Den Braven Silicone-NM is a plasticiser free, neutral and durable elastic silicone sealant for connection joints between natural stone and other strong absorbing substrates, which reduces the risk of edge soiling and staining on the substrates to a minimum. Silicone-NM bonds perfectly without a primer on most substrates and has excellent resistance to UV, water, moisture and the weather. With neutral curing properties, it is virtually odourless and mould resistant.