Modified Dicyclohexylmethane 4,4′ diisocyanate (HMDI) prepolymers
Product codes for HMDI prepolymers begin with the letters IW. The third letter is a C for caprolactone, an E for PTMEG, or a P for polyether polyol. The two digits indicate the target NCO range. If there is a third digit, there are two or more choices for the NCO range. For example, IW-P261 is an HMDI prepolymer that is polyether based with a target NCO of 26%.
PTMEG based HMDI prepolymer
Other grades available are IW-E12 and IW-E20.
Polyether polyol based HMDI prepolymer
Polyester based HMDI prepolymer
Caprolactone based HMDI prepolymer
All urethane products must be tested – including field testing – in advance by the user to determine suitability of the selected product(s) in that application. All information on this website is for general information purposes only. Please contact us or your ITWC sales representative for more information and/or material selection assistance.