UNICOVER UNI CRACK (CRACK FILLER POWDER)
Garnish Unicover Crack Repair Powder is a cement-based polymer-modified powder material for filling cracks in the plastered surface. It is composed of cement, siliceous aggregates, polymer and additives which require only water addition. It is ideal to fill 3 to 4 mm wider static cracks. Likewise, it can be used for cracks on all interior and exterior absorbent surfaces, cracks and gaps caused by drying and shrinkage. Not only that, but it has strong adhesion, is non-shrinkable, and has good water resistance properties & weathering durability.
Surface Preparation
Ensure the joint edges are neat and sound. Make sure that the surface is clean & free from standing water. The surface should be free of loose debris. Contaminations of oil, grease or bituminous should be completely cleaned. Roughen smooth surfaces to provide a sound key.
Priming
In normal conditions, Crack Filler Polymer Powder does not require a primer. However, in critical areas, water-based acrylic or SBR-based primers can be used depending on the severity of the surface and application.
Mixing
The mixing ratio of Crack Filler Powder to water varies concerning the area of application.
For surface levelling : The ratio is 2 parts of powder to 1 part of water, which will yield a smooth, buttery consistency.
For filling deep holes and cracks: Reduce the water quantity to get a thicker, pasty consistency. Start the addition of crack filler powder gradually under continuous mixing till a homogeneous lump-free mix is obtained after the addition of a balanced quantity of water.
For smaller mixes: A wooden or metal spatula can be used and mixed manually.
For smaller mixes: A hand-drill mixer with a paddle stirrer can also be used. The total mixing time shall not be more than 5–10 minutes. The final mixed product would be of dough consistency, paste. In case further soft consistency is required, a measured quantity of water can be used.
Method of Application
Fill the mixed paste into the crack with a spatula or putty knife blade. Fill excess material and tool it with a Putty knife blade pressing against the crack so that air voids get filled. Using a wet finger, tool the surface of the material into a concave nature by pressing against joint edges.
