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Mapesonic 2

All-in-One Membrane for Crack Isolation, Sound Reduction, Waterproofing and Vapor Management

Mapesonic 2 is a patented, next-generation, flexible, 76-mil thin, lightweight, load-bearing, fabric-reinforced, “peel-and-stick” membrane for sound reduction, crack isolation, waterproofing and vapor management. Application of Mapesonic 2 can be immediately followed by installation of finished flooring.

Mapesonic 2 reduces transmission of impact sound (such as footsteps and dropped objects) and airborne sound (such as voice and TV) through floors when installed under ceramic tile, stone, vinyl and wood floorings. It also helps to prevent existing or future in-plane floor cracks (with movement up to 3/8" or 10 mm wide) from transmitting through grout, ceramic tile and natural-stone assemblies.

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Flooring Products for Sound Reduction

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Mapesonic 2 is part of the lines:

Floor Covering Installation Systems - Sound-Reduction Products

Tile & Stone Installation Systems - Crack Isolation and Sound Reduction

FAQs

Can I install LVP/LVT over Mapeguard 2?

No, but we recommend using Mapesonic RM 2 (2 mm) for sound control under LVT.

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Can Mapesonic 2 be used in exterior environments?

Yes, with these limitations: Do not use on exterior floors with drainage of less than 1/4" per foot. And do not use on shower floors or in submerged applications, or on floors subject to standing water.

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Can Mapesonic 2 be used for waterproofing, sound reduction and uncoupling?

Yes, it can be used for sound reduction, crack isolation, waterproofing and vapor management. However, when using Mapesonic 2 for vapor management, do not use MAPEI SM Primer or MAPEI SM Primer Fast; instead, use MAPEI HM Primer. If there are seams, the use of Mapetape BB tape is also necessary for waterproofing and vapor management.

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Can I use Mapesonic 2 over oriented strand board (OSB)?

Yes, with these limitations: Tile must be installed per installation standards published in the most current TCNA Handbook, ANSI 108 specification. And if the OSB is weather-beaten or delaminated, it must be properly overlaid with a cement backer unit or an additional layer of subfloor.

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Can I install LVP/LVT over Mapesonic 2?

Yes, with these limitations: Use MAPEI adhesive Ultrabond ECO 350, Ultrabond ECO 360, Ultrabond ECO 373 or Ultrabond ECO 399. Also, follow MAPEI’s Technical Data Sheet instructions and use a 1/32" U-notch trowel. Finally, expect 60 to 90 minutes of flash time before installing the LVP/LVT.

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Can Mapesonic 2 be installed over a heated floor?

Yes, however, do not use with radiant floor-heating systems that exceed 104°F.

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