Insulation Type (Required)

• Material: Flexible fibreglass insulation blanket
• Facing: Unfaced or compatible industrial facing
• Form: Blanket insulation suitable for cutting and wrapping

Rigid insulation, foam insulation, or spray‑applied insulation is not recommended for use with EZRAP™ wrap‑only products.

Minimum Insulation Thickness

• Minimum required thickness: 1 in (25 mm) fibreglass blanket

This minimum thickness aligns with standard industrial removable insulation practices and provides effective condensation control and heat‑loss reduction for most low‑ and medium‑temperature applications.

Thermal Performance (Reference)

• Maximum thermal conductivity (k‑factor): 0.26 or lower
• Typical k‑factor reference: 0.26 at 75 °F (24 °C)

Lower k‑factor values indicate better insulating performance.

Fire Performance (Reference)

When fire performance is required, insulation should meet:

• Flame spread: ≤ 25
• Smoke developed: ≤ 50
• Test method: ASTM E84

Actual system fire performance is dependent on insulation selection, thickness, and installation.

High‑Temperature & Thick Insulation Applications

For fittings where:

• Operating temperature exceeds 250 °F (121 °C), and
• EZRAP products to be used are made from DuPont Tychem™, or
• Total insulation thickness exceeds 1.5 in (38 mm)

Use multiple layers of fibreglass blanket insulation beneath the EZRAP™ wrap to achieve the required thickness and performance.

Multiple layers may be stacked to achieve:

• Increased thermal resistance
• Improved temperature control
• Better system durability

For elevated-temperature applications or where insulation thickness greater than 1 in (25 mm) is required, consider using FR / FR+ systems to achieve required thermal performance.

Cutting & Installation Guidelines

• Cut insulation to fully wrap the valve, union, or service point + a minimum overlap of 1”
• Ensure insulation fits snugly without compression gaps
• Butt or overlap insulation joints as required for full coverage
• Avoid leaving exposed metal surfaces beneath the wrap

EZRAP™ wraps are designed to compress slightly to accommodate insulation while maintaining a clean outer finish.

Cutting Reference

Use the EZRAP™ cutting charts below to determine:

• EZRAP Size = Required insulation width
• Wrap length = Required insulation length

Important Notes

• Insulation performance is based on manufacturer‑published data
• Final system temperature rating is governed by the lowest‑rated component
• Installer is responsible for verifying insulation suitability for the application