Other applications hf-1568 aliphatic polyisocyanate (hdi trimer) used in automotive original paint, automotive repair, transportation, industrial products and plastic finishing model hf-1568 type aliphatic polyisocyanate (hdi trimer) apply used as a curing agent component in l... 11/15352automotive repair HF-1568 Aliphatic polyisocyanate (HDI trimer) Used in automotive original paint