ULVA has added to its highly successful range of non-metallic cladding with the introduction of the Self-bonding Cladding system, also developed to meet the exacting needs of the onshore and offshore Oil & Gas Industry.

In certain applications, it can be both practical and advantageous to have an outer cladding membrane fully adhered to the thermal insulation medium. ULVA Shield’s Self-bonding Cladding is supplied in roll form with a high contact adhesive backing that is capable of bonding directly to insulation media, providing a weatherproof and watertight outer membrane to the insulation in one single dry fix application.

The membrane is simply applied like wall-paper by removing the backing film and placing in direct contact with the substrate.

When applied to vessels, the 1 metre wide sheets are hung from the vessel’s top insulation ring all the way down to the base ring. Dome ends and penetrations are simply dealt with using the standard range of ULVA Shield accessories and pre-moulded fittings.

All joints and overlaps are then sealed using ULVA Seal Mastic. ULVA Seal is ideal for LPG storage tanks, process vessels etc. operating at extremely low temperatures.

Compound Reference
ULVA Shield Self-bonding
Specific Gravity
1.7 +/- 0.04 membrane
Specific Weight
1.70 kg/m2 membrane
Sheet Thickness 2mm (+/- 0.1mm)
2mm (+/- 0.1mm)
Colour Options
Grey standard, other colours available on request - please contact Ulva Limited for further details.

Service Temperature Range
- 45oC to + 100oC
Glass Transition Temperature
- 47oC
Tensile Strength
14.9 Mpa
Elongation
150%
Tensile Modules at
100% 1.9 Mpa
150% 2.4 Mpa
Ozone Resistance
BS 903 : A43 1990 No Cracking
Joint Movement Capability
20%
Thermal Conductivity
@ -200c 0.0030wm/k
@ -0c 0.033wm/k
@ +400c 0.039wm/k
Life Expectancy
In excess of 25 years when used and applied in accordance with manufacture's directions.
Test Standard
BS 903 : A2 1995
BS 903 : A2 1995
BS 903 : A2 1995
BS 903 : A2 1995

Surface Spread of Flame & Flammability
British Standard 476 : Part 7 : 1987
Test resulted in a Class '1' rating - this is the best rating available from this test.
British Standard 476 ; Part 6 : 1989
Test resulted in a Class '0' rating - this is the best rating available from this test.
International Maritime Organisation Resolution MSC 61 (67) 1996 - Part 5
Test resulted in a classification for use on Bulkheads, Ceilings and Deck Finish Materials - this is the best rating available from this test. NB - Please note that the above test data is available with various insulation materials please contact ULVA Limited for further information.

Smoke Density & Toxicity
International Maritime Organisation Resolution MSC 61(67) 1996 - Part 2
ULVA Shield has achieved the criteria for smoke generation and toxicity for bulkhead, wall and ceiling linings, plastic pipes and cables specified in the Resolution.

Accelerated Ageing Tests
British Standard 3900:
Parts F5, F3 & F12.
BS 3900 Part F3 Artificial weathering: After 1000 hours no surface deterioration of material rated 4 on the grey scale.
BS 3900 Part F5 Ultra Violet Lightfast Test : After 1000 hours no surface deterioration of material rated 4/5 on the grey scale.
BS 3900 F12 Neutral Salt Spray: After 1000 hours no surface deterioration of material.

Water Vapour Permeability
ASTM D1653 (wet cup)
Test Results:
Water Vapour Transmission Rate 1.66 g/m2/24 hrs
Water Vapour Permeability 0.08 g/m2/24 hrs/mmHg