Back

Idrostop B25

Idrostop B25 - 1

Idrostop B25

Bentonite-Based, Hydrophilic, Expandable, Flexible Rubber Waterstop Strip for Watertight Construction

Idrostop B25 is a waterstop used to produce watertight construction joints in civil, industrial and hydraulic construction. Idrostop B25 is composed of a mix of natural sodium bentonite and polymers that give the product exceptional properties of compactness, flexibility and stability. The material is produced according to a formula developed in MAPEI’s own research and development laboratories. Idrostop B25’s expanding process takes place in a controlled, gradual and uniform way without the risk of altering the balance of the mix.

Pre-formed flexible strip that features a bentonite base specially designed to form watertight construction joints
Expands gradually in permanent contact with water, creating an active barrier against positive and negative water pressure
When expanding upon contact with water, Idrostop B25 adapts perfectly to the volume defined by the surrounding boundaries.
Able to perfectly seal the formation of localized honeycomb voids that are present in concrete
Stable at temperatures between -22°F and 122°F (-30°C and 50°C)

Related documentation

Technical Data Sheet

Related Products

Last Projects with Idrostop B25

Show all projects with Idrostop B25

Idrostop B25 is part of the lines:

Concrete Restoration Systems - Waterproofing

Products for Waterproofing - Waterproofing accessories

Keep in touch

Subscribe to our newsletter to get Mapei news