Factory Direct Supply
TY-SHIELD™ APP (Atactic Polypropylene) modified bitumen waterproofing membrane — a torch-applied, reinforced sheet membrane engineered for hot-climate roofing and high-temperature waterproofing systems. Available with polyester (PY), glass fiber (G), or glass-reinforced polyester (PYG) reinforcement, in PE film, fine sand, mineral granules, or aluminum foil surface finishes across 3mm, 4mm, and 5mm thicknesses. Compliant with GB 18243-2008. Factory-direct supply with full OEM and private-label support for international building material importers and wholesalers.
Reinforcement Options
PY (Polyester) | G (Glass Fiber) | PYG (Glass Fiber Reinforced Polyester)
Standard Roll Size
1m × 10m = 10m²; 1m × 7.5m = 7.5m²
For project-specific pricing, send your technical requirements and destination port.
TY-SHIELD™ APP (Atactic Polypropylene) modified bitumen membrane is the industry standard for high-temperature regions. Unlike rubber-modified SBS, APP uses a plastomeric polymer that ensures the bitumen remains firm and stable even when roof surface temperatures exceed 80°C under intense solar radiation.
| Feature | APP (Plastomeric) | SBS (Elastomeric) |
|---|---|---|
| Best Climate | Hot (Middle East, Africa, SE Asia) | Cold (Northern Europe, Russia, N. America) |
| Heat Resistance | 130°C (Type II) | 105°C (Type II) |
| Dimensional Stability | Excellent (Resists Sagging) | Good |
| Low Temp Flexibility | -15°C (Type II) | -25°C to -30°C |
High Tensile & Elongation
Best for exposed roofing and large-area projects where structural movement is expected.
Dimensional Stability
Best for multi-layer non-exposed systems and substrates with minimal thermal movement.
The Balanced Performer
Combines PY's strength with G's stability. Ideal for commercial roofs and high-wind infrastructure.
Full Versatility
3 Reinforcements & 4 Surface Finishes (PE/Sand/M/ALU).
Standard Compliance
Every batch tested against GB 18243-2008 requirements.
Export Packaging
Fumigated pallets & protective corner boards for safe transit.
Direct Supply
Factory pricing with complete OEM & private label support.
Extreme Cold Climate?
See our SBS Bitumen Membrane for flexibility down to -25°C.
Safety-Sensitive Site?
Check our Self-Adhesive Series for torch-free installation.
Contact our export team with your target specification, application, quantity, and destination port. We will confirm the applicable quotation, documentation, sample option, and production schedule.
Select the reinforcement, thickness and surface finish to match your project requirements. Contact us with your specification for a tailored quotation.
| Configuration | Reinforcement | Thickness | Surface | Recommended Use |
|---|---|---|---|---|
| — | Polyester Felt (PY) | 3mm / 4mm / 5mm | PE FilmFine SandMineral Granules | — |
| — | Glass Fiber Felt (G) | 3mm / 4mm / 5mm | PE FilmFine Sand | — |
| — | Glass Fiber Reinforced Polyester (PYG) | 3mm / 4mm / 5mm | PE FilmFine SandMineral Granules | — |
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All thicknesses and surface finishes shown are available in standard production. Custom roll dimensions, packaging and private-label printing are available subject to minimum order quantity. Final configuration should be selected according to climate, substrate, waterproofing system design, exposure condition and local project specifications.
The standard choice for exposed roof systems across the Middle East, Southeast Asia, and tropical regions, where surface temperatures regularly exceed 80°C. Type II APP compound holds its shape at 130°C with no flow or drip, resisting the sag and slip that softens conventional bitumen sheets.
Specified for factories, smelters, and process buildings where roof decks absorb radiant heat from plant operations. The plastomeric APP matrix maintains dimensional stability through repeated high-temperature cycles without embrittlement.
Used as mineral-surfaced cap sheet in multi-layer commercial roof assemblies and as a torch-applied base layer over stable substrates. Mineral granule surfaces add UV protection and foot-traffic resistance for long-service-life roofing.
Applied to concrete bridge decks and elevated structures in hot climates, where the membrane must tolerate both high service temperatures and thermal expansion stresses. PY and PYG reinforcements provide the required tensile performance.
