Addition cured silicones (platinum catalyst) do not require moisture or open air for it to fully vulcanise. These silicone are designed to cure at room temperature, however heat can be used to accelerate the cure if required, without any detrimental effect. Minimal shrinkage(if any) occurs with these rubbers. These silicones generally have specialised features (i.e. can be used with food, resist higher temperatures etc) Addition cured silicones will not cure properly if poured onto items containing sulphur (such as some sculpting clays). You are required to be accurate with your measurment with these RTV 2 silicones as they  are prone to fail if not done so correctly. Addition (Platinum based) Silicones Sort By Default Title - A to Z Title - Z to A Price - lowest first Price - highest first Time Added - latest first Popularity - most popular first Sales - best selling first Aldax Silicone Putty 10kg A fast curing silicone moulding putty - FDA food safe. $699.00 Out of Stock AMAZING MOLD MAKER - 1.89 L / 64 fl oz - food safe Easy-to-use platinum-based silicone mould-making material. 1:1 mix ratio and low... $99.00 Out of Stock AMAZING MOLD MAKER - 473 mls / 16 floz Easy-to-use platinum-based silicone mould-making material. 1:1 mix ratio and low... $35.40 Out of Stock M4601 A/B Addition Cure RTV-2 Silicone (1kg Kit) Addition cure General Purpose Silicone $88.72 Out of Stock M4644 Clear Translucent Silicone 1.1kg - Food Grade Shore 40A Clear Addition Cure RTV-2 Silicone suitable for producing models with undercuts in... $67.20 Out of Stock M4644 Clear Translucent Silicone 550gm Food Grade Shore 40A Clear Addition Cure RTV-2 Silicone suitable for producing models with undercuts in... $41.65 Out of Stock M4670 High Temperature RTV Silicone Rubber 1.1kg Silicone Rubber suitable for casting low melt metals and other high temperature materials... $105.27 Out of Stock M4670 High Temperature RTV Silicone Rubber 5.5kg Silicone Rubber suitable for casting low melt metals and other high temperature materials... $440.00 Out of Stock Pinkysil Fast Curing Mould Making Silicone 1kg Kit $84.95 Out of Stock Pinkysil Fast Curing Mould Making Silicone 2kg Kit $155.00 Out of Stock Pinkysil Fast Curing Mould Making Silicone 500gm kit $47.95 Out of Stock Pinkysil Fast Curing Mould Making Silicone 5kg Kit $345.00 Out of Stock 1 2 3 next»»