SikaTop®-551 Seal Part A, Waterproofing Coating

SikaTop®-551 Seal Part A (formerly MasterSeal® 551 Part A) is the base component of the SikaTop®-551 Seal two-component, flexible, cementitious waterproofing slurry. It must be combined with Part B before application.SikaTop®-551 Seal is a flexible, acrylic-modified cementitious coating that provides a proven waterproofing barrier on concrete and masonry, widely used across India for basement, terrace and water tank waterproofing.Key Benefits Flexible, bridges hairline cracks up to 0.3 mm Bonds to green, damp and even slightly wet concrete Resistant to hydrostatic pressure (positive and negative) Vapour permeable, substrate can breathe Brush, roller or spray application Typical Applications Waterproofing of basements, lift pits and underground structures Water tank and sump waterproofing Terrace and balcony waterproofing under tiles Retaining wall waterproofing Technical Data (mixed system) Mix ratio: As per pack label (A:B by weight) Pot life: ~1 hour at 25°C Coverage: ~1.5–2.0 kg/m² per coat (2 coats required) Crack bridging: 0.3 mm Note: Order Part B separately. Request bulk pricing.