Ultra-Low Conductivity Premium Elastomeric Foam

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.

30+
Years
6/6
Certifications
6+
Applications
Material
Closed-Cell NBR/EPDM Elastomeric Foam
Thermal Conductivity (λ)
0.030 W/m·K at 0°C (ASTM C518)
Operating Temperature
-50°C to +115°C (ASTM C534)
Density
55–80 kg/m³ (ASTM C302-13)
Compliant batch
Lot · GOF-ULTRA-26
Certified toISO 9001FM ApprovedUL ListedEPD VerifiedBS 476 Part 6 & 7ASTM E84 / UL 723
Performance

Engineered for extreme climates.

Four pillars define every Gulf-O-Flex® roll, sheet and tube - measured, certified and serialised.

01
Thermal
0.030 W/m·K at 0°C (ASTM C518)
Conductivity
02
Fire Safety
BS 476 Part 6 & Part 7 Class O
Reaction to fire
03
Moisture
≤ 0.10 vol% (ASTM C534)
Vapour barrier
04
Temperature
-50°C to +115°C (ASTM C534)
Service window
Overview

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.

Manufactured
UAE, Saudi Arabia, Srilanka
Distributed
90+ countries
Lead time
2–4 weeks
Highlights

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
Gallery

Product close-up.

Gulf-O-Flex Ultra premium elastomeric foam
Ultra NBR/EPDM insulation close-up
Technical Data

Full specifications.

Download TDS
ParameterValue
01Material
Closed-Cell NBR/EPDM Elastomeric Foam
02Thermal Conductivity (λ)
0.030 W/m·K at 0°C (ASTM C518)
03Operating Temperature
-50°C to +115°C (ASTM C534)
04Density
55–80 kg/m³ (ASTM C302-13)
05Water Absorption
≤ 0.10 vol% (ASTM C534)
06Water Vapour Transmission
0.00 Perm in (ASTM E96/96M)
07Vapour Diffusion Factor (μ)
> 10,000 (BS EN 12086)
08Fire Rating
BS 476 Part 6 & Part 7 Class O
09Surface Burning
FSI ≤ 25, SDI ≤ 50 (ASTM E84 / UL 723)
10Cell Structure
Closed Cell
11Thickness Range
6mm to 50mm
12Available Forms
Sheets, Tubes
Values are typical. Full tolerances available in datasheet.DOC · GOF-ULTRA-TDS-26
Use Cases

Specified across critical projects.

01
Chilled Water & District Cooling
02
Low-Temperature Refrigeration
03
Cryogenic & Process Piping
04
Premium HVAC Systems
05
Pharmaceutical & Data Centre Cooling
06
Cold Storage Facilities
Compliance

Independently certified.

ISO 9001
FM Approved
UL Listed
EPD Verified
BS 476 Part 6 & 7
ASTM E84 / UL 723
Verified · current revision
All certs
Talk to an engineer

Ready to specify Gulf-O-Flex® Ultra?

Our technical team supports sizing, BoQs, submittals and compliance documentation for projects across the GCC and beyond.

ISO 9001 Class O 50+ Countries
Technical desk
Mon – Sat · 09:00–18:00 GST
  • Project-specific sizing & BoQ
  • Submittals & compliance dossiers
  • Site visits & installer training
  • Sample dispatch within 48 hours
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