We accept walk-ins and collections at our office/plant located at 28 Tuas West Road, Singapore 638383. Alternatively, you can find our nearest retailers near you: https://www.mapei.com/sg/en/dealer-locator. We recommend to always call in to ensure that stocks are available before heading down.
You may send us your Purchase Order via email at customerservice@mapei.com.sg.
Our payment options are Cheque, Digital Bank Transfer, PayNow.
We do not accept any cancellation or amendment once order is finalised. You may revise your order if it is still under process by calling us or sending us an email at customerservice@mapei.com.sg.
You may call our customer service DID or approach any of our Retailers to enquire on our products. Customer Service DID: 66725555 / 66725566 / 66725577.
Our Retailers:
You may approach our Retailers to purchase our products. Look for our retailers located near you,click here.
Here at Mapei Singapore, we try our best to provide a complete product line as a building material supplier. There may be instances when items are out of stock due to importation.
For Local Production - It takes around 1 week to arrange for production, subject to raw material availability and production schedule.
For stocks from SEA – Lead time to indent is around 1 to 2 weeks, subject to stock availability and custom clearance.
For stocks from Italy – Lead time to indent from Italy is around 8 to 10 weeks, subject to stock availability, container situation and custom clearance.
You can call in or email us to check on the stock availability and estimated lead time.
Yes, we provide delivery (*charges may apply). Alternatively, you can arrange for self-collection.
For orders that are less than $800 (excl. GST), transport charges apply at $64.20 (incl. GST). *Note that transport charges are subject to change and prevailing conditions. Always call in to check with our customer service team.
For orders S$800 and above (excl. GST), we provide free delivery.
If stock is available, product(s) can be delivered within 1-2 working days upon order received. Do always call us up or email us (customerservice@mapei.com.sg) to check on the stock availability and estimated lead time.
By seafreight, there is ex-works option where customers can arrange for container loading at our premises. For customers residing outside of Singapore, there is the CFR and CIF option. If the country you are situated at have the presence of a Mapei subsidiary, your enquiry will be taken care of by the subsidiary.
This is subject to duty and tax at the import country.
Should you have any queries on our tile adhesive, tile grout, floor coating, waterproofing products/ solutions or other product lines, you can reach us at 6862 3488, mapei@mapei.com.sg, on social media via Facebook, Instagram, LinkedIn. Our working hours are 8.30am – 6pm, Mon-Fri (excluding Public holidays).
We are located at 28 Tuas West Road, Singapore 638383.
MAPEI is a world leading producer of adhesives and complementary products for the fixing of all types of floor and wall coverings. In addition, the company is an important worldwide player for the manufacture of chemical building products such as cementitious and resin flooring, structural strengthening, concrete repairs, masonry repairs, protective and decorative wall coatings, waterproofings, sealants, underground constructions, concrete admixtures and cement additives. Our wide range of products and technical service offer solutions for improving job sites, both big and small. Experience proven by numerous notable projects worldwide.
Mapei is building material supplier founded in Milan since 1937. In Singapore, we have been in the industry for more than 30 years continually providing a wide range of specialized chemical building products.
Our notable projects in Singapore are Jewel Changi Airport, the Flower Dome at Gardens by the Bay, Mapletree Business City 2, Marina Bay Sands, Circle Line, Thomson-East Coast line, The Interlace condominium, Funan Mall, Victoria Theatre, Changi Jurassic Mile cycling track and more. To learn more, visit our Projects site.
We have more than 60 products that are certified by the Singapore Green Building Council (SGBC). The range of products cover Tile adhesive and grout, Waterproofing products, Floor coating and Adhesives for soft coverings/vinyl and Wall protective coatings. The product certificates are available on our website.
Mapei is a building material supplier in our product lines range. We do not cover installation.
You can download ‘MAPEI APP’ from the AppStore or PlayStore to browse Mapei Singapore’s range of floor coating, tile adhesive and grout, wall coating, waterproofing materials and other products. Select the country where you are at and let the page load.
Get updates on our e-magazine - Realta Mapei, access technical data sheets and certifications from our products range and access grout and sealants calculator to estimate consumption for your project.
There are none. You can use our app hassle-free. Mapei APP is free from advertisements.
Anyone who wishes to refer to the technical data sheets, certifications and more with ease. It is particularly useful for users who have an idea of Mapei’s products.
