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 17-09-2026:

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
29.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 20mm Unilin PIR core with foil faces bonded to 9.5mm 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 opera..
Guide Price: £44.46
£53.35 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 1200mm x 1200mm - 10.08m2
Delivery Time: 3 - 5 days
70mm 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: £221.30
£265.56 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
79mm Unilin Plydeck Flat Roof Board is a high-performance composite board designed for flat roof applications. It comprises a 70mm 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 s..
Guide Price: £57.18
£68.62 inc VAT
Brand: Unilin (prev. Xtratherm)
Model: 2400mm x 1200mm - 11.52m2
Delivery Time: 7 - 10 days
75mm Unilin Safe-R 019/MA (Roofs) is a high‑performance phenolic insulation board designed specifically for warm roof applications where exceptional thermal efficiency is required with minimal added build‑up. Its advanced phenolic core delivers one of the lowest thermal conductivities available in r..
Brand: Unilin (prev. Xtratherm)
Model: 1200x2400mm - 34.56m2
Delivery Time: 1-3 working days
25mm Unilin XtroLiner XtroDeck XO/XD board has a core of modified polyisocyanurate (PIR) bonded to low emissivity embossed aluminium foil facings. Unilin XtroLiner XtroDeck XO/XD board offers excellent insulation performance with excellent thermal conductivity.Unilin XtroLiner XtroDeck XO/XD bo..
Brand: Unilin (prev. Xtratherm)
Model: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
59.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 50mm Unilin PIR core faced with composite kraft paper bonded to 9.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed cell comp..
Guide Price: £59.23
£71.08 inc VAT









