- Appilicatios of mold making silicone rubber
mould making silicone rubber is mainly applied for many kinds produccts mold making, such as toys, gifts, decoration, plate engrave, human replica, art crafts,resin crafts, poly resin crafts, unsaturated resin crafts, candle crafts, plastic crafts, stationeries, plaster crafts and buddhist statue crafts, etc.
2.Features of mold making silicone rubber
mold making silicon rubber with the advantages of good tensile strength, good tear strength, high tempreture resistance, high duplication times and repeated use etc. It is suitable for small products or fine and presion products which is difficult to demould, The silicone rubber is one of products with high level use in production of artwork gift and the shrinkage is up to 0.2%.
3.Different models of molding making silicone rubber.
Molding making silicone rubber includes models codes of 620#,640#,628# and 638# with the hardness of 18-22 shore A, 38-42 shore A, 25-30 shore A and 35-42 shore A respectively.
620# and 640# molding making silicone rubber are particularly suitable for pouring mold.
620# is for small crafts mold making, while 640# is for large crafts mold making. Common features of 620# and 640#: light viscosity, pourable effort, easy-operation, good fluidity, good tensionn and high tear strength.
628# and 638# are particularly suitable for brushing mould making.
Common featurs of 628# and 638# molding making silicone rubber: moderate viscosity, easy-operation. If customers make molds in bushing way, thixo-agent are available if requested. It won't affect the quality of molding making silicone rubber but to make the operation much easier.
4.FAQs of mold making silicone rubber
1).why is the appearance of the finished mold striate and unsmooth?
It is because the appearance of the oproduct or the model itself is not perfect, and it has not been polished before the further operation. So when you make silicon molds, firstly you should olish the product, spray the mold spray evenly on the product.. In this case, the problem can be avoided.
2).why isn't the silicon mold acid & alkaliand aging resisant
It is due to the addition of the silicon ol. Normally we do not advise our customers to add any silicon oil into the silicon rubber. If it is necessary, the ratio must be ;ess than 5%-10%.
