changing durometer of polyurethane
changing durometer of polyurethane
(OP)
My company manufactures flexible tubes. The tube jacket is polyurethane. Its durometer is 80A. We would like to soften the durometer of the jacket to render the tube more flexible and reduce bending stiffness.
Changing the durometer of polyurethane tubing from 80A to something lower, how can this be accomplished?
Thanks.
Changing the durometer of polyurethane tubing from 80A to something lower, how can this be accomplished?
Thanks.





RE: changing durometer of polyurethane
RE: changing durometer of polyurethane
Changing the polyol and/or changing the isocyante composition will change the hardness.
Depending on your jacket reuirement and how much decrease in hardness you desire, there are three variables to manuveur: polyol(s), isocyantes, processing temperature.