I am preparing polyester polyol based rigid polyurethane foam. After casting, its outer skin peels off. How can I get shiny, hard and uniform surface?

I am working on polyester polyol based rigid polyurethane foam. I am trying to develop a polyol using castor oil after transamidation with diethanolamine. When I react this polyol with pMDI and...

25 September 2021 1,412 7 View