Plysolene PIB Jacketing
Plysolene Polyisobutylene Jacketing
PIB Application Advice
The sheeting is very easily applied to the insulated pipeline. Suitably sized pieces are cut and wrapped around the outside of the insulation. Endlaps of 80mm should be allowed and 50mm sidelaps underneath the pipes.
The overlaps are solvent welded by applying Plysolene Welding Agent E with a stiff brush. Other solvents can be used, but greater skill is required to achieve really good welds, hence Plysolene always recommend the use of their specifically formulated welding agent. The solvent should be applied with a circular scrubbing movement to both surfaces so that they become tacky before the overlap is pressed together. The use of too much solvent can cause premature failure as the excess solvent will continue to dissolve the PIB long after the weld has been made.
PIB Technical Data
-34°C to +72°C
5g/0.001in/m2/day at 38°C and 90% RH (0.1g/m2/24 hrs)
Plysolene PIB Approvals
- Approved by the Department of Environment PSA Standard Specification (M&E) No 3.
- Plysolene PIB does not conduct electricity
- Meets Class 2 Spread of Flame BSS 467 Part 7: 1971
- Fumes given off when burning are not considered toxic.
Plysolene PIB is generally unaffected by:
Hydrochloric Acid (dil & conc), Acetone, Sulphuric Acid (dil & conc), Acetic Acid, Aqueous Caustic Lime, Methanol and Ethanol, Aqueous Hydrosulphite, Formic Acid (dil & conc), Methyl Acetate, Copper Sulphate solutions, Sodium Chloride, Potassium Permanganate, Ethylene Glycol, Hydrogen Peroxide, Chromic Acid, Glycerine, Ethyl Acetate, Sulphonic Acid, Phenol, Chlorosulphuric Acid, Cyclohexone, Sodium Hydroxide (dil & conc), Ammonia, Naphthalene Sulphuric Acid, Solvents E13/E14.
Plysolene PIB is semi-resistant to:
Concentrated Nitric Acid, Nitration Acid
Plysolene PIB is NOT resistant to:
Chlorine & Bromine (liquid, gaseous or aqueous)
Plysolene PIB swells in:
Ether, Butyl Acetate, Petrol and Diesel, Animal and Vegetable Fats and Oils (eg. Lard, Butter, Coconut Fat, Linseed, Olive or Whale Oil.
Plysolene PIB is soluble in the following:
Benzine, Xylene, Paraffin Wax, Carbon Bisulphide, Toluene, Cyclohexane, Liquid Paraffin, Chlorobenzene, Benzene, Mineral Oil, Methylene Chloride, Carbon Tetrachloride.
Plysolene PIB amalgamates under pressure hence rolls are supplied either chalked or paper interleaved. The standard colour is Black in a range of thicknesses from 0.5mm to 1.2mm, White 0.8mm is also available but for internal applications only. For more information visit http://www.plysolene.co.uk or http://pipeinsulation.blogspot.com/