RTV silicone for casting artificial stone mold(rubber series)

General description of RTV silicone for casting artificial stone mold

    RTV silicone for casting artificial stone, silicon rubber are generally named two -component room temperature vulcanization silicone rubber, a kind elastic silicone rubber mold which features with resistance to deformation, high-temperature, acid-alkali and expansion. It mainly applicable to make the silicone mould for cultural relic duplication,architectural decoration, resin crafts, lighting ornaments, candles, statues, model design, product exploitation, etc.

Typical model of RTV silicone for casting artificial stone mold

    HY-638# silicon rubber is mainly used for toy gifts and craftwork gifts with the advantages of good tensile strength, high tear strength, high temperature resistance, high duplication times and repeated use, etc. It is suitable for small products or fine and precision products which is difficult to demould. This silicone rubber is one of the products with the highest use level in the production of craftwork gifts and the shrinkage is up to 2.

Applications of RTV silicone for casting artificial stone mold:

    Poly technique, cements, plaster, and  molds in multiple pieces for large products.

Standard Datasheet of RTV silicone for casting artificial stone mold:

Operation Instruction for RTV silicone for casting artificial stone mold:

    RTV silicone for casting artificial stone is white or red flowing liquid with general hardness of 22-50A°after curing .

    If the customer wants to make large products and large size molds, the mold should be made of silicone 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.

(Warm tips: 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.)

The proportions and reactions of the curing agent and RTV silicone for casting artificial stone mold are listed as follows:

   1. Adding curing agent 1%, the silicone can still be operated within 2.5 hours and can be demoulded after 6-8 hours.

   2. Adding curing agent 2%, the silicone can still be operated within 50 minutes to 1 hour and can be demoulded after 2-3 hours.

   3. Adding curing agent 3%, the silicone can still be operated within 28 - 30 minutes and can be demoulded after 1.5-2 hours.

   4. Adding curing agent 4%, the silicone can still be operated within 10 - 15 minutes and can be demoulded after 1 -1.5 hours.

Features of RTV silicone for casting artificial stone mold:

   (1) Silicon rubber for pad printing with SGS and ROSH approval

   (2) Curing agent arrange together as free charged

   (3) In liquid form and in various colors

   (4) With an exceptional fluidity and good operability.

   (5)Temperature and deformation resistance as well as low shrinkage.

   (6) High duplication times.

   (7) Sample orders are available