Superlon is a flexible and light weight elastomeric nitrile foam material designed for thermal insulation. SUPERLON insulation is black in colour and is available either in tubing or sheet form. The extruded flexible tubing is specially designed to fit the standard diameters of steel and copper pipings. Sheets are available in standard precut sizes or in rolls.


Superlon's expanded closed cell structure provides an efficient vapour barrier for the prevention of condensation or frost formation on cooling systems, chilled water and refrigerator lines.

Superlon also retards heat loss for hot water plumbing and heating, dual temperature piping and solar systems. It protects pipes against corrosion and acts as a vibration damper.

Superlon's inherent flexibility makes it ideally suited to the insulation of large surface areas such as tanks, irregularly shaped vessel, air-ducts and large diameter pipes.


Low thermal conductivity (K value) which makes it highly efficient and effective in the insulation of cooling or heating systems.


The thermal blister closed cell structure forms an impermeable layer which is in itself a good vapour barrier.


It is suitable for application within the temperature range of - 40 deg C to +105 deg C.

The material has been specially compounded to be self extinguishing in nature.


Superlon has excellent ozone and ultraviolet resistance.


It is CFC, asbestos, chlorine and fibre free and does not cause skin allergy.


It is also inert to most chemical agents and neutral to pipe metals.


The extreme flexibility of the material makes installation fast, easy and economical.


It is able to withstand tearing, rough handling and severe site conditions.


Much lesser space is needed for Superlon as a thinner wall is required due to its low K value as compared to other types of insulation.


The smooth surface of Superlon material gives the finished installation a neat and aesthetic appearance. No coating is necessary on most indoor installations.


The above average physical properties are values obtained in accordance with accepted test methods.

At - 40°C Superlon Closed Cell Insulation becomes hard and as temperature drops below - 40°C will be increasingly brittle; however this hardening characteristic does not effect thermal efficiency or water vapour permeability.

The Fire Rating standard method of tests conducted under controlled laboratory conditions is a measure of a material to spread flame when compared to a known standard and is not intended to reflect hazards presented by this or any other material under actual fire conditions.

Average Physical Properties
Test Method
Cellular Structure
Very Fine
-Closed Cell
Density (kg/m³)
ASTM D 1667
Thermal Conductivity Mean Temp. @ 1 0°C
0.04 W/m°C
(0.0346 Kcal/mh°C)
Temperature Limits °C
-40°C to + 1 05°C
Thermal Stability (% shrinkage)
7 days - 200°F
7 days - 220°F


ASTM C 534
ASTM C 534
Fire Resistance
Class 0
Class 1
Self Extinguishing
V-O, 5VA
BS 476 Part 6
BS 476 Part 7
ASTM D-635 UL94 / JIS K6911
NES 713
Water Absorption
(% W/W)
ASTM C 272 /
ASTM 1056
Water Vapour Permeability
Perm - In. Max g/Pa.s.m.²
0.29 ug.m/N.h
8.17x 1014
Mildew Resistance
No Fungal Growth
Weather and Ultraviolet Resistance
Ozone Resistance
ASTM D 1171 / JIS K6301
Chemical Resistance
Manufacturing Process
Without CFC, Asbestos, Chlorine & Fibre.