Product No.: C-825 and C-830
Hardness: Shore A 15, 20, 25, 30
Brand: GuoChuang Silicone
Application: Making molds for polyester, expandable polyurethane foam, solid polyurethane furniture
Keyword: Furniture Molding Silicone, rtv silicone rubber for molding, liquid molding silicone rubber
1. Description
GC RTV silicone C-825 are good for furniture molding. With low shrinkage and excellent tension and tear strength, they are great for replicating complex pattern design of polyester, expandable polyurethane foam, solid polyurethane furniture.
2. Technical Datasheet
| Typical general characteristics | Inspection Method | Value | |||
| Product data (Catalyzed A+B) | C-815 | C-820 | C-825 | C830 | |
| Hardness | Shore A | 15±2 | 20±2 | 25±2 | 30±2 |
| Mix Ratio | A:B | 100:3 | 100:3 | 100:3 | 100:3 |
| Color | / | White | White | White | White |
| Pot life | 25 °C (77F) | 30-40mins | 30-40mins | 30-40mins | 30-40mins |
| Curing time | 25 °C (77F) | 3-4 hours | 3-4 hours | 3-4 hours | 3-4 hours |
| Mixed viscosity | mPa.s | 14000±1000 | 16000±1000 | 20000±1000 | 23000±1000 |
| Tear-strength | kg/cm | 18±2 | 20±2 | 22±2 | 23±2 |
| Tensile-strength | M.pa | 2.5±0.5 | 3.6±0.5 | 4.0±0.5 | 5.0±0.5 |
| Elongation | % | 350±50 | 400±50 | 450±50 | 460±50 |
| Shrinkage | % | ≤0.3 | ≤0.3 | ≤0.3 | ≤0.3 |
Note: This is a 100A:3B mix ratio product that must be measured by weight. The choosing of suitable hardness should be according to the size and pattern design of the products. If large products and therefore multiple-piece molds are needed by customers, silicone rubber with higher hardness will be required for the molds. Conversely, soft silicon is indispensable for molds with complicated pattern and delicate details. The amount of curing agent admixture depends on the actual need of customers. More will be added for speedy drying and fast release and less when otherwise.
3. FEATURES
1.Low viscosity
2.great flexibility
3.Extra low shrinkage
4.Chemical resistance
5.release properties
6.Easy to work with
4.High tear strength
5.Heat Resistance
6.various color is available
7.High reproduction rate
4.Appearance
Part A: Silicone rubber is a white liquid
Part B: Catalyst is a non-toxic and odorless liquid, white transparent color.
ATT: We can provide fast/medium/slow catalyst of for hot, warm or cold season.
5.SHELF LIFE:
When stored at or below 32°C (89.6°F) in the original unopened containers, C-8 series Silicone Base and its Curing Agents have a usable life of I0 months.
6.Package
Silicone base:1kg/drum; 20kg/drum;25kg/drum;200kg/drum.
Curing Agent: 30g/bottle; 1kg/bottle
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