Polyguard Products Inc., Ennis, Texas, updated its Vaporguard vapor barrier tape installation product datasheet to include information on vapor stops and ammonia system terminations. Vaporguard is a non-curing elastomer used as a vapor stop on sub-freezing insulation systems.

 The company has also added the Dow Styrofoam XPS Billet line of insulation to its product offerings. For additional information, call (800) 486-9865.