About this document
Polyurethane Foam Discoloration Guide by idonotloveyou is a document available to read on EtoBox.
Polyurethane foams can discolor due to exposure to UV light, heat, oxidation, or certain additives like BHT. UV light causes oxidation reactions that form yellow quinones in the polymer backbone if aromatic isocyanates are used, permanently discoloring the foam. Oxidation from gases like nitrogen oxides or ozone can also cause yellowing. Heat during foam production or use may scorch and discolor the foam internally. While UV and oxidation discoloration cannot be reversed, discoloration from BHT can be rever
- Author
- idonotloveyou
- Language
- EN