Bustan Mastic is a single-component, multi-purpose acrylic sealant designed for pointing and gap-filling on common building surfaces. Unlike the ASMACO S2200 silicone sealant discussed earlier, this product is an acrylic-based sealant that forms a flexible seal with minimal shrinkage after curing. 

Key Specifications & Features

• Type: Multi-Purpose Acrylic Sealant (Water-based/Acrylic)
• Formulation: Single-component, ready-to-use (no mixing or primer required on new substrates)
  
• Flexibility & Adhesion: Accommodates moisture and thermal movements; adheres well to building substrates like metal, aluminum, and general masonry
• Shelf Life: 12 months in original packaging (stored in a dry environment)
• Application Temperature: +5°C to +50°C
• Adjustability: 3 hours
• Coverage: ~40 sq. ft. per kg