Tin cured RTV silicone rubber for resin products making
Two components liquid silicone RTV rubber for polyresin craftsis a kind of room temperature vulcanized silicone rubber in condensation type. It's generally named as two part silicone rubber , Part A is a flowable liquid, part B is the curing agent or catalyst . It's mainly used for mold making .
Application of Two Components liquid silicone RTV rubber for polyresin crafts
two components liquid rtv silicone mold making rubber for polyresin crafts is used for making molds of concrete stone,GRC, gypsum decoration , plaster ornaments, fiberglass products, polyester decoration, unsaturated resin crafts, polyresin crafts, polyurethane, bronze, wax, candle, and similar products .
Technical Parameters of Two Components liquid silicone RTV rubber for polyresin crafts
| Model | Color | Mixing ratio (%) | Pot life (mins,
under 25ºC) | Curing time
(hrs,under 25ºC ) | Hardness ( Shore A ) | Tensile-
strength (MPa) | Tear-
strength (kN/m) | Viscosity
(After A/B mixed ,mPa.s) | Shrinkage
rate (%) | Elongation
(%) |
| HY-625 | White | 2-3 | 30-40 | 4-5 | 25±2 |
4.3±0.5
|
24±2
|
22000±5000
| ≤0.3% | 200% |
Characteristics of Two Components liquid silicone RTV rubber for polyresin crafts
*Good operability, easy to demold
*High hardness
*High tensile and tear strength
*Cure at room temperature
*High duplication times
Operation instructionsof Two Components liquid silicone RTV rubber for polyresin crafts
Step 1: prepare the original molds
Step 2: Take 100 G parts A and add 3G parts B and mix them evenly.
Step 3: Vacuum pumping
Step 4: Pouring casting or Brush operation