Sealtek
ThermaSeal – High-Reflectivity Acrylic Roof Coating
ThermaSeal – High-Reflectivity Acrylic Roof Coating
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ThermaSeal is a UV-stable, thermal insulating acrylic coating designed to significantly reduce roof surface temperatures.
With 83% solar reflectance and up to 50% heat reduction, it improves energy efficiency while offering long-lasting durability.
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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
- ThermaSeal Acrylic Roof Coating (Available in 5L and 20L sizes)
- Primer (Repellam or AquaTint) sold separately if needed for concrete substrates
Key Features
- Reduces roof temperature by up to 50%
- 83% solar reflectance | 91% thermal emissivity
- SRI (Solar Reflectance Index): 105
- Eco-friendly and water-based
- UV stable and resistant to atmospheric agents
- Seamless, flexible coating with excellent adhesion
- Easy application by brush or roller
Application And Coverage
Coverage:
- ±35 m² per 20L (based on 2–3 coats)
- Application may vary depending on surface roughness and absorption
Drying & Curing:
- Touch dry / recoat: 1–2 hours @ 25°C
- Fully cured: 7 days @ 25°C
Surface Preparation
- Remove all existing coatings, dirt, salts, fungi, or algae
- Ensure substrate is clean and dry (<10% moisture)
- On cementitious surfaces: apply Repellam or AquaTint primer and allow 1-hour drying
- On metal surfaces: no primer needed
Method of Application
- Apply first coat with brush or roller
- Once touch dry, apply second coat (and third if required)
- Apply only between 5°C and 35°C
Colour Options
Standard: White, Light Grey