You can head to our product lines and solutions page to learn more. If you are facing difficulty, please write in to us.
You can browse our video library on our website.
You can write in to us or call us at 6862 3488. Alternatively, you may contact us using other means indicated under COMPANY INFO > How to contact us.
Realta Mapei is our bi-monthly magazine that features information on topical news, worldwide project references, interviews, expert opinions and Mapei’s commitment to sustainability, art, culture and sports. The latest issue of our e-magazine is available for download here.
You can subscribe here. There is no subscription fee. Alternatively, please write in to Mapeimktgsg@mapei.com.sg.
Our newsletters are published bi-monthly. Please write in to Mapeimktgsg@mapei.com.sg.
MAPEI has several cementitious repair mortar products such as Planitop G40 SP and Mapegrout Thixotropic (normal-setting mortars) or Planitop Smooth & Repair R4 (fast-setting mortar). Please refer to the relevant technical data sheets of the products for more information.
Cracks in concrete can be treated using epoxy-resin based products such as Epojet or Epojet LV. After preparation/cleaning of the cracks, these products can be applied directly to fill the surface cracks or can be injected inside the structure for Epojet LV. Please contact MAPEI Technical Service for the specific details on the treatment of concrete cracks.
We recommend consulting a structural engineer to determine the degree of concrete damage and the extent of repair that must be done. Typically, repair of spalling/hollow concrete involves the removal of crumbling/damaged/loose parts up to sound substrate, cleaning the substrate, treating corroded rebars (if any) with Mapefer 1K, and application of the appropriate repair mortar such as Planitop G40 SP, Mapegrout Thixotropic, or Planitop Smooth & Repair R4.
For floors with voids, the type of repair material depends on the strength class, exposure class, repair thickness, etc. Products related to such repairs are typically non-shrink grout and repair mortars. Non-shrink grouts such as Mapefill GP or Mapefill SP are recommended for grouting voids in structural elements by pouring or pumping. It can be used for patching up honeycombs in concrete, filling gaps in precast elements and grouting base plates and bridge bearings, etc.
For repairing the external face of floor slabs, a controlled-shrinkage, fibre-reinforced cementitious mortar (such as Planitop HPC Floor) that meets the strength requirement can be considered.
It depends on the strength and thickness required for the structure. There are mortars that come in various strength and performance that are suitable for different types of repairs. Thixotropic repair mortars such as Planitop G40 SP are recommended for repairing deteriorated vertical or horizontal concrete surfaces with mortar possessing medium mechanical performance characteristics. For structural repairs with higher performance, Mapegrout Thixotropic and Planitop Smooth & Repair R4 are suitable. To have even higher strength repair mortar, you can consider Planitop HPC Tixo. The type of mortar depends on the site requirements. For example, sulphate resistant mortar is more suitable for buildings near the sea.
If the rebar is in bad condition, the section of the corroded rebar has to be cut and replaced with a new one. If the rebar is rusted and not corroded, the concrete can be hacked around the rebar. Brush away the rust and then apply corrosion-inhibiting mortar such as Mapefer 1K on the rebar.
Repairing thin section (4-6mm) of spalling concrete: if the rebar is corroded, repair that first. Then use formwork and pump non-shrink grout into the mould.
Repairing thick section of spalling concrete: fill aggregates in the formwork before pumping non-shrink grout.
Shrinkage cracks are ‘hairline’ cracks or plastic shrinkage cracks. What happens is that concrete goes through hydration process, plastic shrinkage which occurs when the concrete surface dries faster than the rate of water evaporation. It is usually caused by high temperature between the concrete and ambient air, humidity, wind velocity, etc. To repair, grind the surface and apply cement-based finishing coat such as Planitop S12 to smooth the surface.
First, consult a structural engineer to assess the site and then work with a building material supplier like Mapei to propose suitable materials for intervention.
Yes, pitted concrete can be repaired using skim coats.
Yes. To know more, refer to our article “Pre-wetting of concrete substrates: why?”.
There are many possible outcomes when you use too much water in mixing concrete. It could result in bleeding, segregation, low performance of the concrete and excessive shrinkage of the concrete.
Use non-shrink grout such as Mapefill GP and Mapefill SP. For fast-setting grouts, Mapegrout SV, Planitop HPC range and Planitop Smooth & Repair R4 can be considered.
