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Do You Know The Flame Retardant Standards Of Escalator Brushes?

Do You Know The Flame Retardant Standards Of Escalator Brushes?

December 27,2021.

Fire is ruthless, fire prevention, must go first! The harm caused by fire to people is unimaginable. Among all kinds of disasters, fire is one of the main disasters that most often and most commonly threaten public safety and social development. There are too many factors such as living habits, weather temperature, and seasonal changes that can induce fires, so fire prevention is necessary. In the brush industry, the flame retardant function is also given to the brush. Do you know the flame retardant standard of the escalator brush?


The escalator brushes are mostly made of plastic filaments, and the flame retardant grades of the plastics are HB, V-2, V-1 and V-0.


HB grade: It is the lowest flame retardant grade in the UL94 standard. For samples with a thickness of 3 to 13 mm, the burning rate is less than 40 mm per minute; for samples with a thickness of less than 3 mm, the burning rate is less than 70 mm per minute; or extinguished before the 100 mm mark.


V-2 level: After the sample is subjected to two 10-second burning tests, the flame is extinguished within 60 seconds. There may be burning objects falling off.


V-1 level: After the sample is subjected to two 10-second burning tests, the flame is extinguished within 60 seconds. No burning objects should fall.


V-0 level: After the sample is subjected to two 10-second burning tests, the flame is extinguished within 30 seconds. No burning objects should fall.


The flame retardant grade is gradually increased from HB, V-2, V-1 to V-0.


Aoqun Brush Co., Ltd. is a high-quality and large-volume custom-made brush production enterprise. The supplied brush products have reached the V-0 technical requirements and passed the inspection by the authoritative organization. The brush products are all made of new pure material and the product quality is guaranteed.  Aoqun's escalator brushes have also contributed to well-known projects such as Beijing Subway, Wuhan-Guangzhou High-speed Railway, Guangzhou-Zhuhai Light Rail, and Hong Kong Subway.


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