Menu
Menu
Your Cart

50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)

50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)
50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)
50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)
50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)
50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)
Our ratings on 25-11-2025:
Google My Business Reviews
4.8 out of 5
Show other thicknesses

50mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 9)

Length: 1200mm
Width: 450mm
Thickness: 50mm
Pack Quantity: 9
Board Coverage: 0.54m2
Pack Coverage: 4.86m2
Thermal Conductivity: 0.021W/mK
R-Value: 2.35m2K/W
Compressive Strength: 100kPa
Fire Rating (Reaction to Fire): B(Class 0)

50mm Unilin Safe-R SR/CW Phenolic Foam Insulation Board is a superior performance rigid partial fill cavity insulation board with enhanced fire performance, consisting of an Euroclass D-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/CW is faced with low emissivity aluminium facings both sides, and has a thermal conductivity as low as 0.020W/mK.

Note: This product was formerly known as 50mm Xtratherm Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board

APPLICATION
  • For partial fill cavity insulation
CHARACTERISTICS
  • Superior performance phenolic foam,
  • Provides the most efficient U-values with minimal thickness,
  • Effective thermal and fire performance,
  • Low smoke obscuration,
  • Low risk fire rating - Euroclass D-s1, d0,
  • For new build or refurbishment,
  • Rot proof and will remain effective for the life span of the building,
  • Can be readily cut using a sharp knife or fine toothed saw.
CERTIFICATION

    Brand: Unilin (prev. Xtratherm) Model and Size: 1200x450mm - 2.16m2
    Delivery Time: 1-3 working days
    150mm Unilin ECO360/CT CavityTherm Full Fill Cavity Wall  board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin ECO360 CT board reduces the junctions prone to ..
    Get Best Price
    32.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (20mm PIR Insulation bonded to 12.5mm Plasterboard) 32.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (20mm PIR Insulation bonded to 12.5mm Plasterboard)
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 2400mm - 2.88m2
    Delivery Time: 1-3 working days
    32.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 20mm Unilin PIR core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in one oper..
    Guide Price: £37.05
    £44.46 inc VAT
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200x600mm - 2.88m2
    Delivery Time: 1-3 working days
    50mm Unilin Stonewool SW/RS Insulation Slab is a non-combustible Euroclass A1 stone wool insulation used as ventilated rainscreen façade and framing applications and curtain walling. Unilin Stonewool SW/RS insulation provides a uniform, high density solution providing resilience during the buil..
    Get Best Price
    60mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm 60mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm
    Guide Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
    Delivery Time: 1-3 working days
    60mm Unilin Thin-r XT/TF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings for use in timber framed walls. Unilin XT/TF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/TF is CFC & HCFC free and is manuf..
    Guide Price: £27.43
    £32.92 inc VAT
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 1200x600mm - 2.88m2
    Delivery Time: 1-3 working days
    75mm Unilin Stonewool SW/RS Insulation Slab is a non-combustible Euroclass A1 stone wool insulation used as ventilated rainscreen façade and framing applications and curtain walling. Unilin Stonewool SW/RS insulation provides a uniform, high density solution providing resilience during the buil..
    Get Best Price
    Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 17.28m2
    Delivery Time: 1-3 working days
    50mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board is a flat roof insulation with enhanced vapour resistant performance. Unilin Thin-R FR/ALU board is faced with low emissivity aluminium facings both sides. Rot proof and will remain effective for the life span of the building. Unilin Thin-R FR..
    Get Best Price
    This product is listed in the following categories and systems (click to show).