Flame retardant grade description of flame retardant PC board
Flame-retardant PC board flame-retardant grade, the flame-retardant PC sheets has the obvious characteristics of preventing the spread of flames after being manufactured, and is the level of this division. The flame retardant grades of plastics are gradually increasing from HB, V-1, V-2 to V-0: 1, V-0: After conducting two 10-second ignition tests on the test product, the flame will be extinguished within thirty seconds Drop. No burning objects should fall. 2, V-1: After conducting two 10-second ignition tests on the sample, the flame is extinguished within 60 seconds. No burning objects should fall. 3, V-2: After conducting two 10-second ignition tests on the sample, the flame is extinguished within 60 seconds. There can be burning objects falling. 4, HB: The lowest fire rating in the UL94 limit. It is stipulated that for samples with a thickness of 3 to 13mm, the ignition rate shall be lower than 40mm per minute; for samples with a thickness of less than 3mm, the ignition rate shall be lower than 70mm per minute; or be extinguished before the 100mm mark.
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In various different types of custom plastic sheets, custom plastic sheets custom polycarbonate sheet is one of the most commonly used.
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