![]() ![]() It is useful as a filler for junction boxes and can also be used for many non electrical applications whenever a reliable non-hardening moisture or water seal is required.The sealing of irregular openings, cable entries, screw threads and covers of electrical equipment.The prevention of electrical leakage on circuits due to dampness and the protection of electrical contacts against corrosion.However it is not resistant to oils, aromatics or aliphatic hydro carbons. It has no deleterious effects on metals, plastic, natural or synthetic rubber, PVC or other cable materials. ![]() ![]() It resists water permeation and is unaffected by dilute acids and alkalis in liquid or vapour form, and many other chemicals. The compound material does not liberate toxic fumes even if overheated and is harmless to the hands. Hence, it is ideal for use in maintenance purposes where cables may have to be removed or replaced at regular intervals. The compound does not harden on exposure to air or sunlight, it does not shrink, crack or peel and although sunlight may cause a slight skin hardening, this does not affect the mass and can be removed by working in the hand. The compound, whilst not sticky, is soft enough to be readily moulded around intricate contours or pressed into fine cavities, and it has the ability both to resist the dislodging effects of vibration and prevent moisture creepage along an interface. It may be moulded around terminals and connections or it can be used as a mechanical seal for any form of enclosure This compound has the consistency of a putty and also has good insulation properties, being rated at 1000V. Description 0.5Kg Black Non Hardening Sealing Putty This permanently soft and flexible sealing/insulating electrical compound is for use in applications such as blocking and filling electrical components e.g cables, chokes, junction boxes, couplers, glands, switchgear etc. R391 compound is a non-hardening plastic weatherproof sealant which can be applied to protect electrical connections from moisture and corrosive vapours. Flash point is +210☌.Prysmian Bicon R391 Electrical Weatherproof Compound/Putty 2 x 250 gram pack It is reddish-brown in colour and withstands temperatures between -20☌ and 80☌. This putty does not emit and toxic fumes and has no adverse effect on metals, plastics, rubber (both natural and synthetic), PVC or other cable sheathing materials. It can be removed by hand when need be which makes it an ideal choice for applications where cables may have to be disconnected at regular intervals. R391 Weatherproof Electrical Putty has excellent UV resistance and will not shrink, harden, crack or peel. This also allows it to create effective seals that prevent moisture creepage. It’s not sticky to the touch but does have good adhesion to moulded plastic and other surfaces so that it isn’t dislodged by vibration. Manufactured by Prysmian, R391 is soft enough to be moulded around terminals or pressed into cavities. Electrical breakdown at 20☌ is 18 kV / mm. R391 has excellent electrical insulation properties. R391 effectively seals irregular openings, cable entries, screw threads and equipment covers and is also used in a number of electrical applications that require a non-hardening moisture or water-tight seal. It also protects electrical contacts from corrosion in industrial atmospheres. It prevents current leakage and short circuits due to dampness. This allows it to be formed around terminals and connections or to be used to create a mechanical seal for any type electrical enclosure. This plastic putty can be easily moulded by hand. R391 Weatherproof Electrical Putty is a non-hardening compound that is used to protect electrical connections from moisture and corrosion. ![]()
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