GL3020 PBT Secondary Coating for Micro-cable Optical Fiber


PBT is very important secondary coating materials for Optical Fiber, It has excellent performance in mechanical /thermal /hydrolytic / chemical resistance properties and easy to be mechanical processed.


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Type and application

 Type Product Application and advantages
 GL3020PBT resinSecondary Coating Materials Used for Micro -cable Optical Fiber

Product description

PBT is very important secondary coating materials for Optical Fiber, It has excellent performance in mechanical /thermal /hydrolytic / chemical resistance properties and easy to be mechanical processed.

Properties Advantages Description
Mechanical propertiesHigh stabilitySmall shrinkage scale, small volume changingin using, good stability in forming.
High mechanical strengthGood modulus, good extension performance,high tensile strength, the lateral pressure of loosetube is higher than requirement of standard .
Thermal propertiesHigh distortion temperatureWhether in the case of high load or low load ,the performance of distortion is excellent
Hydrolytic propertiesAnti-hydrolysisHigh performance of anti-hydrolysis make opticalcable more longer life than requirement of standard.
Chemical propertiesChemical resistancePBT can tolerate most of polarity chemical reagent atroom temperature. And PBT is not compatible withfilling gel. at high temperatures and susceptible to erosion.

Processing technology  The recommended processing temperature:

ZoneExtruder body 1Extruder body 2Extruder body 3Extruder body 4Extruder body 5FlangeExtruder neckExtruder head 1Extruder head 2Hot waterWarm water
 /℃2502552602652652652652552553530

Package: Two package ways, : 1. It is packed 900/1000KG per bag with the inner lining of aluminum foil material, outer lining of PE woven material. 2. It is packed 25KG per bag with inner lining of aluminum foil material , outer lining of kraft paper material.

Storage and transport

Transportation: It should not be exposed to get wet or humidity during transportation, and keep it dry, clean, complete and pollution-free. Storage: It is stored in a clean, cool, dry and ventilated warehouse away from the source of fire. If the product is found to be damped in rainy reason or with high moisture in the air, It can be used one hour later after it is dried at the temperature of 120℃ .