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Key Differences Between RockWool Mattress & Resin Bonded Mattress

There is a common misconception that the rockwool LRB mattresses and resin-bonded mattresses are the same and can be used interchangeably. But, it is not the case. Although both are insulation solutions installed in acoustic and high-heat industrial applications, there are some clear differences. Let’s dig deeper into the differences between both insulation mattresses:

No Features Rockwool LRB Mattress Resin Bonded Mattress(RBM)
1 Resin Content Lightly bonded Highly bonded
2 Base Material Used Rockwool Rockwool or glasswool
3 Density 100–150 kg/m³ Usually higher
4 Flexibility High (compressible) Low (more rigid)
5 Temperature Withstanding Capacity Up to 750°C In between 230 to 750°C (depending upon the material)
6 Applications Pipes, vessels, boilers Flat surfaces, load-bearing areas