75mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
75mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
- Product Code: A1-4974
- Delivery Time: 2 - 3 working days
- Brand: Unilin (prev. Xtratherm) (Tech. support: 03712221055)
- Model: 1200x450mm - 2.16m2
Our ratings on 02-10-2026:

4.8 out of 5
75mm Unilin Safe-R SR/CW Phenolic Partial Fill Cavity Insulation Board (pack of 4)
Length: 1200mm
Width: 450mm
Thickness: 75mm
Pack Quantity: 4
Board Coverage: 0.54m2
Pack Coverage: 2.16m2
Thermal Conductivity: 0.021W/mK
R-Value: 3.55m2K/W
Compressive Strength: 100kPa
Fire Rating (Reaction to Fire): B(Class 0)
75mm 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 75mm 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: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
42.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 30mm 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: £47.53
£57.04 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 1200mm x 1200mm - 8.64m2
Delivery Time: 3 - 5 days
80mm Unilin FR/MG is a high performance PIR core with mineral coated glass facers suitable for use below single ply waterproofing systems and partially bonded built-up felt. It is compatible with adhesively bonded single ply roofing membranes laid on mechanically fixed or adhered boards.
..
Guide Price: £187.31
£224.77 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 1200mm x 450mm - 2.16m2
Delivery Time: 7 - 10 days
75mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board - 1200mm x 450mm (pack of 4)
75mm Unilin Safe-R 019/CW Phenolic Partial Fill Cavity Insulation Board is a high‑performance phenolic insulation panel designed for traditional masonry cavity walls. It delivers excellent thermal efficiency while preserving a clear residual cavity, helping protect buildings from wind‑driven rain. T..
Brand: Unilin (prev. Xtratherm)
Model: 1200mm x 1200mm - 14.40m2
Delivery Time: 3 - 5 days
50mm Unilin FR-BGM is a a BBA certified high performance PIR insulation board that is faced with a fleece finished bitumen/glass facers and is suitable for use below partially bonded bitumen based built up roofing systems. Unilin FR-BGM is suitable to apply torch on felt directly on the insulation. ..
Guide Price: £255.58
£306.70 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
35mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the high..
Guide Price: £29.51
£35.41 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
119mm Unilin Plydeck Flat Roof Board is a high-performance composite board designed for flat roof applications. It comprises a 110mm rigid polyisocyanurate (PIR) insulation board directly bonded to a 9mm OSB board. This combination provides both high levels of thermal insulation and a robust decking..



