... silicon rubber of the rubber cup table pad;2.Soft, smooth, flexible, stain-free and waterproof;3.It can perform very well ... chemically stable, insoluble in any solvents and solutions, in addition to hydrofluoric acid (HF) and strong base, but does not react with any ... strength, good wear resistance.(4) non-deliquescent, non-corrosive and non-soluble in water features, even full of water absorption ...