Great sealant spreader spatula for edge finishing in silicone, grout, adhesive, acrylic or joints. Manufactured from durable engineering grade nylon plastic with ends made of thermoplastic rubber (TPR). Spreaders on both ends means we've got you covered for straight, angled or curved edge joints. Achieve clean profiles and permanent seals. No longer necessary to use a release agent (soapy water) The finish is a hassle free, clean job providing a professional result. The TPR material is useable on rough or smooth surfaces with no need to dampen the surface or for any tricky pre-masking to contend with.