MDI or Isocyanate chemicals, also known as black chemicals, are curing chemicals often combined with white Polyols chemicals to create Polyurethane foam (PU foam) commonly used in the field of heat and sound insulation construction,...

Polyols, also known as white chemicals, are one of two materials that create Polyurethane foam (PU foam) commonly used in the field of construction of heat insulation, sound insulation, insulation, fire spread prevention, ...