GT Smart -Low Glow windscreen repair in action. This slightly tinted grey resin is great for longer cracks and toning down the impacts imperfection post repair. Working with a windscreen repair kit with suffient vacum and presuure will ensure that this low viscocity resin offers the very best windscreen repair outcomes on the most challenging of breaks. Before and after images when using GT Smart windscreen repair kits and Low Glow windscreen repair resins.