Butyl sealing mastic tape
Description :

• Premium Quality waterproof butyl mastic tape  is a self-amalgamating mastic tape used for moisture sealing on all types of telecommunications and solid dielectric power cable splices and connections. 
• It is a tacky, temperature stable mastic with excellent conformability and adhesion to metal and all types of cable insulations and jackets. 
• It is put up on a white release coat separator in roll form without any core. 
• Once applied, waterproof butyl mastic tape should be overwrapped with a vinyl or rubber tape which will encapsulate it and, through centripetal force, make it flow into every crevice and indentation in a cable jacket thereby giving a superior moisture seal in a splice or around any connection. 
• Premium Quality waterproof butyl mastic tape also RoHS compliant, resistant to corrosion, chemicals and salt water and has no adverse effect on cable insulations. 
• Its 2.5mm thickness facilitates rapid protection build-up. 
• Use in conjunction with KC63 premium vinyl electrical tape for optimal performance.

Application:

•  Moisture seal and insulation in power cable through 600 volts
•  Moisture seal and insulation of telecommunication cable connections in base stations, antennas and aerial feeders
• Other moisture sealing applications

Butyl sealing mastic tape package and shipping

• Your inquiry related to our product&price will be replied within 24 hours.
• OEM&ODM projects are highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third.
• Good after-sale service offered, please get back if you got question.

Suggestion for inquiry:

• If you have a sample in hand, and want to buy the same goods for it, please send your inquiry with the real picture, sizes, packing requirement, qty, etc.
• If you are purchasing this item, please send us full details including the thickness, length, width, application of the tape, and the quantity you need.

Shenzhen Cotran Industrial Material Co., Ltd. is a leading supplier of electrical insulation and moisture sealing products that are sold to a broad range of customers including distributors of electrical materials, power utilities, telecommunication companies, mines, original equipment manufacturers, governments and retailers. Cotran’s product range consists of vinyl electrical tapes, mastic and rubber backed mastic water sealing tapes, ethylene propylene rubber (EPR) based self-amalgamating high voltage insulating and semi-conducting tapes and other special purpose tapes and related products.

What is Self-amalgamating tape?
»»»From Wikipedia, the free encyclopedia

Self-amalgamating tape is a non-tacky silicone-rubber tape which when stretched and wrapped around cables, electrical joints, hoses and pipes combines or unites itself into a strong, seamless, rubbery, waterproof, and electrically insulating layer. Unlike many other polymers and fibers, it is heat-, sunlight-, and weather-resistant. This type of tape is also described, particularly in the United States, as "self-fusing" or "self-vulcanizing". In the US Air Force (and elsewhere) it is called centerline tape due to a colored line running down the center used to assist with even wrapping. It is also called F4, rescue, and fix-it tape.

While not adhesive as such, its self-amalgamating property makes it function as like adhesive tape when wrapped over itself. It is supplied in rolls with an interleaving layer, to prevent the tape from amalgamating before use. It may optionally be made with an iron-oxide additive which adds high thermal conductivity. This tape is used extensively in aviation and aerospace wiring applications as a splice or wrapping tape due to its non-flammability.[citation needed] It can be used for emergency repair of leaking low-pressure hoses and pipes.

Compared to most other electrical and utility tapes, centerline tape is not particularly tough mechanically. Silicone rubber feels soft but is also susceptible to cuts and abrasion, having low "tear resistance". This weakness is made worse because this tape is wrapped while stretched, and remains under internal tension even while fused, so that any nicks or cuts may start to tear and expand without additional external tension.[6] However these same properties, combined with the lack of traditional gum adhesive,makes tape removal if needed, quick, clean, and easy.