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What is Neutral Cure Silicone?

There is a general lack of knowledge in the industry when it comes to silicones. You can spend several thousand pounds on a bathroom refurbishment and the cost of the silicone sealant can be as low as £2. This doesn’t make sense. Silicones can be generally classed as either Acetoxy Cure of Neutral Cure. Acetoxy cure silicone gives off an acetic acid when curing, which smells like vinegar whereas Neutral Cure Silicone is relatively odourless releasing an alcohol during the curing process. Many Acetoxy silicones contain added solvents, and have numerous limitations printed on the tubes and are often marketed as General Purpose. Acetoxy siliones are considerably cheaper than neutral cure silicones. Many manufacturers like ourselves only recommend the use of Neutral Cure Silicones, as many of the Acetoxy Silicones have too many limitations, with different brands having varying degrees of added solvent.

What is C2 Tile Adhesive?

C2 is a classification of Tile adhesive. We will explain the C first and then the 2. The C means Cementitious. This means it comes in powder form to which you add water. Powder based tile adhesive does not need air to cure so is perfect to bond our membranes to the wall, as the membranes act as both a water and vapour barrier. Bucket ready tile adhesive needs air to cure and should not be used to bond the membranes to the wall. The 2 in C2 means improved adhesive as apposed to C1 which is normal adhesive. The adhesion test (C) is the most difficult to pass because the adhesive is put through a series of tests, freeze/thaw cycles, water immersion etc and then the bond strengths are measured after 28 days. C1 is greater than 0.5 N/mm2 after all the different cycles and C2 is greater than 1 N/mm2.

If you have any questions about the Classi range of products or need advice on how to effectively waterproof your bathroom, please get in touch.

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