ROUNDIT® THERM-B

Operating temperature from -60ºC to +260ºC (-76ºF to +500ºF)

Fire protection of wire harnesses according to ISO 2685: up to 15 min at +1100°C (+2012ºF)

Excellent cut-through and abrasion resistance

Halogen-free

Ideal for reworking components without disconnecting them

Water repellent

FUNCTION:

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  • Product Description

    ROUNDIT® Therm-B is a multi-layer thickwall sleeving with a water repellent treatment designed for thermal protection and maintenance of wire and cable bundles. Its 100% covering ratio provides excellent cut-through and abrasion resistance.

    The construction of ROUNDIT Therm-B ensures an excellent fire protection for wire harnesses up to +1100°C (+2000°F) for 15 minutes according to ISO 2685 specification.

    The self-wrapping design allows for quick and easy installation and removal of the product for assembly and maintenance. This design also accommodates break-out areas and provides ease of removal when inspection or maintenance of cables is necessary.

    As an additional benefit, ROUNDIT Therm-B is available in a range of sizes to accommodate a variety of cables and wire diameters.

    Closure of the product is secured with a fire resistant lacing tape NT-40 withstanding 15 min at +1100°C (+2000°F) in compliance with ISO 2685.

    ROUNDIT Therm-B is primarily used in the aircraft industry.

  • Datasheet Downloads
  • Sizes / Availability

    Product Specifications

    Commercial Part Number
    Nominal Size
    mm (in)
    Size Range
    mm (in)
    Maximum Weight
    g/m (lbs/ft)
    Standard Packaging
    m (ft)
    ROUNDIT Therm-B 10-5
    10 (0.39”)
    5 - 10 (0.20” - 0.39”)
    360 (0.241)
    15 (49')
    ROUNDIT Therm-B 16-5
    16 (0.63”)
    10 - 16 (0.39” - 0.63”)
    495 (0.331)
    15 (49')
    ROUNDIT Therm-B 23-5
    23 (0.91”)
    16 - 23 (0.63” - 0.91”)
    580 (0.388)
    15 (49')
    ROUNDIT Therm-B 32-5
    32 (1.26")
    23 - 32 (0.91” - 1.26”)
    710 (0.475)
    15 (49')

    Part Numbering System

    Example



    Product Name
    Size
    Color
    Quantity
    ROUNDIT Therm-B
    10
    5 (green)
    15m
  • Installation Tools

    As an added benefit, the patented ROUNDIT® Tool will help improve installation time and is designed to install ROUNDIT® products on cable and wire configurations.

  • Product Testing

    Performance Data - ROUNDIT® Therm-B

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    Property
    Test Method
    Result
    PHYSICAL
    Operating Temperature Range
    -60ºC (-76°F) to +260ºC (500°F)
    Fire Resistance
    ISO 2685 up to 15 min at +1100°C
    Wire harness diameter 10 with ARINC pairs, monofilaments,
    twisted pairs and twisted shielded pairs down to #24*

    24h preliminary fluid immersion in:
    Jet fuel (F34 JP8)
    Hydraulic fluid (Skydrol Hyjet IV)
    Lubricating oil (0-156)

    *Speced list available upon request.
    No loss of resistance of insulation below 10 kΩ
    Flammability/Smoke Density/Toxicity
    FAR 25 § 853 12 s
    Conforms
    Water Repellent
    EN 6059 Part 305
    Pass
    MECHANICAL
    Abrasion Resistance
    EN 6059 Part 403
    Pass
    Dynamic Cut-through
    EN 6059 Part 405
    Pass
    Vibration
    EN 6059 Part 406
    Pass
    CHEMICAL
    Fluid Resistance
    – Jet Fuel: JP-5 (Otan 144)
    – Hydraulic Fluid (Skydrol 500B4)
    – Mineral Oil (MIL-L-7870A)
    – Synthetic Oil (MIL-L-23699)
    – Cleaning Fluids (MIL-L-87936)
    – De-icing Fluid (MIL-A-8243)
    EN 6059 Part 303

    Good resistance
    Good resistance
    Good resistance
    Good resistance
    Good resistance
    Good resistance
    Mold Growth
    EN 6059 Part 306
    Pass

    All numeric performance data shows average or typical values. Please consult your sales representative for product drawings, test reports and OEM approvals.