Ideal for sills, valances and vehicle underbody. Tough acrylic formulation reduces the need for re-painting. High build protective coating. Resistant to salt, humidity and stonechips. Fast drying. Overpaintable with Hycote colour match finish … Excellent adhesion to avoid sagging and runs… Hycote stoneguard has been specially formulated to provide an extra durable coating on sills valances and other body panels to protect against stone chip damage and corrosion from minor scratches.