DESCRIPUTION
STS402 Polyurethane Sealant is a one component polyurethane high modulus flexible sealant formulated as reliable bonding adhesive and joint sealant for construction industry, particularly where a higher modulus and lower movement capacity are required for joints with low or medium movement, e.g. connection joints between floor/stairs and wall, connection joints between floor and machinery, seam sealing / sealing of pipe ducts / ventilation systems, multipurpose joints in metal and wood construction work.
CHARACTERISTICS
1. Non-sag consistency
2. Excellent adhesion to most common building materials
3. High tear strength
4. High tensile strength
5. Less fluid migration to porous material
6. Fast curing speed, high efficiency, easy operation
7. Non-corrosion to most substrate
8. Excellent weather resistance
APPLICATIONS
Mostly for area where low movement, high resistance to penetration and pressure are required.
Areas requiring intumescent sealing.
Connecting of insulation materials and roof construction.
For waterproofing of air face on bridges, tunnels and drainage pipe.
For precast panel, concrete external wall panel, stone panel and colorful steel panel bonding and sealing.
Sealing joints in concrete, epoxy, stone and quarry tiled floors.
Sealing penetrations in walls or floors for ducts, piping, etc.
TYPICAL PROPERTIES
Property |
|
Density(g/cm³)³ |
1.20±0.1 |
Specific Gravity ( g/cm³) |
1.35±0.05 |
Tooling time( 23°C/73°F, 50% RH) |
≤3 h |
Hardness (shore A) |
35-45 |
Maximum joint width (mm) |
35 |
Minimum crack width (mm) |
8 |
Application Temperature |
+5 ℃-35℃ |
PACKAGEING & SHELFLIFE
STS402 is available in 10.1 fl. oz. (300 ml) plastic caulking cartridges.
Shelf Life: 6 months from the manufacture date stored in cool & dry place
Below 23℃, 50%RH