PVC/NBR rubber-plastic foam heat preservation material is an environment type product produced with our fully automatic production line based on the most advanced technology introduced by our company from abroad. The main features of the product are closed-cell foam structure, low coefficient of heat conductivity; It has excellent heat insulation effect and can reduce power consumption; The closed-cell foam structure and compact coat makes it hard for vapor to permeate and makes low water absorbability; The product is flexible and this greatly facilitates construction and installation; The product looks elegant and clean; With wide range of applicable temperature (-40°C to 120°C ) and good weather resisting property, the product is durable; Unique fire retardant formulation makes the material have excellent fireproof and fire retardant effect. Owing to its excellent general properties the product has found wide application in construction, light and textile, pharmaceutical, chemical, metallurgy and shipbuilding industries etc. The product is largely used on water and refrigerant tubing/ pipelines of air conditioning system for cool preservation (to prevent moist) and heat preservation (to avoid heat loss), which has obtained ideal result of application.