Thursday, November 24, 2011

Sealants for waterproofing of Joints

1. Silicone Sealants:

It is an acetoxy cure, high modulus and single component solvent free material. When properly cured, it becomes a tough, durable and elastic seal which is flexible in low and high temperature. It has excellent adhesion to glass, ceramics and sanitary ware, etc. without any primer. It has low shrinkage, non-sagging good UV resistance and insulation properties.

It is ideal to seal gap between glass and aluminum, non-oily wood, sealing of aluminum/glass window frame joints, fixing glass into aluminum frames.

It should not be used in food industries and for structural glazing. It should not be used for filling gaps on masonry and cementations surfaces.

2. PU Sealants:

Is one part polyurethane sealant for filling and sealing joints in building construction. It is elastic, weather-resistant, non-sagging and water tight with excellent adhesion practically for all surfaces.

It can be resistant to biodegradation and also can be over coated. It is used for sealing of expansion and construction joints as well as joints between different construction materials.

3. Acrylic Sealants:

It is a single component elastomeric acrylic sealant for filling gaps and cracks between various building materials. It is highly flexible with good movement accommodation. It is suitable for different joints like concrete, wood, PVC and aluminum and suitable for indoor and outdoor applications. It can be recoated unlike other sealants.


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