WB5009 silane coupling agent
GRASi® WB5009 is a high effective waterproof agent developed to provide water repellency for porous construction materials such as concrete, cement, ceramic tile, tile, building insulation material and light weighted composite construction material etc. The active ingredients which is nano-size penetrate deeply into the substrates and bond with them, form penetration protective layer on the surface. With super low surface tension, it boosts excellent water repellency and fast beading action.
Features
- Stronger chemically bond, long lasting protection, good durability, good stability, extend the lifespan of building material obviously
- Good penetration into porous substrates, good abrasion resistance
- Resist water vapor, moisture and liquid water into substrate
- One-way breathable, repair tiny crack (0.2mm-0.4mm)
- Fast curing, quickly for using and very quick dry
- Perform well on alkaline substrates
- Chemical resistance, strong acid, alkali, chloride ion, carbonation; weather, UV resistance - Super excellent
- Frost proof, anti freezing and thawing and resist low/high temperature(-50℃-200℃）
- Does not change surface appearance
- Environmentally friendly
Applications
For use on cementitous substrates such as concrete and mortar that require anti strong acid which like bridge structure, port, pier,airport apron, highway pavement, overpass, parking lot, warehouse, refrigerated warehouse, city square, garage, fish ponds, building indoor and outdoor wall, terrace etc.
Properties
| Appearance |
Transparent liquid |
| Odor |
Slight ordor |
| Specific Gravity |
0.88 ±0.01g/l |
| PH value |
6 - 7 |
Application instruction
GRASi® WB5009 is ready to use penetrating stain repellent, spraying, brushing, or soaking are suitable for application.
Material surface must be clean and dry .
Spray with suitable low pressure, 10-15cm distance away.
Apply the material on substrate until it's thoroughly saturated. For middle or high density substrate, it needs to wipe up excess liquid with soft cloth after apply for 5-10 minutes.
Don't put treated material to moisture or rain place, and dry it in natural air. When the surface is dry, further treatment can be folllowed.
After complete curing, it will achieve an outstanding hydrophobic effect.
Use when the temperature is between 2℃- 45℃（35.6- 113°F）.
Maximum coverage per liter is 4-5 square meters, but depends on substrate density.
Storage
- Keep sealed and store in cool and dry place, use within 24 months.
- Keep away from children.
- Keep away from flame and heat.
Performance after best treatment
| Surface dry time |
4 hours |
| Curing time |
24-72 hours |
| DOP on concrete |
3-10mm |
| Reduction rate of chlorine ion absorption |
99.29% |
Remarks: curing in lab, 25℃
★Weather durability: after 1000Hr QUV resistance test, performance loss less than 10%.
