Platinum cure molding rtv silicone rubber
is used for prototyping and the reproduction of parts. Silicone moulds can be constructed in many different forms depending on the shape of the part you are making. In this section we will outline how to create the easiest one part flat back mould.

Features of platinum cure molding rubber silicone rtv
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, acid and alkali-resistance and ageing resistance
8. Food grade, non-toxic
Operation of platinum cure molding rubber silicone rtv
RTV625 is suitable for making moulds for small size products by pouring method;
RTV630 is suitable for making moulds for small or medium size products by pouring and brushing method;
RTV638 is suitable for making moulds for large size products by brushing method.

Model Color Mixing ratio Pot life (mins) Demouled time (hrs) Hardness(A0) Tensile-strength (kgf/cm2) Tear-strength (kgf/cm) Viscosity (cps) Elongation (%)
RTV E625 translucent 1 : 1 30-60 4±1 25±2 35±2 25±2 6000±3000 ≥400
RTV E630 translucent 1 : 1 30-60 4±1 30±2 40±2 23±2 7000±3000 ≥395
RTV E635 translucent 1 : 1 30-60 4±1 35±2 47±2 22±2 8000±3000 ≥470
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