Petroseal
PetroGrip SBS
PetroGrip SBS (styrene-butadiene-styrene) torch applied membrane offers superior flexibility, elongation, and crack-bridging compared to APP—preferred for basements, podiums, split slabs, and structures with thermal movement. Manufactured in-house by Petroseal in 3mm and 4mm with plain, aluminum, or granular surfacing options.
Key features
- — SBS modifier for flexibility and structural movement accommodation
- — Thicknesses: 3mm, 4mm
- — Surfacing: Plain, Aluminum Layer, Granular Layer
- — Torch-welded side and end laps
- — Manufactured in-house by Petroseal Enterprises
Applications
- — Basements, rafts, and retaining walls (plain SBS)
- — Podiums and split slabs with movement joints
- — Exposed roofs where SBS build-up is specified (aluminum/granular)
- — Multi-ply systems with APP cap sheet above SBS base ply
Technical specs
Thickness
Surfacing
Roll width
Roll length
Pakistan climate recommendation
Use SBS 4mm plain for basement walls and rafts; pair with APP cap sheet on exposed roofs. See the APP vs SBS technical guide on our blog for full system design.
| Thickness | 4mm |
| Surfacing | Plain |
| Roll width | 1m |
| Roll length | 10m |
Surfacing guide
- Plain: Roof on slab, beds, basements, retaining walls—most common for below-grade and protected layers.
- Aluminum Layer: Exposed applications requiring flexibility plus UV-facing surfacing.
- Granular Layer: Traffic zones and wear surfaces; occasional use in basements and beds.
Performance profile
Relative orientation only — not laboratory test results or certified performance percentages.
Technical downloads
TDS and brochures for this product. Open the HTML specification page or download the PDF.
- PetroGrip SBS Waterproofing Membrane TDSPDF ↓
Polyester-reinforced SBS-modified torch-applied bitumen membrane — 3 mm nominal thickness, 60/70 bitumen base.
Technical guides
Application notes and specification articles for this product.
- APP vs SBS Bitumen Membrane: Which PetroGrip System Fits Your Project?
Compare PetroGrip APP and SBS torch-applied membranes—modifier chemistry, surfacing options, and where each system belongs in roof and below-grade build-ups across Pakistan.
- Torch-Applied Waterproofing: PetroGrip Site Practice
How PetroGrip torch-applied bitumen membranes are specified, primed, and welded on roofs and podiums—with quality checks that protect your warranty.
- Basement Waterproofing with Bitumen Membrane Systems
Design and install basement waterproofing with PetroGrip SBS torch membrane and PetroSelfGrip sheets—substrates, laps, protection boards, and Lahore-manufactured systems for nationwide projects.
- 3mm vs 4mm Waterproofing Membrane: When to Specify Each in Pakistan
Thickness selection for PetroGrip APP and SBS torch membranes—substrate condition, traffic, double-layer basements, and what 3mm or 4mm actually changes on site.
- How to Select a Basement Waterproofing System in Pakistan
A specification workflow: water table, access, joint strategy, and when to choose PetroGrip SBS, double-layer SBS, or cementitious remediation.
Related applications
Where this product is typically specified.
Related systems
System pages that use this product.
Application map
- Basement: Plain SBS on raft and walls.
- Podium: SBS with granular where traffic loads apply.