What is Neutral Cure Silicone?

Types of Silicone

Not all silicones are the same! You can spend several thousand pounds on a bathroom refurbishment and the cost of the silicone sealant can be as low as £2. But what is in that tube?

Silicones can be generally classed as either Acetoxy or Neutral Cure.

Acetoxy cure silicone gives off an acetic acid when curing, resulting in a pungent vinegar like smell.

Neutral Cure Silicones are relatively odourless, releasing an alcohol during the curing process.

Manufacturers like ourselves only recommend the use of Neutral Cure Silicones, as many of the Acetoxy Silicones have too many limitations. Acetoxy Silicones are often branded as general purpose, with different brands having varying degrees of added solvent – some Acetoxy Silicones can cause reactions with some rubbers and plastics.

Classi Neutral Cure 100% Silicone

For the perfect finish, Classi has its own range of Neutral Cure, Sanitary Grade 100% Silicone.

Classi Neutral Cure 100% Silicone is designed to work perfectly with our Classi Waterproofing solutions. It is a premium low modulus silicone which has been specifically designed to have excellent adhesion and elastomeric properties for sealing joints in the bathroom and kitchen where movement can be expected. 

This easy-to-use silicone is practically odourless when curing, is mould and mildew resistant and conforms to ISO11600-F&G-25LM. Classi Neutral Cure 100% Silicone comes in White and Clear.

We recommend the use of a Neutral Cure Sanitary Grade 100% silicone with our Classi products.

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