Application
Bathroom & Wet-Area Waterproofing
Bathroom and wet-area waterproofing creates a continuous barrier under tiles at floors, shower niches, and upstands. Petroseal’s PetroSelfGrip (Elastogrip) self-adhesive SBS membrane is designed for flame-free application on primed substrates—useful in occupied buildings where torch work is restricted. Thickness grade (1.5 mm or 2 mm) should match the exposure and designer’s detail.
Recommended systems
Match site condition to a Petroseal system page.
| Condition | Recommended system |
|---|---|
| Internal wet areas | Self-adhesive membrane system |
| Torch restricted | PetroSelfGrip PL-150 / PL-200 |
Technical requirements
- —Smooth, dry substrate; PETRO-PRIMER GRIP where specified
- —Staggered overlaps; firm rolling to exclude air pockets
- —Upstands to design height before tiling
Limitations
- —Not a substitute for correct falls to floor wastes
Application sequence
- Prime
- Cut and align membrane
- Peel and bond
- Detail corners
- Tile
Common failure modes
- —Skipped primer
- —Open corners at niches
Related systems
- Self-Adhesive Membrane System
Self-adhesive membrane systems use SBS-modified bitumen sheets with release film for cold application on primed substrat…
Related products
- PetroSelfGrip
Cold-applied peel-and-stick bitumen membrane in 1.5mm and 2mm.
- PetroDPC
Damp-proof course bitumen rolls for walls, plinths, and foundations.
Technical downloads
- Elastogrip PL-150 / PetroSelfGrip 1.5 mm TDS
SBS self-adhesive modified bituminous membrane — cold-applied peel-and-stick grade for wet areas and detailing.
- Elastogrip PL-200 / PetroSelfGrip 2 mm TDS
SBS self-adhesive modified bituminous membrane — 2 mm grade. Verify PDF content before relying on tabulated values.
Technical guides
- Self-Adhesive Bitumen Membrane for Bathrooms and Terraces
PetroSelfGrip delivers flame-free waterproofing for bathrooms, terraces, and detail zones—when to use 1.5mm vs 2mm and how to bond correctly on Pakistani substrates.
FAQ
- Do I need a torch for bathroom waterproofing?
- Not with PetroSelfGrip / Elastogrip self-adhesive membranes. Torch-applied sheets are a different system family.