RCM Leak Block Waterproofing Coating 5 Litre
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The Story
RCM Leak Block is a high-performance, water-based waterproofing coating designed for long-lasting leak protection on a wide variety of surfaces including roofs, gutters, fibre cement, chromadek, Nutec tiles, AluZinc sheeting, and garden pots. Its superior flexibility and advanced adhesion ensure cracks and gaps stay sealed even in coastal conditions, making it ideal for both DIY homeowners and professionals. Easy to apply by brush or roller, this low-odour, eco-friendly formula provides durable waterproofing with a matt finish.
add_circle The Upside
- check Versatile use on many surfaces including challenging materials like Nutec and AluZinc
- check Excellent adhesion and flexibility for long-lasting leak prevention
- check Low odour and non-toxic, safe for indoor and outdoor use
remove_circle The Downside
- close Requires multiple coats (2-3) for optimal protection, increasing application time
- close Coverage may vary significantly depending on surface porosity, potentially requiring more product
- close Not suitable for all substrates without proper priming (e.g., galvanized sheeting, asbestos)
Specifications & features
Key features
- check_circle Suitable for multiple surfaces: fibre cement, Nutec, chromadek, metal, garden pots, and more
- check_circle Superior flexibility and crack bridging for roofs, flashing, and detailing
- check_circle Coastal grade protection with third coat recommended for high-exposure environments
- check_circle Low odour and eco-friendly water-based formula
- check_circle Easy application by brush or roller
Specifications
Application Temperature
10-30°C, RH ≤85%
Coverage
Approx. 6m² double coated (0.8-1kg/m² depending on surface)
Dry to Touch
~2 hours @ 25°C
Finish
Matt, smooth
Tags
Other
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