RTV-2 silicone rubber for PU crafts mold making

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It is due to product or model to be molded should hasn't been sanded or polished . If the mold or product is not sanded or polished, the mold made of whatever quality silicone rubber will not be good and smooth enough since the mold or the product itself is not smooth or perfect. Another case is that uneven brushing of the release agent will also bring about unsmoothness of the mold.

Why does the mold made of silicone rubber  have an unsmooth surface with tracks and strips on it?

Frequently asked questions of moulding silicone rubber

(Note: our company does not recommend you to add silicone oil. If a special soft silicon mold or fine detailed and complex patterns products are required, 5%-10% silicone oil can be added to soften the mold for easy demould.)

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 demould, more curing agent is needed; contrarily, if molds requiring slower drying and demould, less curing agent is needed.

RTV-2 Silicone rubber for PU crafts mold making operations

Silicone features: 1) For mold making, for pad printing. 2) high tensile, tear-strength.etc.3) low shrinkage 4) non-deformation