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Fire-Rated Access Panel
Fire-Rated Access PanelCritical for fire-resistance-rated walls and ceilings, these panels maintain the required hourly rating (e.g., 1–2 hours) when installed with intumescent seals and proper framin...
2026.08.31
Different grades are mainly distinguished by burning time, dripping and burning through:
Extinguishing time: V-0 requires that the fire source be extinguished quickly within 10 seconds after being removed, and V-1 and V-2 are allowed to be extinguished within 30 seconds. Drops: V-0 and V-1 are not allowed to ignite the cotton below, and V-2 is allowed. Burn-through resistance: Grade ：5VA samples cannot be burned through, and Grade 5VB allows pinholes.
