Silicon Vent

To cast particularly delicate carved and complicated models the silicon must not only flow freely, but must vent itself. To warrant this flowability add 1-3% Silicone Vent to the silicone and vulcanizer while mixing. The vent binds the small air bubbles in the mould-casting paste and subsequently they rise to the surface. The form is then mostly free of air bubbles. size:- 20ml
£2.71