CISBOND-VB30SR Vapor Barrier, self-reinforced, flexible Coating is ideal for applications in the thermal insulation industry as a weather & vapor barrier coating for internal and external insulated piping, equipment and air conditioning ducting. CISBOND-VB30SR is specially designed to protect small diameter elastomeric various pipe insulation, where lagging fabrics are hard to inbuilt. It is easily applied by brush to provide a durable and flexible, UV, water and fungal resistant finish over a wide service temperature range.