Sealants, Mastics, Adhesives and Tapes
Mastics are used as outer coatings over insulation and/or as sealants in the joints of insulation used in cold & cryogenic applications. The choice of which mastic or sealant to use will be influenced by a number of factors including the type of insulation to be sealed or coated, the type of service being insulated, hot, cold, cryogenic, and local environmental conditions.
Mastic coatings are often reinforced with No 10 open weave glass cloth.
Spray-TAC adhesive was originally developed by Grayling to secure plastic sheeting together in the asbestos removal business. This product is now used extensively by laggers for on-site facing of insulation materials & preliminary fixing of insulation.