Solutions for Waterproofing & Ceramic Tile Application on Gypsum Boards and Plaster Surfaces - Quick Solution

Surface Preparation

Before waterproofing and ceramic tile application on gypsum boards and plaster applied surfaces, it must be ensured that gypsum boards are sound. Gypsum boards or plaster applied surfaces are the absorbent and that are exposed to flexing movement. Prior to the waterproofing application, the substrate should be primed with 4505 Kalekim Astar (Primer) to reduce its absorbency and a proper adhesion surface should be formed. Expansion joints between the panels should be filled with 8001 Kalemastik against possible cracking.

Waterproofing Application

Before ceramic tile application on plaster surface or gypsum board in wet areas such as bathroom, shower, WC etc., Izoline 100, which is a 3 layer extra elastic waterproofing membrane that is composed of modified polyethylene films laminated in between polypropylene seals with high alkali resistance, should be applied. 3501 Kalekim Waterproofing Tape (Type III) and Izoline 100 Complementary Components should be installed with 1059 Ultratech tile adhesive mortar (minimum C2 and S1 class) at critic areas such as gypsum boards or plaster surface floor wall and corners, pipe details (inner corner, outer corner, pipe and drain cuffs).
Depending on the area to be applied, Izoline 100 waterproofing membrane is cut to appropriate sizes and installed on 1059 Ultratech ceramic adhesive mortar (minimum C2 and S1 class) applied with by means of a 4 mm or 6 mm notched trowel. 100% surface adhesion of Izoline 100 must be ensured by removing the excessive mortar underneath by applying force from the center to the edges by means of a trowel in a way that no air bubbles remain on the surface.
When applying Izoline 100 side-by-side, two membranes must be overlapped by at least 5 cm and these parts must be fixed together with the ceramic adhesive used for bonding.

After the surface dries, it must be waited for 7 days for full setting and leak-tightness tests should be carried out for 24 hours.

Tiling and Grouting

In cases where no immediate ceramic tile application will be made on Izoline 100, the surface must be protected from direct sunlight and rain. After application of Izoline 100, tiling can be started without waiting. 1059 Ultratech, the quick setting tile adhesive mortar with S2 class, should be used for tile application. Regarding the grouting mortar application, 2400 Fugaflex Rapid, high performance cementitious flexible grouting mortar with high resistance to abrasion and reduced water absorption, will be a perfect system complement in the bathrooms.

APPLICATION LAYERS

1. Gypsum Board / Gypsum Surface   
2. Kalekim Astar (Primer)
3. Ultratech                           
4. İzoline 100
5. Ultratech                          
6. İzoline 100
7. Ultratech                         
8. Ceramic Tile
9. Fugaflex Rapid