GF - THERMO 12 GOLD
Pipe & Block Insulations

Silicato de Calcio

Description
GF- Thermo 12 Gold is a molded, high temperature, abuse-resistant pipe and block insulation with exceptional structural
strength, composed of hydrous calcium silicate for use on systems operating up to 1200°F (649°C). The gold color provides
positive identification that it is asbestos-free.
GF- Thermo 12 Gold meets or exceeds the physical property requirements of ASTM C 533, Type I.

Applications
Because of its strength, low thermal conductivity and durability, it is the preferred product for application on high temperature
piping and equipment. GF- Thermo 12 Gold is especially recommended for use in the power generation process industries where pipe and equipment operate up to 1200°F (649°C).
GF- Thermo 12 Gold will not burn and may be used for the fire protection of piping and equipment.

Advantages
• Superior resistance to breakage and physical abuse during shipping, fabrication and installation.
– Compressive strength: 160 psi (1103 kPa)
– Flexural strength: 70 psi (483 kPa)
• Fast, easy installation
• Reuseable after maintenance
• Large selection of sizes and forms
• Noncombustible

 

GF- Thermo 12 Gold pipe insulation is 36" (914 mm) in length, and is available in thicknesses from 1" to 3" (25 mm to 76 mm) in 1/2" (13 mm) increments. For thickness requirements greater than 3î (76 mm), factory glued, double layer is available for thicknesses up to 6î (152 mm).
GF-Thermo 12 Gold block insulation is 12" (305 mm) wide and 36" (914 mm) in length, and is available in thicknesses from 1" to 41/2" (25 mm to 114 mm) in 1/2" (13 mm) increments. Non-standard widths of 18", 24" and 36" (457 mm, 610 mm and 914 mm) are available on request on a Special Product Price Inquiry (SPPI).

Operating Temperature Limit: 1200°F (649°C)

Fire Safety
Surface Burning Characteristics. When tested in accordance with ASTM E 84, NFPA 255, and UL 723, GF-Thermo 12 Gold has a flame spread/smoke developed of 0/0.
Noncombustible. GF-Thermo 12 Gold is noncombustible as tested in accordance with ASTM E 136 (Mesa Plant Only), USCG 164.009.
Hot Surface Performance. GF-Thermo 12
Gold passes ASTM C 411 to 1200°F (649°C).

 

 

Physical Properties Per ASTM C 533, Type I*
Density (dry) Average - 14.5 lbs. per cu. ft.
ASTM C 302 - (232 kg/m3)
Flexural Strength - 70 psi (483 kPa)
ASTM C 203
Compressive Strength - 160 psi (1103 kPa)
ASTM C 165 - to produce 5% compression
Abrasion Resistance - After first 10 min. -10 (% weight loss by tumbling) - After second 10 min. - 20
ASTM C 421
Linear Shrinkage - < 2.0% after 24-hr.
ASTM C 356 - soaking period at 1200°F (649°C)
Max. Service Temperature - 1200°F (649°C)
ASTM C 411
Surface Burning Characteristics - Flame Spread - 0
ASTM E 84 Smoke - Developed - 0

*Actual test results per applicable ASTM test method.

Specification Compliance
ASTM C 533, Type I
ASTM E 136 (Noncombustible [Mesa Plant Only])
ASTM C 795
MIL-I-24244
MIL-I-2781F to 1200°F (649°C) [Pipe]
MIL-I-2819F Class 2 to 1200°F (649°C) [Block]
U.S. Coast Guard Certificate of Approval 164.009/ 77/0
NRC 1.36
Canada: CGSB 51.2-M88; CCG 100/F1

Government Certification
When ordering material to comply with any government specification or any other listed specification, a statement of that fact must appear on the purchase order. Government regulations and other listed specifications require specific lot testing, and
prohibit the certification of compliance after shipment has been made. There may be additional charges associated with
specification compliance testing. Please refer to price page A-II-4 for Certification details and charges.

ISO 9000 Certification (Mesa Plant Only)

Johns Manville mechanical insulation products are designed, manufactured, and tested in our own facilities, which are certified and registered to stringent ISO 9000 (ANSI/ASQC 90) series quality standards. This certification, along with regular, independent third-party auditing for compliance, is your assurance that Johns
Manville products deliver consistent high quality.

The physical and chemical properties of Thermo-12® Gold Pipe and Block Insulation represent typical, average values obtained in accordance with accepted test methods and are subject to normal manufacturing variations. They are supplied as a technical service and are subject to change without notice. Any references to numerical flame spread or smoke developed ratings are not intended to reflect hazards presented by these or any other materials under actual fire conditions. All Johns Manville products are sold subject to Johns Manville’s Limited Warranty and Limitation of Remedy.

 

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