Flexible and Flat Duct Support Technical Specification

Where the flexible and flat duct supports are manufactured using Phenolic foam, the foam used is a CFC/HCFC free, closed cell Phenolic insulation, thermo-bonded to a 28 micron aluminium foil facing, reinforced with a 10mm glass tissue mesh. The blocks are further bonded to a 40 micron glass reinforced foil tape.

Phenolic Foam Standard Unit 60 kg/m³ 80 kg/m³ 120 kg/m³
Minimum density (kg/m³)     60 80 120
Compresssive Strength ASTM D1621 kPa 100 ± 10 500 ± 50 1000 ± 100
Closed Cell Content ASTM D2856 %   min 90  
Temperature Range   °C   -200°C to +120°C  
Water Absorption ASTM D2842 max %   +5%  
Thermal Conductivity ASTM D1621 W/mk 0.018 0.030 0.040
Fire Properties BS476 Part 5     P  
  BS476 Part 6     O  
  BS476 Part 7     Class 1  

Disclaimer

Important: Please read our standard disclaimer.

Product Sizes and Quantities

All products are shipped by overnight carrier of delivered direct to site or works by ourselves. Lead time in general is 4/5 working days (except for 80kg, 120kg & Calcium Silicate) but always call if you require special delivery. We will always try to help where possible. The quantities per box are as follows – they are the same for both flexible and flat products.

Thickness Width Length per Box
25 mm 50 mm 36 m
38 mm 50 mm 30 m
50 mm 50 mm 24 m
     
25 mm 75 mm 24 m
38 mm 75 mm 20 m
50 mm 75 mm 16 m
     
25 mm 100 mm 18 m
38 mm 100 mm 15 m
50 mm 100 mm 12 m
     
25 mm 150 mm 12 m
38 mm 150 mm 10 m
50 mm 150 mm 8 m