TDI vs MDI in Polyurethane Material | PSI Urethanes Inc., Austin, Tx. Cast Urethane Manufacturers
PSI Urethanes is an industry leader in providing bespoke urethane solutions, from casting all the way down to formula, and your specific application and its performing environment can necessitate a number of decisions in the formula development process.
The beginning of the formula development process involves the choice between TDI and MDI isocyanates. The base urethane polyol bonds at each end with an isocyanate, and a TDI and MDI isocyanate will develop very different properties and characteristics in the final product.
When discussing your polyurethane needs with PSI sales and production consultants, consider the following among the many characteristics of your application:
Will your application involve high, or low, temperatures?
Will your application involve repetitive/sustained compression?
Will your application involve high speed turning, or another action that
might require heat dispersing abilities?
What type(s) of friction will your urethane products experience in their
application?
TDIs
-better high-temperature resistance
-better compression set
-well-suited for repetitive or sustained compression
MDIs
-better low-temperature resistance
-stronger rebound
-well-suited for heat dispersal in applications
PSI associates will consult with you on all the characteristics of your application to determine the right formula for your application, beginning with the choice between TDI and MDI. They take great care to match the right characteristics with your needs, to make sure you get the right product...the first time.
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