3/4 in x 12 in x 12 in Calcium Silicate High Temperature Insulation MPN:684698
3/4 in x 12 in x 12 in Calcium Silicate High Temperature Insulation
Protect your high-temperature equipment with Johns Manville's 3/4 in x 12 in x 12 in Calcium Silicate High Temperature Insulation. This rigid board insulation provides excellent thermal performance and durability in temperatures up to 1,700°F. With a minimal water vapor absorption rate, it resists degradation and maintains its R-value over time. Suitable for use in industrial applications such as kilns, furnaces, and boilers, this insulation also meets various industry standards, including ASTM and UL. Its compact size and flexibility make it easy to install, ensuring a reliable and efficient thermal solution for demanding environments.
Top product features:
- High Temperature Insulation for use in extreme heat applications up to 1,700 Degrees F
- Closed-cell foam structure provides minimal water vapor absorption
- Thickness of 3/4 in provides an R Value of 0.77 for thermal insulation
Top product applications:
- High Temperature Insulation for Industrial Furnaces
- Insulation for Commercial and Residential Fireplaces
- Insulation for Kilns and Furnaces in the Ceramic and Glass Industry
High Temperature Insulation, Density 55 lb/cu ft, Facing Material Unfaced, Flexibility Not Applicable, Foam Cell Type Closed, Form Board, Insulation Color White, Insulation Material Calcium Silicate, Maximum Operating Temperature 1,700 Degrees F, Minimum Operating Temperature 0 Degrees F, Overall Length 12 in, Overall Width 12 in, R Value 0.77, Thickness 3/4 in, Standards ASTM C656, C795, E119, E136, E72, E84, NFPA251, UL 1479, UL 1709, UL 263, Water Vapor Absorption Minimal
Additional Information
- Country of Origin: US
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 270 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 14.94
- Package Width: 12.88
- Package Height: 1.62
- Package Weight: 7.00
Product info last updated on February 18, 2026 6:38pm UTC
Category: Heating Equipment