Can be applied to vertical and overhead surfaces. Not for use in delicate electrical and electronic applications in which corrosion of copper, brass, or other sensitive metals is undesirable. Can be used in food contact applications where FDA regulations apply. Reference CDS4319 "Food Contact Applications", "Silicone Rubber Compounds". Tack free time 20mins, 3 to 7 days thorough cure time.RTV 108 (clear) 310ml Rubber Silicone Adhesive Expiry: September 2017. Limited time offer £9.95 per tube.