12mm Pipe Insulation

12mm Pipe Insulation — UK Specialist Supplier

Shop our full range of 12mm pipe insulation for small bore copper pipework. 12mm pipe is commonly used in microbore central heating systems, underfloor heating circuits and specialist plumbing applications where compact pipework runs are required.

Available Products

  • Armaflex Tubolit 12mm — Class O flexible foam pipe insulation, available in 9mm and 13mm wall thickness. Ideal for preventing condensation and heat loss on small bore pipework.
  • Self-Seal 12mm — Pre-slit foam insulation with adhesive closure strip for fast, tool-free installation on 12mm pipe runs.

Why Insulate 12mm Pipework?

Even small bore pipes lose significant heat over long runs. Insulating 12mm pipework reduces heat loss, prevents condensation forming on cold pipes, and protects against frost damage in exposed locations such as lofts, garages and outbuildings.

Choosing the Right Wall Thickness

  • 9mm wall — Standard domestic applications, condensation control on cold pipes
  • 13mm wall — Enhanced thermal performance, recommended for heating pipework and frost protection
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