What is the difference between a rock wool sandwich panel, an EPS sandwich panel and a polyurethane sandwich panel?
Three kinds of materials, rock wool for the fire, EPS for the waterproof, polyurethane for fire, polyurethane should be more expensive.
1, different fire rating: Yanmian sandwich panels for the A-level, EPS for the B3-class, polyurethane B1 level.
2, different insulation properties: the three polyurethane sandwich panels the best.
3, waterproof performance is different: the three polyurethane and EPS better than rock wool.
4, the density is different: rock wool bulk density is generally 120KG / cubic meter, EPS is generally 16, polyurethane is generally 40.
All in all, the overall performance of polyurethane sandwich panels for the best, is the best choice for steel structure enclosure!
