Waterproofing system
Polyurethane Waterproofing Systems
Polyurethane waterproofing systems apply liquid coatings that cure into seamless membranes—useful on complex geometry, detailing-heavy roofs, and selected wet areas. Petroseal supplies polyurethane coatings with primer and thickness guidance from the product data. Weather windows and skilled application are required.
System build-up
- Prepared substrate
- Primer
- PU base and top coats to specified DFT
- Optional protection
Substrate
- —Concrete
- —Approved prepared decks
Critical details
- —Film thickness control
- —Upstands
- —Crack bridging detailing
Limitations
- —Not interchangeable with polyurea without redesign
Installation sequence
- Prep
- Prime
- Apply coats
- Cure
- Protect
Related applications
- Roof Waterproofing Pakistan
Roof waterproofing in Pakistan must resist high UV, summer temperatures, monsoon wetting, and follow-on traffic during m…
- Podium Waterproofing Pakistan
Podium waterproofing must tolerate structural movement, landscaping loads, and wet–dry cycles while protecting occupied …
- Industrial Waterproofing Pakistan
Industrial waterproofing covers plant roofs, process floors, bunds, and containment where chemical exposure, abrasion, o…
- Water Tank Waterproofing Pakistan
Water tank waterproofing requires materials and detailing rated for continuous or intermittent immersion, potable or non…
Related products
- Polyurethane Chemical Coatings
Seamless liquid waterproofing for roofs, terraces, and industrial floors.
Technical guides
- Polyurea vs Polyurethane Waterproofing: Chemistry, Speed, and Use Cases
When Petroseal polyurea suits tanks and pools—and when polyurethane coatings fit terraces and industrial decks with different cure and UV behaviour.
- Sheet Membrane vs Liquid Waterproofing: Selection for Pakistani Sites
When PetroGrip torch sheets win on laps and thickness control—and when polyurethane or polyurea liquids suit complex geometry, tanks, and details.
- Polyurethane Roof and Terrace Coatings in Pakistan
When liquid-applied polyurethane chemical coatings beat sheet membrane—multi-coat UV systems, complex geometry, and terrace detailing for Pakistani decks.
FAQ
- PU vs polyurea?
- Polyurea typically cures faster and needs plural-component spray equipment. PU systems follow different chemistry and application methods. Select by specification, not brand alone.