Mineral Wool

Mineral wool products inhibit the spread of fires because mineral wool fibers are non-combustible, with melting temperatures in excess of 1900º F. Mineral wool products are useful for more than just fire resistant applications. They also trap air, slowing heat transfer, and like other insulating products available for fabrication and distribution at FSI, mineral wool products reduce air condensation, and act as effective acoustical insulators.

We stock Roxul, Thermafiber, and Fibrex mineral wool batts, bulk fibers, pipes, pipe and tank wraps, and blocks in many different densities, and thicknesses.

Mineral Wool Type: Board Felt Batt

Board

Roxul, Thermafiber, Fibrex - Mineral Wool Board
  • CavityRock®
  • Density: 4.4 pcf
  • Thickness: 1 to 5"
  • R-Value: R-Value/inch at 75° F: 4.2 (hr.ft2.F/Btu) (hr*ft^2*F/Btu).
  • Characteristics: semi-rigid, vapor permeable, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • CurtainRock®
  • Density: 4 pcf
  • Thickness: 1 to 6"
  • Continuous Use Limit: 1200º F (650º C)
  • Characteristics: semi-rigid, vapor permeable, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • DrainBoard®
  • Density: 8 pcf
  • Thickness: 1 to 2.38"
  • R-Value: R-Value/inch at 75° F: 4.2 (hr.ft2.F/Btu) (hr*ft^2*F/Btu).
  • Characteristics: semi-rigid, vapor permeable, non-combustible, fire, moisture, and fungi resistant.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Fibrex® FBX 1210
  • Thickness: 1 to 5"
  • Continuous Use Limit: 1200º F (649º C).
  • Applications: boilers, precipitators, ducts and mechanical equipment.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Fibrex® FBX 1212
  • Thickness: 1 to 5"
  • Continuous Use Limit: 1200º F (649º C).
  • Applications: boilers, precipitators, ducts and mechanical equipment.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Fibrex® FBX 1240
  • Thickness: 1 to 6"
  • Continuous Use Limit: 1200º F (649º C).
  • Applications: boilers, precipitators, ducts and mechanical equipment.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Fibrex® FBX 1260
  • Thickness: 1 to 4"
  • Continuous Use Limit: 1200º F (649º C).
  • Applications: boilers, precipitators, ducts and mechanical equipment.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Fibrex® FBX 1280
  • Thickness: 1 to 4"
  • Continuous Use Limit: 1200º F (649º C).
  • Applications: boilers, precipitators, ducts and mechanical equipment.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Thermafiber® K-FAC 19
  • Thickness: .5 to 4"
  • Density: 18.5 pcf
  • Maximum Temperature Application: 1900º F (1037º C).
  • Characteristics: nonabsorbent, corrosion-resistant, fire resistant.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RHT® 40
  • Density: 4 pcf
  • Thickness: 1.5 and 6"
  • Continuous Use Limit: 1200º F (650º C).
  • Applications: storage tank insulations, drying/oven equipment, petro-chemical and power generating equipment protection.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RHT® 60
  • Density: 6 pcf
  • Thickness: 1 and 5"
  • Continuous Use Limit: 1200º F (650º C).
  • Applications: storage tank insulations, drying/oven equipment, petro-chemical and power generating equipment protection.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RHT® 80
  • Density: 8 pcf
  • Thickness: 1 and 5"
  • Continuous Use Limit: 1200º F (650º C).
  • Applications: storage tank insulations, drying/oven equipment, petro-chemical and power generating equipment protection.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RHT® 100
  • Density: 10 pcf
  • Thickness: 1 and 4"
  • Continuous Use Limit: 1200º F (650º C).
  • Applications: storage tank insulations, drying/oven equipment, petro-chemical and power generating equipment protection.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RHT® 120
  • Density: 12 pcf
  • Thickness: 1 and 4"
  • Continuous Use Limit: 1200º F (650º C).
  • Applications: storage tank insulations, drying/oven equipment, petro-chemical and power generating equipment protection.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RockBoard® 35
  • Density: 3.5 pcf
  • Thickness: 1 to 4"
  • Continuous Use Limit: 1200º F (650º C).
  • Characteristics: all purpose board, semi-rigid, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RockBoard® 40
  • Density: 4 pcf
  • Thickness: 1 to 6"
  • Continuous Use Limit: 1200º F (650º C).
  • Characteristics: all purpose board, semi-rigid, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RockBoard® 60
  • Density: 6 pcf
  • Thickness: 1 to 4"
  • Continuous Use Limit: 1200º F (650º C).
  • Characteristics: all purpose board, semi-rigid, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • RockBoard® 80
  • Density: 8 pcf
  • Thickness: 1 to 5"
  • Continuous Use Limit: 1200º F (650º C).
  • Characteristics: all purpose board, semi-rigid, non-combustible, fire, moisture, and fungi resistant, and sound absorbent.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Thermafiber® Industrial Board
  • Thickness: 1 to 6"
  • Density: 4 - 12 pcf
  • Continuous Use Limit: 1200º F (649º C).
  • Characteristics: non-combustible, fire resistant, doesn't wick moisture, promote corrosion, or conduct electricity.
  • Order Request: (708) 876-2626, Email, or Form Request
Data Sheet Data Sheet (pdf) MSDS MSDS (pdf)
  • Mineral Wool Board
  • CavityRock®MSDSData Sheet
  • CurtainRock®MSDSData Sheet
  • DrainBoard®MSDSData Sheet
  • FBX 1210MSDSData Sheet
  • FBX 1212MSDSData Sheet
  • FBX 1240MSDSData Sheet
  • FBX 1260MSDSData Sheet
  • FBX 1280MSDSData Sheet
  • K-FAC 19MSDSData Sheet
  • RHT® 40 IndustrialMSDSData Sheet
  • RHT® 60 IndustrialMSDSData Sheet
  • RHT® 80 IndustrialMSDSData Sheet
  • RHT® 100 IndustrialMSDSData Sheet
  • RHT® 120 IndustrialMSDSData Sheet
  • RockBoard™ 35MSDSData Sheet
  • RockBoard™ 40MSDSData Sheet
  • RockBoard™ 60MSDSData Sheet
  • RockBoard™ 80MSDSData Sheet
  • Thermafiber Industrial BoardMSDSData Sheet

Felt & Batt

Roxul, Thermafiber, Fibrex - Mineral Wool Felt & Batt
  • Roxul® AFB
  • Density: 2.8 pcf
  • Thickness: 1 to 6 inches
  • R-Value: R-Value/inch at 75° F: 4.2 (hr.ft2.F/Btu) (hr*ft^2*F/Btu)
  • Common Applications: wall/floor systems that need effective acoustical performance and fire resistance.
  • Characteristics: semi-rigid, vapor permeable, non-combustible, fire, and moisture resistant.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Thermafiber® K-FAC SR
  • Thickness: 1 to 4"
  • Density: 14 pcf
  • Continuous Use Limit: 1900º F (1037º C).
  • Common Applications: high heat ovens, precipitators, firedoor cores, and furnaces.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Thermafiber® Felt
  • Thickness: 1 to 3"
  • Density: 3 - 12 pcf
  • Common Applications: thermal, fire protection, and acoustical, as well as, OEM production, refractory, marine, electrical applications.
  • Order Request: (708) 876-2626, Email, or Form Request
  • Mineral Wool Felt
  • K-FAC SRMSDSData Sheet
  • Thermafiber Industrial FeltMSDSData Sheet
  • Mineral Wool Batt
  • Roxul® AFBMSDSData Sheet
FSI carries all of the major mineral wool materials. Please contact us if you require a material not featured on our website.