Pmastic

POWDER MASTIC

DESCRIPTION

POWDER MASTIC Tile Adhesive is a white, premium grade cement-based adhesive. It is polymer modified to allow it to be used on a larger range of tiles and surfaces. It is non-slump and has extended open time. It is designed to resist shrinkage and has been specifically formulated to provide superior coverage with smoother and easier application. POWDER MASTIC is classified C1S1TE when tested to AS4992 • Old concrete surfaces must be thoroughly cleaned prior to tiling. • Make sure all release agents are removed from concrete surfaces, especially on tilt-up slabs. • Porous/dusty surfaces (including fibre cement and other building boards) must initially be primed using Davco Ultraprime. • Certain non-absorbent/contaminated surfaces can easily be prepared for tiling via the use of Davco Ultrabond. Movement joints should be provided as follows: 1. Over movement joints in the background. 2. At a junction between different background materials. 3. At fixtures interrupting the tile surface e.g. columns. 4. At internal vertical corners. 5. Around the perimeter of the tiling system. 6. At a maximum of 5 metre intervals in a grid pattern. Note: Movement joints should go right through the tile adhesive bed to the background and be kept free from dirt and adhesive droppings. Movement joints must not be less than 6mm nor greater than 10mm wide. All movement joints that are 6mm wide can be filled with Davco Sanitized® Colorcaulk. For wider applications use Davco Davsil or polysulphide and polyurethane type fillers.

USES

• • Davco POWDER MASTIC is intended for use on walls and floors in interior and exterior applications. Davco POWDER MASTIC can be used to fix tiles onto concrete, cement renders, screeds, blockwork, rendered brickwork, fibre cement sheet, plasterboard and suitable waterproofing membranes. POWDER MASTIC can be used on correctly installed compressed fibre cement sheet floor systems that have been approved for tiling. POWDER MASTIC is...