This is a cache of https://www.owenscorning.com/en-us/insulation/products/no-wrap-pipe-insulation. It is a snapshot of the page as it appeared on 2026-09-17T08:30:11.793+0000.
No-Wrap Fiberglas™ Pipe <strong>insulation</strong> | Owens Corning <strong>insulation</strong>

Owens Corning® No-Wrap Fiberglas™ Pipe insulation is molded of heavy-density resin-bondedheavy density resin bonded inorganic glass fibers. It comes  that come in one-piece, 36" (914mm) long, hinged sections. 

Designed for field installation, No-Wrap allows for jacketing to be applied based on the vapor control, damage, or corrosion resistance requirements of the application. The fiberglass insulation is tailored to fit for copper, iron, PVC, and other polymer pipe applications.

Features of No-Wrap Fiberglass Pipe insulation:

  • Flexible and rigid core options support a tailored fit across pipe sizes
  • Handles high-temp pipe insulation applications up to 1,000°F with proper use
  • Moisture-resistant and corrosion-resistant for long-term performance
  • Non-combustible fiberglass insulation with 0 flame spread and smoke ratings
Download HVAC Piping Guide Spec
Download Plumbing Piping Guide Spec

Specifications & Literature

Performance Attributes

Owens Corning® No-Wrap Fiberglas™ pipe insulation is designed for applications that require flexible, field-applied jacketing systems. The fiberglass insulation core delivers reliable thermal performance and long-term durability across a wide temperature range, including high-temperature pipe insulation applications. One-piece, hinged sections support efficient installation and handling in the field. By allowing jacketing to be selected based on application requirements, this no-wrap pipe insulation supports moisture control, mold and mildew resistance, and flexible solutions for mechanical protection.

Durability

Easy Installation

Mold and Mildew Resistance

Technical Information

Physical Properties

Property

Test Method

Value

Density (size dependent)

ASTM C302

3.5 to 5.5 pcf

Operating Temperature Range1

ASTM C411

0oF to 1,000oF (-18oC to 538oC)

Water Vapor SorptionASTM C1104Less than 5% by weight

Corrosion to Steel

ASTM C1617

Meets Requirements

Surface Burning Characteristics2

UL 723, ASTM E84 or CAN/ULC-S102

Flame Spread 0
Smoke Developed 0

1 With heat-up schedule when operating temperatures between 850°F - 1000°F.
2The surface burning characterisitcs of these products have been determined in accordance with UL 723, ASTM E84, and CAN/ULC - S102. Values are reported to the nearest 5 rating. 

STANDARDS, CODES COMPLIANCE

  • ASTM C547, Mineral Fiber Pipe insulation, Types I, Grade A
  • ASTM C585, Inner and Outer Diameters of Thermal insulation for Nominal Sizes of Pipe and Tubing
  • ASTM C795, Thermal insulation for Use in Contact with Austenitic Stainless Steel 3
  • Nuclear Regulatory Commission Guide 1.36, Non-Metallic Thermal insulation 3
  • MIL-PRF-22344E, insulation, Pipe, Thermal, Fibrous Glass
  • MIL-DTL-32585, Type I, Form 4, Facing A
  • MIL-DTL-24244D (Ships) insulation Material with Special Corrosion, Chloride, and Fluoride Requirements 3
  • US Coast Guard 164.109/70/0 Non-Combustible
  • NFPA 90A and 90B

3Preproduction qualification testing complete and on file. Chemical analysis of each production lot required for total conformance. Certification needs to be specified at time of order.

Applications

  • Heat Transfer Fluid Systems
  • Hydrocarbon Processing Systems
  • Pipe and Equipment
  • Pipe and Equipment > Equipment
  • Pipe and Equipment > Equipment > High Temp/Above Ambient Equipment
  • Pipe and Equipment > Equipment > Low Temp/Below Ambient Equipment
  • Pipe and Equipment > Equipment > Mechanical Equipment
  • Pipe and Equipment > Equipment > Mechanical Room
  • Pipe and Equipment > Equipment > Ovens, Boilers, and Furnaces
  • Pipe and Equipment > HVAC and Utility Piping
  • Pipe and Equipment > HVAC and Utility Piping > Air Ducts
  • Pipe and Equipment > HVAC and Utility Piping > Air Shafts
  • Pipe and Equipment > HVAC and Utility Piping > Sewage Lines
  • Pipe and Equipment > HVAC and Utility Piping > Sprinkler Systems
  • Pipe and Equipment > Process Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > Ambient Piping (Freeze Protection)
  • Pipe and Equipment > Process Piping > Above Ground Piping > Commercial Piping and Ductwork
  • Pipe and Equipment > Process Piping > Above Ground Piping > Cyclical Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > Heat Transfer Fluid Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > High Temp/Above Ambient Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > Load-Bearing Pipe Supports
  • Pipe and Equipment > Process Piping > Above Ground Piping > Low Temp/Below Ambient Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > Steam and Chilled Water Piping
  • Pipe and Equipment > Process Piping > Above Ground Piping > Steam and Chilled Water Piping > Data Centers
  • Pipe and Equipment > Process Piping > Direct Buried, Trench, or Underground Piping
  • Piping
  • Piping > Steam and Chilled Water Piping
  • Piping > Steam and Chilled Water Piping > Steam & Hot Water Piping

Contact Us

Even though we're a global company, we're always ready to answer your questions. Call to speak with an Owens Corning representative.