Silicone water repellent
Quantity:
silway 7288
Silway 7288 Silane polymer, a waterproofing agent designed for constructions
As a water repellent for construction materials, this product is a highly effective waterproof agent and can be widely used in many fields where it is necessary to protect the substrate from liquid water ingress. It is an ideal waterproof solution for various construction materials, effectively enhancing the protection against moisture penetration.
As a water repellent for construction materials, this product is a highly effective waterproof agent and can be widely used in many fields where it is necessary to protect the substrate from liquid water ingress. It is an ideal waterproof solution for various construction materials, effectively enhancing the protection against moisture penetration.
Silway 7288 is an efficient solventless silicone waterproofing agent that combines the unique properties of silane and siloxane. Diluted Silway 7288 demonstrates powerful waterproofing effects, particularly suitable for impregnating and priming mineral and highly alkaline substrates. The silane polymer component within Silway 7288 tightly binds to porous, absorbent mineral construction materials, enhancing the firmness and durability of the waterproof layer. Meanwhile, the siloxane component, along with the silicone water repellent it contains, imparts excellent water repellency to prevent moisture penetration.
Typical Applications
- Brickwork
- Aerated concrete
- Cement fiberboards
- Concrete slab
- Mineral-based natural and artificial
- stone ，wood
Silway 7288 is also suitable as
- primer for exterior paints.
- All kinds of concrete
- Sand-lime brickwork
- Mineral plasters
- Mineral paints
Silway 7288 is not suitable for rendering gypsum water repellent.
Key Features
- Good depth of penetration
- High resistance to alkalis
- Tack-free drying
- Effective even on damp substrates
- Rapid development of water repellency
After application to the mineral substrate, Silway 7288 reacts with the atmospheric moisture or pore water in the substrate, thereby generating the active ingredient while liberating alcohol. The active ingredient greatly lowers the water absorbency of the substrate, which nevertheless retains a very high degree of water vapour permeability since neither pores nor capillaries are clogged.
Typical Physical Properties
Appearance | Colorless Transparent |
Active Content, % | 90% |
Dilution Type | Solvent（such as ethanol） |
Specific Gravity (25/25 ℃) | 0.9 g/cm3 |
Viscosity(mpa.s) | 10-20 |
Solid content | >80% |
Usage
Surface must be clean, dry and free of contaminants before construction.
Surface must be clean, dry and free of contaminants before construction.
Dilute Silway 7288 with organic solvent such as ethanol, isopropanol or petroleum solvent. To prevent or reduce the harm to the operator and environment, please avoid using solvents like Methanol, Benzene and Chlorinated solvents. Solvents with boiling point range from 140-190 ℃ and flash point higher than 40 ℃ are more recommended. If the above- mentioned solvents are used, Silway 7288 should be diluted in a weight ratio of 1:10 to 1:15. For slightly damp substrates, Petroleum hydrocarbon solvent is better than alcohols.
Spray or brush diluted solution twice or more on substrates, or impregnate substrates into diluted solution for few minutes. If spray or brush method applied, the reconstruction should be taken only after the former coating is dry. Fully cured treated substrate for few days under room temperature, a high temperature would be helpful to accelerate the reaction. Better to do a water absorption test after 24 hours.
Packing
200L or 1000L drums or according to customer request.
Storage
- Avoid children coming into contact with this product
- Being storage in closed containers
- No fire on the construction site
Shelf Life
12 months