With a softening point significantly higher than SBS, our Type II APP membrane resists sliding, dripping, or deformation even on steeply sloped roofs under intense direct sunlight. It maintains a consistent thickness across the entire application area.
APP modification fundamentally changes the bitumen's molecular structure, making it highly resistant to oxidation and the brittle failure typically caused by long-term UV exposure in tropical environments.
From specific reinforcement weights (PY/G/PYG) to custom surface colors and private label branding, we offer full flexibility for international distributors to tailor the product to their local market's technical and aesthetic standards.
Optimized for high-heat torch application, the APP compound creates a robust, fused overlap. The resulting 'welded' seam ensures a continuous, watertight barrier that is resistant to the stresses of thermal cycling.
APP Modified Bitumen, PY / Mineral Surface / Type II / 4mm (Representative Configuration)
| Test Item | Unit | Test Method | Requirement | Result / Notes |
|---|---|---|---|---|
| Soluble Content (4mm, PY) | g/m² | GB 18243 | ≥ 2,900 | ≥ 2,900 (qualified) |
| Tensile Strength (L/T, PY) | N/50mm | GB 18243 | ≥ 800 | 900+ (qualified) |
| Elongation at Break (PY) | % | GB 18243 | ≥ 30 (I) / ≥ 40 (II) | 40%–50% (Type II) |
| Heat Resistance (Type II) | °C / 2h | GB 18243 | 130°C | No flow, drip, or slip |
| Heat Resistance (Type I) | °C / 2h | GB 18243 | 105°C | No flow, drip, or slip |
| Low Temp Flexibility (Type II) | °C | GB 18243 | -15°C | No crack |
| Watertightness | MPa / min | GB 18243 | 0.3MPa, 30min | Impermeable — passed |
| Nail Shank Tear Strength | N | GB 18243 | ≥ 300 | Typical value; confirm with the product TDS |
| Thermal Aging — Dimensional Change | % | GB 18243 | ≤ 1.0 | ≤ 1.0 (passed) |
| Mineral Granule Adhesion | g | GB 18243 | ≤ 2.0 (loss) | Typical value; confirm with the product TDS |
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Values shown apply to the stated product configuration. Other reinforcement types (PY / G / PYG), surface materials (PE / S / M / ALU), and performance grades (Type I / II) may have different performance values. Request the corresponding TDS and batch test report before specification or procurement.
Cross-reference for engineering specifications & global procurement
| Property | China (GB) | USA (ASTM) | Europe (EN) |
|---|---|---|---|
| Tensile Strength | ≥ 800 N/50mm (PY) | ASTM D6222 | EN 12311-1 |
| Heat Resistance | 105°C / 130°C | ASTM D5147 | EN 1110 |
| Low Temp Flexibility | -5°C / -15°C | Reference value; confirm with the product TDS | Reference value; confirm with the product TDS |
| Compliance Status | GB 18243-2008 | Equivalent | Equivalent |
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* Technical Note: The values shown are reference information for the selected product configuration. Confirm the applicable standard, test method, certification scope, and product-specific documentation with our technical team before specification.
Ensure the substrate is smooth, dry, clean, and free from loose material, sharp projections, standing water, oil, and debris. Apply compatible bitumen primer and allow it to dry fully before membrane installation.
Unroll the membrane for positioning. Align overlaps (minimum 100mm side, 150mm end) and mark reference lines. Stagger end laps between adjacent rows by at least 300mm.
Using a propane torch, evenly heat the burn-off PE film and the substrate ahead of the roll. Move the torch in a controlled arc pattern. The bitumen coating is ready when it develops a uniform glossy melt across the full width.
As the bitumen melts, roll the membrane forward with steady, even pressure. A small bead of molten bitumen should squeeze out from the leading edge — this confirms full-width bonding. Use a roller on all seams.
Rolls are stacked vertically on fumigated wooden pallets, secured with heavy-duty strapping, corner protectors, and weather-resistant stretch film for safe ocean freight transit.
Full support for custom roll labels, barcodes, brand-name printing, and bespoke packaging design. We supply your market with your brand — minimum order quantities vary by specification.
Store rolls vertically in original packaging, in a cool, dry, covered area away from direct sunlight. Recommended temperature: +5°C to +30°C. Shelf life: 12 months from production date.
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