ALKAID LCD Light Curing Resin 3D Printer

I had a number of very successful prints, until the FEP was unfortunately punctured. I therefore tried to clean my vat; I used isopropyl alcohol, and the only other substance ever to touch it has been resin. The gasket was sticky to the touch, and one corner snapped off; I did NOT handle it with any degree of force. This seems to be a manufacturing fault with the gasket, as the tank itself is absolutely fine. I would like a replacement gasket; and also would happily purchase a spare vat or two, if the price is reasonable! ( UK )