For the past year we have been developing a new surface treatment and protection for our Protium Polished Acrylic Products. We wanted to deal with the common issues which can occur with acrylic from over tightening and exposure to alcohol, strong cleaning agents and solvents. Of course, we do not recommend any customer to do any of the above to our products as it will void warranty, but resistance is now greatly increased with our new surface protection and strengthening. Products with this new feature will have a sticker on the box with ‘Acrylic Surface Protection’. If your purchase did not come with this, please do not worry, this is just us going above and beyond to create the best products we can. We also fully stand behind our products with industry leading support and warranty.