Class one rubber insulation pipe is excellent rubber-plastic foaming material, the main raw materials are NBR and PVC. it is widely used in medium pipeline of center air-conditioner, vehicle and shipping, chemical and medical industrial, getting the effect of reduce the cold and heat losing.

   it has closed cell structure, and it is lower thermal conductivity, moisture resistance, superior combustion-proof, outstanding aging resistance, and easy installation.

   Parameters as following:

   Surface density: 40-65 kg/m3

   Burning grade:    B1

   Oxygen exponent:  >32%

   Smoke density:     <75%

   Smoke poison:  ZA3

   Heat conductivity coefficient:          < 0.033 W/(m.k)  when it is -20 centigrade  

                                                       <0.035  W/(m.k)  when it is 0 centigrade

                                                       <0.040  W(m.k)   when it is 40 centigrade

   Moisture resistance:   > 450

   Water absorption in vacuum: <10%

   Dimension stability:  <10%

   Rebound rate after compression:    >70%

   Ripping intension:     >2.5 N/cm

   Ozone endurance:    No chaps

   Aging resistance:     No wrinkle, no crack, no pinhole, no distort

   Temperature apply range:   from -40 to 105 centigrade