Epoxy flooring is a great option when it comes to your home. It’s made with a highly durable resin that allows for multiple aesthetic changes. It is known for its sleek finish. The resin, once cured, is smooth and shiny. Epoxy floors are resistant to a large number of chemicals such as solvents and acids, easy to maintain, combines well with underfloor heating, and is decorative. Epoxy floors are available in many different colours and design.
Terrazzo is a composite material, poured in place or precast, which is used for floor and wall treatments. It consists of chips of marble, quartz, granite, glass, or other suitable material, poured with a cementitious binder (for chemical binding), polymeric (for physical binding), or a combination of both. Metal strips often divide sections, or changes in colour or material in a pattern. Additional chips may be sprinkled on top of the mix before it sets. After it is cured, surfaces are ground and polished smooth or otherwise finished to produce a uniformly textured surface. "Terrazzo" is also often used to describe any pattern similar to the original terrazzo floors.
It depends on the epoxy system. It can be a simple epoxy roller coat that can have a low budget of S$10-15 per square meter up to a beautiful highly durable Terrazzo flooring that could cost between S$200-S$300 per square meter.
That would depend on the chosen flooring system.
Pros: Epoxy flooring is highly durable (can last for a long time) and an affordable flooring solution.
Cons: Demanding installation process. The preparation before installation takes time.
Most industrial epoxy flooring applications last between 5 to 10 years, though occasionally they last longer. A factor that influences an epoxy coating's lifespan is the strength of the concrete flooring. The initial layer of concrete is the base of your floor and it is the first factor that will determine the lifespan of your epoxy floor coating. Epoxy flooring systems are hard, abrasion-resistant, and have high-impact strength. In residential cases, some epoxy floor coatings have been known to last for 30 years, but industrial and commercial settings are generally subject to much higher rates of vehicular and foot traffic, as well as spills, accidents, or other issues that can wear epoxy down faster.
Yes, if your terrazzo flooring has lost its appealing high gloss shine due to UV lighting or long-term wear, you can restore its look by having it restored. Restoration is also the recommended option if there are holes on the surface of your terrazzo. The holes may cause liquid stains to seep into your floor and discolour it. If you decide to undertake a DIY project, remember that terrazzo restoration only makes sense if done right. Otherwise, your terrazzo flooring problems will continue to show signs of damage, and you’ll still end up having to call in the pros anyway.
If you take your shoes off and keep the floor clean and free of sand, it can still look great after twenty years. Once the terrazzo flooring is looking dull, you simply need to polish it. There will be no need to replace it when the only issue is dullness.
Ensure that the concrete is structurally sound. If you want to obtain durable results with your new epoxy flooring, the first step is to check the state of the floor. A reliable epoxy flooring contractor will test the concrete and determine its condition. One of the most common tests is water vapour transmission; too much water in the concrete structure prevents proper coating adherence.
There are two main types of concrete, hard and soft, as well as rain affected. With this kind of concrete, the slab was poured either in rainy conditions or the concrete was affected by rain before it dried. Slabs need to be tested before you coat over the top, as hydrostatic pressure can literally blow the coating off.
Clean the floor. This stage is compulsory before installing any type of floor. Vacuum up any dirt and dust to clear the surface and ensure perfect adherence of the new flooring.
Choosing the right type of diamond for grinding or shotblasting. Another important aspect to keep in mind with floor preparation for epoxy flooring is to ensure a proper diamond grinding or shotblasting of the concrete.
Ensuring levelling and flatness. Levelling and flatness are two different things, but they are achieved at the same time. Getting a substrate level and/or flat can be very costly but it is required for obtaining good results.
Patching holes and cracks in concrete. Prior to installing epoxy flooring, you will often need to patch holes and cracks using a variety of appropriate products.
Epoxy flooring installation requires experience in order to ensure a good finish. Therefore, choosing the right installer for your flooring solution from the start will save cost and the hassle.
Screeds are normally laid to achieve a desired level to prepare the floor to receive the specified finishes. In this case, the screed thickness shall be the required thickness to achieve this desired level.
Although they both have similar functions to level the substrate, the selection on which to use will depend on the application. Screed mortars are normally laid to receive tile and stone finishes and the mix consistency of the mortar is such that the application is normally done by hand or manually floated to obtain the desired level. The mix consistency of self-levelling products are more fluid and designed to self-flow and achieve a more accurate level vinyl adhesive to receive resilient finishes such as vinyl, carpet and engineered wood flooring.
