Shanghai Dongda Polyurethane Co., Ltd.  

 DonPipe 301 is a type of blend polyols with water as blowing agent, which is specially researched for rigid PUF to produce thermal insulation pipes .It is widely used in steam pipes, liquefied nature gas running pipes, oil pipes and other fields.The characteristics are as follows: 
(1)good flowability
(2)high temperature-resistance performance,long standing in 150?
(3)excellent low temperature dimensional stability

Appearance	Light yellow to brown transparent liquid
Hydroxyl value            mgKOH/g	250-450
Dynamic viscosity?25??   mPa.S	300-600
Density    ?20??         g/ml	1.10-1.16
Storage temperature           ?	10-25
Storage stability             month	6