Gulf-O-Flex® UltraEngineered insulation, Middle East proven.
Next-generation closed-cell NBR/EPDM hybrid insulation with ultra-low thermal conductivity for the most demanding HVAC, refrigeration, and chilled-water applications.
Gulf-O-Flex® Ultra is a premium closed-cell elastomeric foam engineered with an advanced NBR/EPDM polymer blend to deliver an industry-leading thermal conductivity of just 0.030 W/m·K at 0°C. Available in sheet (with or without self-adhesive) and tube forms from 6mm to 50mm, it brings measurable energy savings and longer service life to chilled water, district cooling, refrigeration, and low-temperature process lines.
Engineered for extreme climates.
Four pillars define every Gulf-O-Flex® roll, sheet and tube - measured, certified and serialised.
Built around three decades of regional know-how.
Gulf-O-Flex® Ultra is a premium closed-cell elastomeric foam engineered with an advanced NBR/EPDM polymer blend to deliver an industry-leading thermal conductivity of just 0.030 W/m·K at 0°C. Available in sheet (with or without self-adhesive) and tube forms from 6mm to 50mm, it brings measurable energy savings and longer service life to chilled water, district cooling, refrigeration, and low-temperature process lines.
Ultra extends the proven Gulf-O-Flex® platform with enhanced UV resistance, an extended operating window from -50°C to +115°C, and an ultra-high water vapour diffusion resistance factor (μ > 7,300). FM Approved, UL Listed and EPD Verified - Zero ODP, CFC and HCFC free, and certified Class O for fire safety.
Why specifiers choose this grade.
- 01Ultra-low thermal conductivity - λ 0.030 W/m·K at 0°C (ASTM C518)
- 02Extended operating temperature - -50°C to +115°C
- 03Advanced NBR/EPDM polymer blend - improved UV & ozone resistance
- 04Water vapour diffusion resistance factor μ > 10,000 (BS EN 12086)
- 05Water absorption ≤ 0.10 vol% (ASTM C534)
- 06Self-extinguishing - Class O (BS 476 Part 6 & 7)
- 07FSI ≤ 25, SDI ≤ 50 (ASTM E84 / UL 723)
- 08Zero ODP, CFC & HCFC free - EPD Verified low embodied carbon
- 09Anti-microbial - resists mould and mildew growth
- 10Available in sheet and tube forms, 6–50mm
Product close-up.


Full specifications.
Specified across critical projects.
Independently certified.
Ready to specify Gulf-O-Flex® Ultra?
Our technical team supports sizing, BoQs, submittals and compliance documentation for projects across the GCC and beyond.
- Project-specific sizing & BoQ
- Submittals & compliance dossiers
- Site visits & installer training
- Sample dispatch within 48 hours
