High Temperature Board

This lightweight insulation board is made from highly resilient, inorganic glass fibers, bonded by high-temperature thermosetting resin. It has a density of 2.8 PCF (44.9 kg/m³).

Applications

High Temperature

Certifications

Product Features

Designed For High Heat

HT Board has a maximum service temperature of 1000° F (538° C), making it a great choice for boiler walls, hot precipitators, hot ductwork, cylindrical tanks, towers, stacks, and industrial ovens.

Lightweight & Flexible

As a lightweight product, HT Board makes fabrication easier. And it’s simple, flat form reduces the need for storage space, helping to reduce operating costs.

Sustainable

HT Board is made with our bio-based ECOSE® binder and is formaldehyde-free. It’s also made with at least 50% recycled glass.

Product Details

Technical Data

TECHNICAL DATA
PROPERTY (UNIT)	TEST	PERFORMANCE
Corrosiveness	ASTM C665	Does not accelerate corrosion of steel
Corrosion	ASTM C1617	Pass
Maximum Service Temperature	ASTM C411	1000° F (538° C)
Mold Growth	ASTM C1338	Pass
Surface Burning Characteristics (flame spread/smoke developed)	ASTM E84, UL 723,	UL/ULC Classified FHC 25/50

Thermal Conductivity k

MEAN TEMPERATURE	K	K(SI)
100° F (38° C)	0.25	0.036
200° F (93° C)	0.33	0.048
300° F (149° C)	0.40	0.058
400° F (204° C)	0.49	0.071
500° F (260° C)	0.57	0.082

Forms Available

FORMS AVAILABLE
THICKNESS	WIDTH	LENGTH
1" (25 mm)	24" (610 mm) and 48" (1,219 mm)	48" (1,219 mm) and 96" (2,438 mm)
1^1/2" (38 mm)
2" (51 mm)
2^1/2" (64 mm)
3" (76 mm)
3^1/2" (89 mm)
4" (102 mm)

All Product Resources

Data Sheet - HT Board

August 2025PDF (847.64 KB)

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UL Environmental Claim Validation - Recycled Content - HT Board

September 2018PDF (606.55 KB)

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GREENGUARD Gold - HT Board

May 2018PDF (741.00 KB)

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GREENGUARD - HT Board

May 2018PDF (730.98 KB)

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UL Environmental Claim Validation - Formaldehyde Free - HT Board

May 2018PDF (607.09 KB)

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Safety Data Sheet - HT Board

October 2020PDF (566.15 KB)

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Safety Data Sheet - HT Board - Canada

October 2020PDF (566.26 KB)

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Revit File - HT Board

December 2022RVT (1.54 MB)

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