It depends whether you are doing an underlayment or overlayment. If you are using self-leveling as an underlayment, then it will normally be covered with a final finish such as vinyl, carpet, wood or tile. If you are laying an overlayment, then you will need to protect its surface finish with sealing products or resin flooring.
There is a range of self-leveling products with different levels of mechanical strength to meet your application specifications. Please contact us for a product quote.
The occurrence of cracks for self-leveling screed can be due to a variety of reasons - shrinkage, movement etc.
Most tiles are installed with cementitious tile adhesives onto normal screed and render substrates. There is a wide range of cementitious adhesives with various physical properties to cater for different types of tiles, i.e., tile size on wall and characteristics.
Installing larger tiles necessitates higher performing tile adhesives. You can consider Mapei’s Keraflex Maxi S1 to install large format tile over 60 x 60cm.
You can consider Mapei’s Ultralite S2, one-component improved performance cementitious tile adhesive which is lightweight and has properties of high-tension adhesion strength, extended open time and high deformability.
You can use Mapei’s Isolastic 50 + Adesilex P10, a two-component cementitious tile adhesive to install glass mosaic in swimming pools and water features. Allow adequate curing in a dry environment, i.e. 21 days, before filling pool with water.
You can use Mapei’s Isolastic 50 + Kerabond T, a two-component cementitious tile adhesive to install tile in swimming pools and water features. Allow adequate curing in a dry environment, i.e. 21 days, before filling pool with water.
To prevent tile crazing with Glazed Ceramic Tiles, we suggest that you use a two-component cementitious tile adhesive with good deformability such as Mapei’s Isolastic 50 + Kerabond T. Isolastic 50 is an elasticizing liquid latex that improves the deformable and physical properties of the cementitious adhesive.
When using a single component tile adhesive powder, i.e., mixed with water only, you will need about 1.2 kg per mm thickness per sq. of adhesive powder. When mixing the adhesive powder with a liquid latex additive, i.e, a two-component cementitious mix, you will need about 1.2 kg of powder + 0.4 kg of liquid latex per mm thickness per sq. of adhesive mix.
Yes, you can but you cannot use cementitious tile adhesives for this application. To bond tile onto steel or metal surfaces, use a reaction-resin type of adhesive such as Mapei’s Kerapoxy or Keralastic/Keralastic T.
Yes, you can use an improved performance cementitious tile adhesive with high deformability such as Mapei’s Ultralite S2, Isolastic + Kerabond T or Elastorapid for the installation. If there are joints between the plywood planks, it is recommended to do a “crack suppression” treatment with Mapei’s Mapelastic + Mapenet 150 for reinforcement.
Yes, you can lay new tiles over an existing floor tile surface using a good tile adhesive such as Mapei’s Keraflex or Keraflex Maxi S1. This is provided the existing floor surface is sound and stable and there is no trace of hollowness in the existing floor.
You can consider Mapei’s Keraquick S1 or Granirapid for rapid installation of tile and marble. If you also require a rapid drying screed binder, you can consider Topcem Pronto.
If you are installing marble on the wall, we suggest you use an improved adhesive with high tensile adhesion strength and good deformability characteristic. Choices would include Mapei’s Keraflex Maxi S1 or Isolastic 50 + Kerabond T which is a two-component tile adhesive mix of liquid latex and powder adhesive.
Marble and granite, being natural stones, can be porous and sometimes moisture sensitive. During the installation, when the stone is in contact with the moisture in the cementitious adhesive bedding, moisture marks may appear on the stone body. In this case, care needs to be taken to select the correct tile adhesive so as to prevent staining on your marble.
Use fast-setting cementitious tile adhesives such as Mapei’s Keraquick S1, Granirapid or Elastorapid to install marble and natural stones that are slightly sensitive to moisture. How do I know if a tile adhesive is fast setting? Fast-setting adhesives that belong to class F in the standards are denoted with a "F" symbol on the product data sheet and packaging.
For artificial and compressed marbles, to overcome the marble’s sensitivity to moisture and humidity, we suggest that you use fast-setting cementitious adhesives such as Mapei’s Keraquick S1, Granirapid or Elastorapid for the installation. You can also consider using reaction-resin based tile adhesives such as Mapei’s Kerapoxy or Keralastic for the installation.
