PU Type

12. Synthetic Leather

12.1 Substrate Raw Material

12.2 PU Type

12.3 Substrate Formation

12.4 Production Process

12.5 Specialty Application

12.6 Chemistry Certifications

PU Type

The PU Type Production Stage covers the raw material content of the synthetic leather resin. The following process options are available:

  • Leather coating, polyurethane, for synthetic leather is the default selection for Synthetic Leather Example Materials. It should be used unless another process is applicable. This process includes options for 25%, 35%, 45%, 55% and 100% PU. The appropriate substrate-to-PU ratio must be selected. 
  • Leather coating, thermoplastic polyurethane (TPU) should be selected if the resin type of the PU layer is thermoplastic polyurethane. This process includes options for 25%, 35%, 45%, 55% and 100% PU. The appropriate substrate-to-PU ratio must be selected.
  • Haptex non-solvent 2K PU synthetic leather (solvent based top coat) (55% substrate, 45% PU) {BASF} should be selected when using Haptex non-solvent 2K PU (solvent based top coat) from BASF. This process should be combined with the production process “Dry process, Haptex non-solvent 2K PU synthetic leather (solvent based top coat) {BASF}”.
  • Haptex non-solvent 2K PU synthetic leather (water based top coat) (55% substrate, 45% PU) {BASF} should be selected when using Haptex non-solvent 2K PU (water based top coat) from BASF. This process should be combined with the production process “Dry process, Haptex non-solvent 2K PU synthetic leather (water based top coat) {BASF}” 
  • Solvent based PU synthetic leather (45% substrate, 55% PU) {BASF} should be selected when using generic solvent based PU synthetic leather.
  • Water based PU synthetic leather (55% substrate, 45% PU) {BASF} should be selected when using generic water based PU synthetic leather.