Characters of silicone rtv-2
RTV mold silicone compound.
Excellent fluid property
Mold release property
Weather resistance
Simple operation
Vulcanizing time and operation time adjustable
Deeper vulcanizing available
Stable mould dimension
Thermal resistance
Chemical resistance
Good physical property, high tear streangth
It is specially suitable for products made from unsaturated polyester, good durability and long processing life of the mould
Applications of silicone rtv-2
The soft mold made of RTV silicone rubber mainly use for products which are made from unsaturated polyester, polyurethane resin, gypsum and paraffin as below,
1. Crafts
2. Furniture part and assembly
3.Lighting parts
4.Other decorating products
It can be also used in fields as below,
1. Leather printing
2. Transfer printing rubber head
3.Other elastic products
Typical physical propeties of silicone rtv-2
| Propeties | BQ-Q7901 | BQ-Q7900 | BQ-Q7902 | BQ-Q7903 | BQ-Q7904 | BQ-Q7905 | BQ-Q7906 | BQ-Q7907 | BQ-Q7908 |
Unvulcanzied Vulcanized | Vulcanizing type | condensation |
| Apearance | Semitransparent | Skin color | Milk white |
| Viscosity Pa.s*2 (30℃) | 40 | 40 | 40 | 40 | 30 | 40 | 40 | 40 | 40 |
| Operation time min(25℃) | 10 | 10 | 10 | 11 | 10 | 10 | 10 | 12 | 12 |
| Curing time min(25℃) | 45 | 45 | 45 | 30 | 30 | 30 | 30 | 35 | 35 |
| Hardener content | 2.2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| Hardness Shore A | 23 | 23 | 30 | 24 | 25 | 29 | 24 | 28 | 28 |
| Gravity (25℃) g/cm3 | 1.1 | 1.1 | 1.1 | 1.2 | 1.15 | 1.2 | 1.2 | 1.1 | 1.1 |
| Tensile strength(MPa) | 4.3 | 4.3 | 4.3 | 4 | 4.2 | 4 | 4 | 3.6 | 3.6 |
| Elongation(%) | 650 | 650 | 650 | 500 | 550 | 400 | 500 | 370 | 370 |
| Tear stength | 28 | 28 | 28 | 24 | 25 | 24 | 24 | 20 | 20 |
| Linear shrinkage rate(%) | 0.3 | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 |
