4 Things To Keep In Mind For Glass Splashback Fitting https://www.ganjingworld.com/n....ews/1h13k757jov2W9Rz flexible sealant like silicone, which will absorb the glass's expansion and contraction without compromising its integrity, is useful for closing such gaps. Additionally, to lessen the likelihood of stress cracks occurring, the glass should not be pressed directly against cabinets countertops, or other rigid surfaces.