Hitherm

HiTHERM, LLC. is an industry leader and has been maintaining and setting the standards for polyiso insulation performance since it's opening in 2000. HiTHERM is a California based company dedicated to the manufacturing of polyurethane (PUR), polyisocyanurate (PIR) and polyurea products, the two primary products being our HT-300 brand polyisocyanurate and the HT-450 high temperature polyisocyanurate. HiTHERM's principles have been in the industry for over thirty years and have the knowledge and experience to keep HiTHERM on the leading edge of polyiso insulation manufacturing.