K-Flex Pipe Insulation & Accessories

K-Flex elastomeric foam pipe insulation for air conditioning, refrigeration, and HVAC installations. Class O fire-rated, manufactured in Italy to the highest quality standards. Stocked in self-seal tube, coil, sheet, and specialist formats — available from UK stock with same-day dispatch and trade pricing.

K-Flex ST Self-Seal

The trade standard for domestic and light commercial AC installations. Pre-slit 2m lengths with a factory-applied self-adhesive seam — no adhesive required for straight runs. Available in 9mm, 13mm, and 19mm wall thicknesses across a full range of bore sizes from 6mm to 54mm. Fast to install, clean finish, consistent vapour barrier.

K-Flex ST Standard Tube

Non-self-seal tube for installations where K-420 adhesive is preferred or required. Suitable for all refrigerant pipework, chilled water, and HVAC applications. Same Class O rating and dimensional range as the self-seal range.

K-Flex Insulation Coil

Continuous coil format for bulk installs, VRF/VRV systems, and long pipe runs. Lower cost per metre than pre-cut tube. Cut to length on site. Ideal for multi-unit commercial installations where speed and material cost matter.

K-Flex Sheet & Roll

Flat sheet insulation for wrapping irregular shapes, ductwork, valves, and fittings where tube format is not practical. Available in standard and self-adhesive backed versions.

Completing a K-Flex Installation

For a compliant, long-lasting vapour barrier, all K-Flex installations require K-420 contact adhesive at all joints, bends, tees, and cut ends, and K-Flex insulation tape to seal the seam and any exposed edges. Skipping either step creates condensation risk at the joint. Both are stocked under Pipe Insulation Accessories.

Pipe supports and fixings for insulated pipework are stocked separately. For external and underground applications, see Armacell Tuffcoat insulation.

Trade accounts available — call 0161 775 1190 for volume pricing.