High volumes of our calcium oxide desiccants Innovox® can be used to successfully eliminate porosity – but this may lead to detrimental effects on finished rubber products, including reduced vulcanisation or increased compression set.

That’s why we’ve developed Birchset® CR, a food contact approved cure stabiliser and compression set reduction additive. Birchset® CR eliminates increased compression set or reduced vulcanisation – without compromising rubber compound performance.

Birchset® CR is an activated polymer, giving it excellent mixing and dispersion characteristics which make it easy to use. Birchset® CR should always be used in combination with Innovox®.