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Silicone Engineering > Blog > Archives for June 2015


Find out how Silicone Engineering’s knowledge and expertise in the industry provides explanations and answers to all your silicone questions.

Difference between platinum and peroxide curing?

When we talk about platinum or peroxide curing in the silicone world, curing is when the silicone rubber is chemically cross-linked by means of the addition of a peroxide or platinum curing agent. The curing agents differ chemically to give the end product, in this case silicone, different properties. Here we look at the positives and negatives of each system to make it clearer when deciding on what silicone material you require for your application.


Peroxide Cured Silicone


Easier to process – needs

silicone questions

Open and closed cell silicone sponge differences?

It is important when choosing any form of silicone sponge to understand the difference between open and closed cell. Confusing the two could lead to failure of a seal or gasket in application.

Open Cell Sponge

Open cell basically means that each cell, or if you like bubble, is openly connected to the next cell. These cells are not complete closures therefore water, moisture and dust can very readily make their way into the cell structure.

A good example of an open cell sponge

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