Description
THE LAB BIO-PROOF
Product Overview
THE LAB BIO-PROOF Liquid Seal is a premium, water-based, fire-retardant, elastomeric waterproofing solution designed for concrete, metal, wood, and other surfaces. This versatile sealant fills and seals cracks and joints, preventing water penetration while forming a flexible, durable barrier that tolerates thermal movement without splitting or cracking. Its fast-drying formula handles ponding water and provides long-lasting protection. THE LAB BIO-PROOF is chemical and pollution-resistant, shedding dirt to retain an attractive appearance, and is vapor-permeable to allow substrate moisture to escape without blistering or delamination.
Key Features & Benefits
- Premium water-based, non-toxic, and eco-friendly
- Fire-retardant for added safety
- Excellent adhesion to primed surfaces including concrete, metal, and wood
- Quick-drying allowing multiple coats in the same day
- High elasticity and long-lasting durability
- Resistant to chemicals, dirt, and environmental pollution
- Handles ponding water and prevents water ingress
- Can be applied via brush, roller, or spray
Recommended Uses
- Concrete roofs and precast panel walls
- Metal roofs, parapets, and gutters
- Water features, ponds, and downpipes
- Glazing joints and external wooden surfaces
- Any surface requiring waterproofing, crack sealing, or adhesive bonding
Technical Specification
- Base: Water-based elastomeric sealant
- Finish: Satin
- Application: Brush, Roller, Spray (back roll recommended after spraying)
- Drying Time: Touch dry ~45 minutes / Recoat ~2 hours (25°C, 50% RH)
- Coverage: 6–8 m² per litre per coat (guide only)
- Flammability: Non-Flammable
- VOC Content: <0.05 g/l
- Clean-Up: Water
Technical Data Sheet
For detailed application instructions and full technical information, download the official The Lab Technical Data Sheet – Bio Proof here.

