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Latest company case about Shenzhen Hanast New Material co.,LTD Certifications

Q: What is the difference between UL94 V-0 and HB flame retardant ratings?

2025-10-14

Latest company case about Q: What is the difference between UL94 V-0 and HB flame retardant ratings?

A: V-0 is the highest flame retardant grade, which will be extinguished within 10 seconds after flame removal and no burning material will fall. HB is the lowest grade, which can only burn slowly. The choice depends on the safety requirements of the product.