We would recommend testing on a small area prior to full application if you wish to use this over faux gold leaf. Rust-Oleum Crystal Clear is a quick-drying, non-yellowing, durable clear top coat from Rust-Oleum`s expansive range that seals, protects and enhances painted surfaces including wood, metal, plastics, ceramics and more.

Rust-Oleum Crystal Clear | Rawlins Paints

I've used Andrews Coatings quite a few times over the last few months and their service has always been first class. With this type of product and application we would always suggest a trial which you have already carried out. Provided the tiles are not in a shower enclosure,anotheroption would be Blackfriar Quick Drying Varnish,this would be less likely to react and will be easier to work with.It seals, protects and enhances painted surfaces including wood, metal, plastics, ceramics and more. Rust-Oleum Universal Paint products are designed to be hard wearing and can be used for multiple projects. Our Rust-Oleum furniture paints provide a durable, shock-resistant finish that can be cleaned easily. Rust-Oleum Crystal Clearhas very strong solvents in as do most aerosols and the product is quite likely to attack a freshly applied paint coating. Rust-Oleum Crystal Clear is the UK equivalent of the American product you have seen and will withstand temperatures up to 100°C (dry heat).

Crystal Clear Acrylic Aerosol SAFETY DATA SHEET Crystal Clear Acrylic Aerosol

It's ideal for providing a clear protective coat to many different surfaces and should be perfect for your coasters. So, if it has provided the finish and performance you require, we could see no reason you couldn't use it.

Rust-Oleum Crystal Clearhas some strong solvents in which could attack some types of paint coatings, so we would recommend a test area first to ensure suitability. Some products may be delivered straight to your door from one of our suppliers and these products will be labelled within the product description. A trial will always provide a better insight as to whether the product will be suitable for a particular use than theoretical technical data. For best results whilst spraying keep the can the same distance from the surface and keep the can in motion.