Overview
Liquid PU forms a seamless membrane that follows any shape, so it suits areas with many penetrations and corners. High elongation lets it bridge small movements and hairline cracks.
Exposed systems need a UV-stable (aliphatic) topcoat. Dry film thickness must reach the design, usually controlled by kg/m² coverage and wet film readings.
Uses
- 01Exposed concrete roofs and terraces
- 02Balconies, loggias and wet rooms
- 03Pipe penetrations and gutters
- 04Car park decks (with wearing course)
Selection and acceptance checks
- Check substrate moisture and primer before application
- Control coverage and film thickness
- Flood test after curing
Reference standards
- ETAG 005
- EN 1504-2
- ASTM C836
For reference only. The standards for each project follow its design documents, current Vietnamese codes and the investor’s requirements.
Reference brands
- Sika SikaSwiss construction chemicals group: admixtures, grouts, waterproofing, sealants, flooring and structural strengthening.
- Mapei MapeiItalian group in construction chemicals, tile adhesives, waterproofing and concrete admixtures.
Brands are listed for reference; World Steel selects suppliers according to each project’s specification.
Sectors and solutions
Sectors
High-rise buildings Infrastructure Commercial buildings FDI factories
World Steel services
General contracting Expansion and upgrade Warranty and maintenance
