Armaflex EVO Tuffcoat Class O 1m Underground Waterproof Pipe Insulation

Armaflex Tuffcoat Pipe Insulation – 1m Long – Ultimate Protection for Outdoor & Underground Applications

Armaflex Tuffcoat is made to order and takes 7-10 working days.

Protect your pipes with Armaflex Tuffcoat Pipe Insulation, a premium solution designed for outdoor and underground use in the harshest environments. This 1m-long, pre-coated nitrile rubber foam insulation features a tough PVC outer layer, providing exceptional resistance to mechanical impact, UV rays, and moisture. Available in 13mm, 19mm, and 25mm thicknesses for pipe sizes from 10mm to 89mm, Armaflex Tuffcoat is ideal for HVAC, refrigeration, mains cold water, and ground source heat pump pipes, ensuring long-lasting performance and energy efficiency.

Key Features & Benefits:

• Designed for Outdoor & Underground Use: Armaflex Tuffcoat is specifically engineered for external pipework and underground systems, offering robust protection against environmental challenges like UV rays, moisture, and physical damage.
• Tough PVC Coating: The pre-applied polymeric PVC layer shields the nitrile rubber foam core from mechanical impacts, bird and rodent attacks, and corrosion, making it perfect for buried mains cold water pipes and ground source heat pump systems.
• UV Resistance: The UV-resistant coating ensures long-lasting protection against the sun's ultraviolet rays, preventing degradation and extending the lifespan of outdoor pipe insulation.
• Microban® Antimicrobial Protection: Built-in Microban technology inhibits the growth of harmful bacteria, mould, and mildew, making it a hygienic choice for schools, hospitals, and food production areas.
• Waterproof & Wash-Down Surface: The waterproof outer layer and wash-down surface make it suitable for clean rooms and food production environments, ensuring easy maintenance and durability in wet conditions.
• Energy Efficiency & Condensation Control: The closed-cell nitrile rubber foam core provides excellent thermal insulation, reducing heat loss and preventing condensation on chilled water lines and refrigerated pipework.
• Easy Installation: Supplied in 1m lengths with a protective overlap seam. To install, cut to length and wrap around the pipe — only the cut longitudinal seam and the external protective overlap should be bonded using a compatible ArmaFlex adhesive. Do not remove the entire backing and bond the full inner surface directly to the pipe.
• Versatile Compatibility: Suitable for a wide range of pipe materials, including mild steel, stainless steel, copper, and plastic, ensuring flexibility across various outdoor and underground applications.

Outdoor & Underground Applications:

Armaflex Tuffcoat Pipe Insulation is the ideal choice for outdoor and underground pipework, offering excellent durability in challenging conditions. For outdoor use, it protects external pipework from UV damage, mechanical impacts, and wildlife attacks (e.g., birds and rodents), making it ideal for HVAC systems, air conditioning lines, and heating systems exposed to the elements. For underground use, its waterproof and corrosion-resistant properties make it perfect for buried mains cold water pipes, ground source heat pump systems, and other underground pipework, ensuring long-term protection against moisture, soil pressure, and environmental wear.

Technical Specifications:

• Material: Black nitrile rubber foam with a pre-applied polymeric PVC coating.
• Length: 1 metre.
• Thickness Options: 13mm, 19mm, and 25mm.
• Pipe Size Compatibility: 10mm to 89mm diameter.
• Fire Rating: Based on Armaflex Class O (BL-s3,d0), with low smoke development.
• Temperature Range: Suitable for hot and cold water services, chilled water lines, and heating systems.
• Antimicrobial Protection: Built-in Microban technology.
• Environmental Impact: CFC/HCFC-free, low environmental footprint.

Installation & Adhesive Guidance:

Compatible adhesives for a long-term performing system include ArmaFlex 520, ArmaFlex HT 625, or ArmaFlex RS850. Only the cut longitudinal seam and the external protective overlap should be bonded — do not remove the entire backing and adhere the insulation directly to the pipe. Longitudinal and end seams must be sealed with ArmaFlex 520 adhesive. Please refer to the Armacell application manual and contact Armacell Technical Services for installation advice before application.

Complete Your Project:

For a professional installation, pair Armaflex Tuffcoat with Armaflex 520 adhesive for secure bonding at joints, and Armaflex Cleaner for surface preparation. Browse the full Armaflex Tuffcoat range for all available pipe sizes and wall thicknesses.