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Knauf Pipe and Tank Insulation is a semi-rigid fiber glass board in roll form faced with a factory-applied FSK or ASJ vapor retarder, or a glass mat facing. The glass fibers are adhered perpendicular to the jacketing for flexibility and easy installation.

Knauf Pipe and Tank Insulation is typically used on tanks, vessels and large-diameter pipes. It can be used for any curved or irregular surfaces that require finished characteristics of rigid fiber glass insulation.

Excellent Thermal Properties

• Low thermal conductivity ratings to 850°F (454°C).

Low-Cost Installation

• Flexible.
• Easy to handle and fabricate.

Inventory Savings

• No need to stock multiple sizes.
• Various thicknesses available to meet all your pipe and tank insulation needs.

Resists Damage

• Tough and durable.
• Resists damage in shipment and during and after installation.

Resists Microbial Growth

• Does not promote the growth of fungi or bacteria.
• Will not rot or sustain vermin.

Non-Corrosive

• Will not accelerate corrosion of aluminum, steel or copper.

Specification Compliance

• ASTM C 795
• NRC 1.36
• MIL-I-24244C
• ASTM C 1136
  - Type I, II, III, IV (ASJ)
  - Type II, IV (FSK)
• HH-B-100B (jackets)
  - Type I and II (ASJ)
  - Type II (FSK)
• HH-I-558C; Form A, Class 3

Technical Data

Temperature Range (ASTM C 411)

• Operating Temperature to 850°F (454°C).

Compressive Strength (ASTM C 165)

• Not less than 150 PSF (7.18 kPa) at 10% deformation for 2" (51 mm) thickness.
• Not less than 275 PSF (13.2 kPa) at 10% deformation for 3" (76 mm) thickness.

Water Vapor Transmission (ASTM E 96, Procedure A)

• Both FSK and ASJ vapor retarders have a maximum water vapor transmission rate of .02 perms.

Puncture Resistance (TAPPI Test T803) (Beach Units)

• FSK facing: 25
• ASJ facing: 50

Surface Burning Characteristics

• Does not exceed 25 Flame Spread, 50 Smoke Developed when tested in accordance with ASTM E 84, NFPA 255 and UL 723.

Linear Shrinkage (ASTM C 356)

• Negligible.

Application & Specification Guidelines

Precautions

• ASJ and FSK jackets should not be used if outer-surface temperature exceeds 150°F (66°C)
• During initial heat-up to operating temperatures above 350°F (177°C), a slight odor and some smoke may be given off as a portion of the bonding material used in the insulation begins to undergo and controlled decomposition.
• If natural convection is not adequate in confined areas, forced ventilation should be provided in order to protect against any harmful fumes and vapors that might be generated.
• Care must also be taken when using sealants, solvents, or flammable adhesive during installation.

Storage

• Protect stored insulation from water damage and other abuse.
• Protect from welding sparks and open flame.
• Cartons are not designed for outside storage.

Preparation

• Apply the product on clean, dry surfaces.

Application

For easy installation of Knauf Pipe and Tank Insulation simply follow these guidelines.

• Refer to the Stretch-out Chart (below) to find the appropriate length to cut for the specific pipe size. Be sure to add an additional 2" (51 mm) to 4" (102 mm) for your staple flap.
• Cut your stretch-out length and wrap the material around the iron pipe to ensure the proper fit.
• Staple the lap on 3" (76 mm) centers with outward clinching staples.
• Butt edges shall be firmly secured, and butt strips matching the jacket shall be applied at each joint.