I buy mine online here
http://www.bes.ltd.uk/nav_graf/frames_cat.htm
[FONT=Arial, Helvetica, sans-serif]Refrigeration - Insulation, Flexible Connectors, Clipshttp://www.extremeprometeia.com/forum/[/FONT] [FONT=Arial, Helvetica, sans-serif]
Class O Armaflex [/FONT][FONT=Arial, Helvetica, sans-serif]
Armaflex is a flexible, closed cell, elastometric, nitrile rubber insulation. It is a highly efficient method of insulating hot and cold water services, chilled water lines, heating systems, air conditioning ductwork and refrigeration pipework for frost protection, energy conservation and condensation control. Armaflex is dust, fibre and CFC free with an ODP of zero which means an environmentally friendly product. P/Ns 14927 to 14946 supplied in 2m lengths. P/Ns 14947 to 14960 supplied in various coiled lengths.[/FONT]
[FONT=Arial, Helvetica, sans-serif]
SPECIFICATION[/FONT][FONT=Arial, Helvetica, sans-serif]
Temperature range:[/FONT][FONT=Arial, Helvetica, sans-serif]
minimum line temperature - 40 °C
maximum line temperature +105 °C[/FONT][FONT=Arial, Helvetica, sans-serif]
Thermal conductivity:[/FONT][FONT=Arial, Helvetica, sans-serif]
to BS 874 part 2 1986[/FONT][FONT=Arial, Helvetica, sans-serif]
Water vapour permeability:[/FONT][FONT=Arial, Helvetica, sans-serif]
to BS 4370 part 2 1973[/FONT][FONT=Arial, Helvetica, sans-serif]
Fire propogation: [/FONT][FONT=Arial, Helvetica, sans-serif]
to BS 476 part 6 1989[/FONT][FONT=Arial, Helvetica, sans-serif]
Fire performance:[/FONT][FONT=Arial, Helvetica, sans-serif]
to BS 478 part 7 1987[/FONT][FONT=Arial, Helvetica, sans-serif]
Noise reduction:[/FONT][FONT=Arial, Helvetica, sans-serif]
DIN 4109 : to 30 dB (A)[/FONT]