200 - 40,000 kilogram
40,001 - 999,999 kilogram
group nameRTV-2 silicone rubber for molds making
Min Order200 kilogram
brand nameHong Ye silicone rubber
modelHY-728 Molding Silicone Rubber,620# ,625#,628#, 72
payment methodT/T, L/C, Westem Union
update timeTue, 05 Nov 2013 11:36:25 GMT
Certification SGS,MSDS,RoHS
HARDNESS 18-40A
Mixing Ratio 2%
Type silicone rubber
Appearance Fluid
Application Mold making materials
Certificated RoHS, Reach, MSDS,SGS.ISO9001:2008
EINECS No 39100000
Purity 100%
Min Order200 kilogram
RTV silicone raw materials for making molds
RTV moulding&casting materials silicon rubber
for stone concrete casting
for soap&candle sculpture moulds making
Applications of RTV silicone raw materials for making molds
is mainly applied for making various molds,such as reproduction of poly resin, epoxy, polyurethane-polymer, plaster, gypsum, soaps, candle & lighting, architecture, decorative arts and crafts, plastic toy, gift and stationery, big statue, cultural relic product, etc..
Features of RTV silicone raw materials for making molds
Low shrinkage, no deformation, good elasticity, high duplication times, etc.
RTV silicone raw materials for making molds
Model | Color | Viscosity cps | Hardness (A°) | Tensile strength (Mpa) | Tear strength (KN/m) | Elongation % | Mixing ratio % | Pot life(H) | Demould time (H) |
620 | White | 10000-13000 | 20±2 | ≥3.5 | ≥2.4 | ≥400 | 2-3 | 0.5 | 2-4 |
628 | White | 24000-26000 | 28±2 | ≥4.1 | ≥2.9 | ≥420 | 2-3 | 0.5 | 2-4 |
638 | White | 26000-28000 | 38±2 | ≥3.8 | ≥2.6 | ≥380 | 2-3 | 0.5 | 2-4 |
640 | White | 7500-8000 | 40±2 | ≥2.8 | ≥2.1 | ≥260 | 2-3 | 0.5 | 2-4 |
718 | White | 12000-15000 | 18±2 | ≥3.2 | ≥2.2 | ≥380 | 2-3 | 0.5 | 2-4 |
728 | White | 22000-28000 | 28±2 | ≥2.9 | ≥1.9 | ≥360 | 2-3 | 0.5 | 2-4 |
738 | White | 24000-32000 | 38±2 | ≥2.7 | ≥1.8 | ≥340 | 2-3 | 0.5 | 2-4 |
RTV silicone raw materials for making molds
If the customer wants to make large products and large size molds, the mold should be made of silicon rubber with high hardness. On the contrary, if the mold with fine and precision patterns, it should be made of silicon with low hardness. The amount of the curing agent depends on the actual requirements of the customer. If molds requiring fast drying and demold, more curing agent is needed; contrarily, if molds requiring slower drying and demold, less curing agent is needed.
(Note: our company does not recommend you to add silicone oil. If a special soft silicone mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demold.)
Features of RTV silicone raw materials for making molds
1. Good characteristics of easy-operation
2. Light viscosity and good flowability
3. Low shrinkage
4. Favorable tension
5. No deformation
6. Favorable hardness
7. High temperature resistance
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