Fiberglas™ Thermal Insulating Wool (TIW)

Description

Owens Corning® Fiberglas™ Thermal Insulating Wool (TIW) is a versatile, high-performance insulation material designed to withstand temperatures up to 1,000°F (538°C). Available in two types—TIW Type I-HP (in rolls) and TIW Type II-HP (in batts)—this resilient, non-combustible insulation is ideal for industrial applications, including boilers, vessels, precipitators, and ducts. The inorganic glass fibers are bonded with a thermosetting resin, creating an efficient thermal barrier that is easy to install and highly resistant to corrosion, moisture, and fungi.

Specifications

Material: Resin-bonded inorganic glass fibers
Density:
- Type I-HP: 1.0 pcf (16.1 kg/m³)
- Type II-HP: 2.5 pcf (40.1 kg/m³)
Operating Temperature: Up to 1,000°F (538°C)
Water Vapor Sorption: Less than 5% by weight (ASTM C1104)
Corrosion Resistance:
- Passes ASTM C665 for copper and aluminum
- Passes ASTM C1617 for steel
Fire Ratings:
- Flame Spread Index: 0
- Smoke Developed Index: 0 (UL 723, ASTM E84)
Compressive Strength:
- Type I-HP: Not suitable as a base wool
- Type II-HP: Suitable for metal mesh blankets and heavy-duty applications

Fixtures

Type I-HP: Ideal for lightweight applications like panel systems, flexible wrap, and irregular surfaces. Supplied in rolls for easy handling and installation.
Type II-HP: Suitable for use in metal mesh blankets, boilers, vessels, ducts, and breechings where compressive resistance is required. Supplied in batts.
Installation: Easily installed over welded pins or with wire ties, metal lath, or lagging, with excellent vibration resistance to minimize heat leaks.