Armaflex HT Solar Pipe Insulation 2m Outdoor High Temperature UV Resistant

Armaflex HT Solar Pipe Insulation – 2m Outdoor High-Temperature UV Resistant – Unmatched Durability for Solar & HVAC Systems

Protect your outdoor pipework with Armaflex HT Solar Pipe Insulation, a high-performance solution engineered for extreme temperatures and harsh outdoor conditions. This 2m-long, un-split tube is manufactured from factory-made flexible elastomeric foam based on ethylene propylene diene monomer (EPDM), in accordance with EN 14304. Designed for high-temperature applications up to +150°C, it offers exceptional UV resistance and durability. Available in 10mm, 13mm, 19mm, and 25mm thicknesses for pipe sizes from 10mm to 89mm, it's the ideal choice for solar panels, HVAC systems, hot gas lines, and steam lines.

Unmatched UV Resistance & Durability

Armaflex HT Solar Pipe Insulation is crafted from black EPDM foam rubber, a material renowned for its superior UV resistance and weatherproof properties. UV resistance testing has shown excellent results — when used on outdoor applications, the materials showed very good durability even under UV exposure. However, due to the unpredictable nature of outdoor conditions, installations in extreme environments (regions of extreme weather conditions like high mountains etc.) cannot be recommended. In case of doubt, please contact Armacell's Customer Service.

Key Features & Benefits

• Superior UV Resistance: EPDM foam rubber withstands UV radiation and weathering without cracking or crumbling, providing long-term protection without the need for additional painting or cladding in standard outdoor conditions.
• Exceptional Durability: Retains flexibility and thermal performance across a full service temperature range of -50°C to +150°C, making it ideal for solar applications, hot gas lines, and steam systems.
• Self-Adhesive Coating: Features a pressure-sensitive adhesive coating on an acrylate basis with non-woven fabric, covered with polyethylene foil for reliable, seamless installation. Note: traces of silicone may be present on the paper/foil protecting self-adhesive closures.
• Condensation Control: The built-in vapour barrier prevents condensation on chilled water lines and refrigerated pipework, reducing the risk of corrosion under insulation (CUI).
• Low Thermal Conductivity: Declared thermal conductivity λd ≤ 0.042 W/(m·K) at 40°C for tubes, and λd ≤ 0.045 W/(m·K) at 40°C for sheets/tapes, minimising heat loss and improving energy efficiency.
• Fire Safety: Reaction to fire classification D(L)-s3,d0 for tubes and D-s3,d0 for sheets/tape (EN 13501-1). Self-extinguishing, does not drip, does not spread flames. Class 1 resistance to flame spread (BS 476 Part 7). Passes UL 94 V-0 (IEC 60695-11-10).
• Lightweight & Flexible: The 2m un-split tube design allows for quick and easy installation with low maintenance requirements.
• Environmentally Friendly: Dust-free, fibre-free, and CFC/HCFC-free with an Ozone Depletion Potential (ODP) of zero.

Applications

Armaflex HT Solar Pipe Insulation is specifically designed for thermal insulation of pipes, vessels, and ducts in solar collectors (including outdoors), motor vehicles, hot gas lines, steam lines, and dual temperature lines. Its UV resistance and durability make it ideal for external pipework exposed to sunlight, such as solar heating systems and air conditioning lines.

Technical Specifications

• Material: Factory-made flexible elastomeric foam based on EPDM, per EN 14304. Colour: Black.
• Self-Adhesive Coating: Pressure-sensitive adhesive on acrylate basis with non-woven fabric, covered with polyethylene foil.
• Length: 2 metres (un-split tube).
• Thickness Options: 10mm, 13mm, 19mm, and 25mm.
• Pipe Size Compatibility: 10mm to 89mm diameter.
• Service Temperature Range: -50°C to +150°C (full range).
• Thermal Conductivity (Tubes): λd ≤ 0.042 W/(m·K) at 40°C — Formula: λ = [36.92 + 0.125 · θm + 0.0008 · (θm–30)²] / 1000
• Thermal Conductivity (Sheets/Tapes): λd ≤ 0.045 W/(m·K) at 40°C — Formula: λ = [39.92 + 0.125 · θm + 0.0008 · (θm–30)²] / 1000
• Reaction to Fire: D(L)-s3,d0 (tubes), D-s3,d0 (sheets/tape) — EN 13501-1, EN ISO 11925-2, EN 13823.
• UL 94 V-0: Pass — IEC 60695-11-10.
• Fire Class: Class 1 (BS 476 Part 7). Self-extinguishing, does not drip, does not spread flames.
• Environmental Impact: CFC/HCFC-free, zero ODP.
• Declaration of Performance: Available at www.armacell.com/DoP (Regulation (EU) No 305/2011, Article 7(3)).

Installation

Important Installation Information: For all outdoor installations, Armacell recommends bonding all longitudinal seams and butt joints using HT625 adhesive. While Armaflex HT Solar is UV resistant and suitable for permanent external exposure, adhesive is required to minimise natural longitudinal shrinkage, maintain sealed joint integrity, and achieve the best long-term performance. Mechanical fixings such as cable ties, Velcro straps, or tape should not be relied upon as a substitute for adhesive at insulation joints. Always follow the latest Armacell installation guidance.

Please refer to the ArmaFlex application manual for full installation guidance. Further information is available in Armacell's Technical Bulletin No. 71. For sealing exposed joints and repairs, consider Armaflex HT Solar Tape.

Order Now

Available for fast UK delivery from Pipelagging.com, Armaflex HT Solar Pipe Insulation is your go-to solution for durable, UV-resistant pipe protection in high-temperature outdoor applications. Also available as a pre-slit tube for easier installation on existing pipework. Order today and safeguard your pipes against the elements!