Sealtek
HydroFlex Fibre – Reinforced Acrylic Waterproofing Coating
HydroFlex Fibre – Reinforced Acrylic Waterproofing Coating
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HydroFlex Fibre is a highly flexible, seamless waterproofing solution reinforced with polypropylene fibres.
Designed for use on IBR, tiled roofs, and parapets, it bridges small gaps and provides durable UV-stable protection.
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Looking to Buy in Bulk or Request a Custom Quote?
We work closely with contractors, applicators, and businesses who need more than just a few litres.
Whether you're:
- Ordering in bulk
- Looking for custom colours
- Interested in becoming an approved applicator
- Or sourcing product for a large-scale project
We’re here to help.
All You Need To Know
What's included
- Available in 5L and 20L buckets
- Primer not included (see Repellam or AquaTint for cementitious surfaces)
Key Features
- Fibre-reinforced for added strength
- Fills small gaps and bridges micro-cracks
- UV stable and weather resistant
- Flexible – allows for expansion and contraction
- Seamless, torch-free application
- Eco-friendly and water-based
- Easy to apply by brush, roller or spray
Application And Coverage
Waterproofing (4-coat system)
- Coverage: ±10–25 m² per 20L
- Final membrane build: ±2000 microns
- Apply 4 coats using brush or roller
- Recoat after 1–2 hours (touch dry)
Paint Coating (2-coat system)
- Coverage: ±40–60 m² per 20L
- Micron build: ±800–1000
- Water-resistant but not fully waterproof
Curing:
- Full cure: 7 days at ±25°C
Surface Preparation
- Remove old coatings, salts, algae, fungi, chemicals
- Ensure surface is dry (<10% moisture)
- On cementitious substrates: prime with Repellam or AquaTint (allow to dry ~1hr)
- No primer required on metal surfaces
- Apply when surface temp is 5–35°C
Colour Options
Standard: Grey, White, Black, Terracotta, Green
Custom: Available in 90+ colours (MOQ may apply)
Technical Data
- Form: Liquid
- Specific Gravity: 1.21
- pH: 8.92
- Viscosity: 98–102 KU
- TSC: 49%
- Abrasion Resistance: >10,000 cycles
- Waterproofing: Pass – no bubbling or lifting
- QUV (5000 hrs): Slight fading, no chalking/cracking/delamination
- Estimated lifespan: 10–15 years (lab-tested)