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The Main Difference Between Rubber Insulation Material And PEF Plate.

Zhangjiagang Sansu Machine Co.,Ltd | Updated: Apr 11, 2018

PEF is made of polyethylene, and the rubber insulation material is made of butyl rubber and polyvinyl chloride.

1. Different materials,PEF is low density polyethylene,NBR is the butyl rubber.

2. Production process is different. PEF to secondary foaming molding. NBR continuous foaming. And the expansion ratio is different, NBR higher. Different surface heat transfer coefficient, NBR higher. Wet resistance factor is different. NBR higher. Because its surface has a layer of skin.

3. The flame retardant performance is different, and PEF is divided into class B1 and B2. The NBR is class B1.

4. The cost of NBR is high.PEF is 800 yuan per cubic meter (board)--1200 yuan (pipe).NBR is 1200 to 1600 yuan per cubic meter (regardless of board tube). If you want to increase the cost, please use it to form insulation at one time,U214 :)

5.PEF is suitable for air duct,NBR is suitable for water pipes. Because PEF is hard, it is quite good, and the air duct that comes out is more stylish and good-looking.

The water pipes are just the opposite.