Bina Torchseal
Heavy-duty torch-on membrane with polyester reinforcement — for large flat roofs, decks and buried structures.
Bina Torchseal
Bina Torchseal is an APP-modified bitumen membrane with a spun-bonded nonwoven polyester core coated both sides with APP-modified bitumen. The polyester core gives high tensile strength, elongation and lap-joint strength, so a properly installed membrane forms an impervious, permanently flexible blanket that absorbs normal structural movement without cracking. It can be used in exposed or covered applications and is installed in a single torch-welded layer.
Best for:
- Concrete flat roofs & roof slabs
- Exposed decks & car parks
- Reservoirs & water-retaining structures
- Basements & tunnels (buried tanking)
Why specify Bina Torchseal
Total impermeability
Excellent ageing & weathering resistance
Outstanding bond & seam integrity
Stable at high temperatures
Very high impact & puncture resistance
Single-layer install reduces labour & errors
Application method
01
Prepare and prime the substrate; install flashing details at peripheries and protrusions.
02
Torch-weld the membrane to the substrate (or loose-lay with bonded laps), melting the underside just enough to bond.
03
Maintain 10 cm side laps and 15 cm end laps; re-heat and trowel overlaps to seal seams.
04
Protect (screed/tiles) for covered applications, or use the granule finish for exposed roofs.
The numbers, straight from the datasheet
Real manufacturer data. Download the full TDS on the downloads page.
| Type | APP-modified bitumen membrane, polyester reinforced |
|---|---|
| Softening point (ASTM D36) | 155 °C |
| Cold flexibility (ASTM D5147) | 0–4 °C |
| Tensile strength (ASTM D5147) | Longitudinal 840 N/5cm · Transverse 720 N/5cm |
| Elongation @23°C | 45% (L & T) |
| Tear resistance | L 400 N · T 350 N |
| Heat resistance (110°C, 2 hr) | No flow |
| Water absorption (24 hr) | < 0.1% wt |
| Nominal weight / thickness | 3 or 4 kg/m² · 3 or 4 mm |
| Roll size | 1 × 10 m |
| Coverage | 1.15 m²/m² per layer (10cm side / 15cm end laps) |
| Finishes | Black smooth / mineral granule / sanded |
| Standards | ASTM D6222 Type II · UEAtc · CGSB 37-GP-56M · DIN 52133 |
Trusted on real waterproofing projects
Bina-manufactured systems, applied by our own teams on roofs, tanks and structures across Malaysia.
Torch-on membrane, rooftop plant
Bina-manufactured, Bina-applied
Concrete flat-roof membrane
Bina-manufactured, Bina-applied
Waterproofed institutional roof
Bina-manufactured, Bina-appliedOther Bina waterproofing systems
Bina Multiproof 5000
Cold-applied, seamless acrylic membrane with 300% elongation — flexible, recoatable, heat-reflective.
Learn more →
Bina Flexseal 2000
Two-part flexible cementitious slurry — breathable, bondable under tiles and screeds, ideal for wet areas and tanks.
Learn more →
Binaseal 1000
High-strength penetrating cementitious slurry that seals concrete capillaries — also a thin-layer honeycomb repair.
Learn more →Get a quote for Bina Torchseal
Tell us your surface, area and site condition — we’ll confirm this is the right system and quote design, supply and application.