When installing large sized tiles, it is advisable to also apply a lean or scratch coat of adhesive onto the back of tile. When tile is placed onto the adhesive that is applied onto the substrate, ensure that tile is pressed down with firm pressure until adhesive is fully compacted and rid of air voids.
No, tile adhesive is the product to bond the tile to the surface whereas tile grout is to fill the joints between tiles. They serve different functions and thus have different physical properties.
Yes, you may refer to current updated standards such as ISO 13007-1 and BS EN 12004. You may also refer to our article “Understanding tile adhesives and its related standards”.
Cementitious tile grouts that comply with ISO 13007-3 or BS EN 13888 have low water absorption properties and should be water resistant. For added improvement, you can mix the cementitious tile grout with a polymeric grout admix.
This can happen if too much water was used when cleaning the cementitious tile grout during the application process. After grouting, you should remove the excess grout mortar with the edge of the rubber trowel and then clean the residue on the tile surface with a damp sponge.
If the tile grout is still intact and there is no trace of deterioration, you can apply Mapei’s Fuga Fresca, an acrylic resin paint in water dispersion to bring back the colour of tile joints in ceramic tiles. Fuga Fresca is available in 34 different colours.
Most tile joints are filled with cementitious grout mortars. However, if you prefer a stain and chemical resistant grout, then select an epoxy-based tile grout such as Mapei’s Kerapoxy or Kerapoxy Design.
Yes, there are primarily 2 types of grouts to fill tile joints; cementitious grouts which is in most installations and epoxy grouts if you want a stain and chemical resistant grout.
Most cementitious grouts and epoxy tile grouts for tile joints are available in a range of colours for your selection. Colour selection is subjective and its beauty will lie in the eyes of the beholder. Logically, many will select white coloured grout for white tile. However, white tiles can also look attractive when the joints are filled with a contrasting coloured grout.
During the installation of cementitious grouts, the cleaning can be done with clean water. When using strong colours of tile grouts, you may need repeated cleaning with new buckets of clean water and sponge. For hardened tile grout, sometimes it may be necessarily to use cleaning agents with neutral pH. Be careful not to use strong acids for cleaning cementitious grouts.
During the installation of cementitious grouts, the cleaning can be done with clean water while the grout mortar is still fresh. When using strong colours of tile grouts, you may need repeated cleaning with new buckets of clean water and sponges. For hardened grout, it may be necessarily to use cleaning agents with neutral pH and light scrubbing pads. Be careful not to use strong acids for the cleaning cementitious grouts.
Decorative possibilities include selecting contrasting colours to complement the tile colour. For glass mosaics you can also consider adding Mapeglitter to Kerapoxy Design for a sparkling effect to the tile grout finish.
Mapei has complete solutions portfolio for waterproofing underground structures. Mapeproof AL AP, Mapethene HT SP and Mapelastic Foundation are some products developed for underground waterproofing. First, we need to understand the water table and type of construction for the project before a right product is being proposed.
Do speak to Mapei Waterproofing Product Manager on the right product.
Yes you can! Depending on specification requirements, Mapei is able to offer waterproofing in various applications. Our range of waterproof concrete products are: Idrocrete WP and Idrocrete KR 1000.
Do speak to Mapei Waterproofing Product Manager on the correct waterproofing material.
Damp-proofing can be done using a damp proof membrane like Mapefoil DPM under the Mapei Waterproofing range of products.
The cost is relative to the type of waterproofing material and application method used to waterproof your basement. Selecting the right product to waterproof would result in better savings as you can mitigate risk of future leaks and maintenance cost.
Recommended basement waterproofing would be positive-side waterproofing where you can protect the concrete structure from possible ingress of water.
Waterproofing membrane is generally applied on the positive-side of the structure to create a tanking system to protect concrete structure from possible ingress of water.
Best would be defined as the right product waterproofing applied by experienced applicator mitigating all risk of possible water ingress in future.
The main difference would be the application method. Each has its own advantages. Liquid applied membrane can take any profile of the concrete surface, while waterproofing membrane sheet is consistent in terms of membrane thickness and characteristics. Aquaflex Roof, Plastimul PU and Purtop Easy are examples of Liquid Applied Membrane. Mapethene TA, Mapethene HT SP, Mapeproof AL AP and Spider P are examples of Sheet Membrane.
