Kiapolymer is a leader and an innovative company in producing mold release agent (inside tire paint) to be used by tire manufacturers. Kiapolymer has been the largest mold release agent producer and supplier for the last 15 years in Iran. We produce best mold release agents and distribute them to all around the world.

Mold Release Agent

The science behind Mold Release Agent

In production line of each factory specially tire factories, one of the biggest problems is sticking of materials to the surface of a mold. using mold saves a lot of time for manufacturers to build products but without a release agent it would be really hard to use a mold. Release agent or demolding agent prevents bonding of rubber to the mold by producing a low surface energy. If there is not any mold release agent or inisde tire paint between the material and the mold, mold and tyre will bond to each other and it’s very difficult to clean the mold afterwards and results in low efficiency and a lot of waste. Mold release agent is a very essential part of tyre manufacturing like antiozonant wax.

Mold Releasing Agent

Types of Mold Release Agent

There are two different types of mold release agents for tyres, silicone and non-silicone release agents. Mold release agents for tires are usually made of silicone emulsions. Non-silicone release agents which is also called inside green tyre paint is a water based paint and they are usually free of silicone.

Inside Tire paint

Inside tire paints are sprayed on inside layer of tires to make it more slippery so it doesn’t stick to the mold during the shaping process and increase the efficiency of tire manufacturing. There are different methods to apply the emulsion to the tire. Inside tire paint can be applied by brushing or spray gun but the preferred method to apply inside tire paint (mold release agent) is special equipments which is used in tire industry and applies inside tire paint automatically.