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Dongguan Mingcheng Electronic Technology Limited
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Description of Mould Making Silicone Rubber for Resin Castings
mould making silicone rubber for resin casting, RTV-2 Silicone Rubber mold making series are two-component, condensation-cure, tin-catalyzed, very high tear strength, flexible mold compounds. A tough, knotty tear strength making them especially valuable to the mold making industry.
Applications of Mould Making Silicone Rubber for Resin Castings
mould making silicone rubber for resin casting , RTV-2 mold making rubbers are suited for reproduction of cement molding, concrete stones, artificial stones, plaster molding, figures, art objects, decoration molding, GRC products, gypsum products, resin products, PU molds. Etc.
Features of Mould Making Silicone Rubber for Resin Castings :
Room temperature cured
Easy release properties
Very high tear strength
Good chemical resistance
| Item | RTV2025 |
| Color | white |
| Curing agent | CA30 |
| Mixing ratio | 100:2 |
| Mixed viscosity | 24000~25000 cps |
| Working time | 30-40 mins |
| Curing time | 4-6 Hours |
| Hardness | 23-25 Shore A |
| Tear Strength | 30 N/mm |
| Tensile Strength | ≥3.8 Mpa |
| Shrinkage | ≤0.3% |
| Elongation at break | 500% |
| Relative density | 1.11~1.15g/cm3 |
Operations and instructions of Mould Making Silicone Rubber for Resin Castings :
1-Take 100g of part A and add 2g of part B and mix the silicone rubber and curing agent evenly.
2-vacuum pumping
Without exception, this step takes less than 10 minutes. Otherwise, it will cause , and no more further steps will be available
3-Pouring mold or block mold of silicone rubber
The pour molding is an easy way to make molds, it’s Slowly and evenly perfuse the mixed silicone rubber into the square frame. After the cross linking reaction.
Storage and Precautions of Mould Making Silicone Rubber for Resin Castings :
RTV-2 mold making silicone rubber, which is an environmentally-friendly liquid silicone product, is not easy to burn and can be stored and transported as non-hazardous goods. The shelf life of the product is about one year from the date of production. Inspection is required when exceeding the time limited. It can continue to be used in case of neither thickening nor deterioration.
Package of RTV 2 mold making silicone rubber
Part A base silicone: 20kg/drum, 25kg/drum or 200kg/drum
Part B CA30 Curing Agent: 800g/bottle, 1kg/bottle and 10kg/bottle
Professional factory:
We are manufacturer, and specialized in manufacturing different hardness, different viscosity silicone rubber series, we are competitive in price with good quality.
Should you have any question, please feel free to contact Ms Julie.
Skype: julieszmc
MSN: julieszmc(at)hotmail(dot)com
MINGCHENG GROUP LIMITED