What additive can increase the hardness of Polyurethane?
What additive can increase the hardness of Polyurethane?
(OP)
I want to increase the hardness of polyurethane for making parts via injection molding. The material I have is one-component polyester urethane based on an aromatic diisocyanate in granule form. It's hardness is 80 Shore A.
What additive can i mix with the granules to get a harder product after injection molding?
Is there any additive/material that I can use with my granules to harden them by twin screw extrusion/compounding?
What additive can i mix with the granules to get a harder product after injection molding?
Is there any additive/material that I can use with my granules to harden them by twin screw extrusion/compounding?





RE: What additive can increase the hardness of Polyurethane?
Seriously, why not source a harder durometer material?
RE: What additive can increase the hardness of Polyurethane?
Calcium carbonate, talc, mica, wollastonite, silica, barium sulfate etc. etc.
Contact a mineral filler supplier.
Chris
Chris DeArmitt - PhD FRSC CChem
Plastic & Additives Webinars
Instant Downloads & Inexpensive
www.plastictraining.com
RE: What additive can increase the hardness of Polyurethane?
H
www.tynevalleyplastics.co.uk
Why be happy when you can be normal?
RE: What additive can increase the hardness of Polyurethane?
Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
for site rules