Yes you can! This would generally be known as Negative-side waterproofing. Negative-side waterproofing is common for old buildings where excavation is not allowed around the building to do positive-side waterproofing.
Depending on the location of the wall, various waterproofing products can be used to waterproof a wall.
Do speak to Mapei Waterproofing Product Manager on the correct proposed waterproofing material.
Waterproofing can be categorized into 3 major applications type. 1) Sheet Membrane, 2) Liquid Applied Membrane, and 3) Sprayed Applied Waterproofing Membrane (by machine).
There are a wide range of waterproofing products. These include Cementitious, Synthetic Membranes, Polyurea, Polyurethane, Bituminous etc.
Do speak to Mapei Waterproofing Product Manager on the correct proposed material.
Proper planning on waterproofing application affects the durability of the waterproofing membrane. Often permanent fixtures on the roof are neglected.
Liquid applied acrylic waterproofing membrane OR Hybrid PU sprayed waterproofing membrane are suitable. Note: choose a suitable primer that can bond well with the metal roof and waterproofing membrane. Always consult a professional to recommend the most suitable solution.
Silicone sealant contains inorganic substance whereas polyurethane sealant is organic in its composition. Silicone sealants are easy to extrude and smooth off, resistant to ageing, high service temperatures and chemicals. They can adhere to building materials such as glass, ceramic and aluminium. They are often used for sealing expansion joints in wall and floor coverings of ceramic and cement that are not subject to heavy abrasion, plumbing fixtures and sanitary ware such as bathtubs, basins, showers, expansion joints in swimming pools, around doors, windows, utility cable, etc.
Polyurethane sealants on the other hand, can adhere to a wide range of building materials such as cement-based products, bricks, steel, aluminium, general pre-painted surfaces, glass, wood-based materials, gypsum, ceramics, plastics, etc. They have high mechanical and wear resistance, resistant to chemical and corrosion, are highly adhesive and paintable with elastic paint.
Polyurethane sealants are useful as a heavy-duty adhesive and sealant. It is suitable for industrial floors subject to vehicular traffic, concrete floors and walls, sealing pipe-work systems and cables, sealing general fillet joints, etc. It can also be used for constructing and finishing building works such as skirting boards, bathroom fittings, window sills, etc.
The drying process may vary. It may cure or set after 24 hours for internal application but when applying externally with a temperature of ±30⁰C, it may cure or set within a day. The rule of thumb is to touch the surface of the sealant to ensure that it is not tacky which indicates that the sealant is set.
All surfaces to be sealed must be kept dry, sound and free of dust, crumbly parts, oil, grease, wax and old paint. It is important that the polyurethane sealant bond perfectly to the sides of the joints and not to the bottom to allow for expansion and contraction. For expansion and contraction joints, an option is to place a polyethylene cord at the bottom of the joint before applying polyurethane sealant.
Mapei have a polyurethane sealant that can adhere well to wood and wood-based materials. As for silicone sealants in the Mapei range, it is possible to use on wood, though it is required to apply an additional primer such as Primer FD to act as a bonding enhancer before applying silicone sealant. Primer FD can adhere well on concrete, wood, metal, painted surfaces, plastic and rubber.
The elastic sealants category available on the market is made up of various polymers: acrylic, bituminous, butyl, hybrid, silicone and polyurethane. Each of them has their own specific physical-mechanical characteristics and specific areas of use.
Acrylic and Bitumen sealants, Hybrid sealants, Polyurethane sealants, Acetic silicone sealants, Neutral silicone sealants.
Industrial floors are subject to severe mechanical and chemical stresses and loads. Sealants must have the capacity to elastically absorb movements in the joints and be able to resist contact with chemical substances and exposure to mechanical stresses caused by passing heavy goods vehicles. Polyurethane sealants such as Mapeflex PU45 FT, Mapeflex PU 50 SL, Mapeflex PU 65 and Mapeflex PU 70 SL are suitable in this case. These sealants have good resistance against chemical attacks from hydrocarbons.
Mould and algae will form when sealants are exposed to conditions of damp and high temperature. Certain elastic sealants may be able to delay mould and algae formation due to the presence of biocides that oppose the formation of efflorescence. Mapesil AC is formulated with biocides and BioBlock technology which extends mould/algae protection for a longer period of time, especially when correct, periodic maintenance is carried out on the sealant.