Tips & Instructions of silicone rubber mold making process

1. Component B/ Part B is the catalyst/curing agent, which is easily affected with damp and occurs hydrolysis, so it needs to keep tightly closed after use.

2. After mixing A with B, it will have chemical reaction immediately/their chemical reaction begin immediately, the viscosity rises gradually, can’t be stopped, to avoid waste, it should mix according to the amount, use immediately after mixing, do not delay.

3. The mixing ratio of part A silicone and part B catalyst is related to the speed of their chemical reaction and the property/performance of the mould. The more of component B/ Part B, the faster of reaction is, the strength and hardness of the products is higher, but the tensile strength/ Elasticity decreased. Therefore, accurate weighing required.

4. Pouring method suits for relief sculptures, Brushing method suits for vertical mold making.  The length and width of mold frame of the Relief sculptures which is made by pouring method should be 4-6cm bigger than the original/master mold. The mold frame needs to be flat and the inner surface should be smooth. Put the mold frame onto the clean glass board before pouring, then put the original/master mold into the mold frame, keep a distance of 2-3cm each side.