ST-CF4500 Sealant
Product Introduction
- Santam Technology's sealing adhesive is a high-performance, one-component wet-curing product that provides permanent elastic bonding. This UV-resistant adhesive delivers exceptional strength and elasticity, making it ideal for bonding diverse materials including plastics, glass fiber reinforced plastics (FRP), sheet-molded composites (SMC), aluminum, steel, coated metals, and wood. Even in extreme environments, it maintains high tensile strength, excellent UV resistance, moderate hardness, and superior modulus.
This product has the following features:
1) Excellent sealing performance to prevent medium leakage;
2) High bonding strength, ensuring tight integration with diverse materials;
3) Excellent weather resistance, adaptable to various climates;
4) Excellent elasticity and scalability, adaptable to dimensional changes;
5) Waterproof and moisture-resistant, protecting objects;
6) Resistant to chemical corrosion with excellent insulation properties;
7) Easy to construct, eco-friendly, and highly customizable;
Use ：
1. Sealing of building doors/windows, walls, kitchen and bathroom;
2. Engine, body, and window leak-proofing;
3. Protection of electronic components and their enclosures;
4. Sealing of aerospace fuselage and engine;
5. Waterproofing for ship decks, compartments, and pipelines;
6. The enclosure, pipelines, and containers of industrial equipment are sealed.
performance index ：
|
product model |
ST-CF4500 |
|
Viscosity (MPa·s) |
30000-40000 |
|
Tensile strength (MPa) |
12.0 |
|
Shear strength (MPa) |
6.0 |
|
elongation at break （%） |
150% |
|
Hardness (Shore A) |
70 |
|
droop （mm） |
≦3 |
|
Ultraviolet resistance test |
qualified |
|
Salt Spray Test |
pass through |
|
Flame retardant (UL94) |
V0 |
|
working temperature （℃） |
-30~80 |
|
Surface drying time (min) |
10 |
Construction process recommendations:
1. Cleaning: Remove dust, water, and oil stains from the product surface, and maintain dryness.
2. Mixing: Before proportioning, first stir Agent A to incorporate the pigment (filler) that has settled at the bottom into the adhesive solution.
3. Mixing ratio: Weigh the ingredients according to the A/B ratio of the purchased product and pour them in sequentially (*Note: Use weight ratio, not volume ratio).
4. Mixing: Thoroughly mix the prepared A/B adhesive to prevent incomplete curing.
5. Defoaming: After mixing and stirring the adhesive, let it stand for 5-10 minutes to allow natural elimination of bubbles. If conditions permit, vacuum defoaming may be performed.
6. Application of adhesive: Pour the degassed adhesive into the product requiring adhesion, and use it within the recommended time frame.