Transform Your Tiling with Mapei Isolastic Latex Additive

Upgrade your cement-based adhesives with Mapei Isolastic, a professional latex additive designed to provide exceptional flexibility, adhesion, and water resistance. Ideal for both professional tilers and experienced DIYers, this additive turns standard adhesives into high-performance systems suitable for demanding interior and exterior applications.

Why Choose Mapei Isolastic?

• Superior Flexibility – Converts adhesives to highly deformable (S2) or deformable (S1) class, perfect for surfaces prone to movement or temperature changes.

• Enhanced Water Resistance – Specifically formulated for wet areas such as swimming pools, bathrooms, balconies, and terraces.

• Strong Adhesion – Improves bond strength on ceramic, porcelain, natural stone, glass mosaic, and large-format tiles.

• Extended Working Time – Provides ample open time for careful installation and adjustment.

• Certified Performance – Complies with EN 12004 C2ES2 and C2ES1 standards for reliable, professional results.

• Versatile Application – Suitable for a wide range of substrates including plasterboard, fiber-cement, concrete, and existing tile surfaces.

Ideal For:

• Installing tiles on deformable substrates such as plasterboard, wood, or fiber-cement.

• Wet area applications: swimming pools, shower rooms, balconies, and terraces.

• Large-format tile and stone installations.

• External facades and precast concrete panels.

• Renovation projects over old floors or existing tiles.

• Areas subject to structural movement or thermal variation.

How To Use:

1. Prepare the Substrate – Ensure the surface is clean, dry, solid, and free from dust, grease, or loose material.

2. Mix the Adhesive – Combine Isolastic (or Isolastic diluted 1:1 with water) with Kerabond T or Adesilex P10 powder. Use a slow-speed mechanical mixer to achieve a smooth, lump-free consistency.

3. Apply the Adhesive – Spread the mixture using a notched trowel. For large tiles or critical areas, apply adhesive to the back of the tile as well (back-buttering) to ensure full coverage.

4. Lay the Tiles – Work within the open time of 20-30 minutes. Tiles can be adjusted for up to approximately 45 minutes after placement.

5. Curing and Grouting – Allow adhesive to set before grouting: wall joints after 4-8 hours, floor joints after 24 hours. Full cure is achieved after approximately 14 days.