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Duo Safety Ladder Corp Heat Sensor Label 500/rl
Supplier: Duo Safety Ladder Corp HSL500
These labels are heat sensitive material that turns black if any heat is ever present that is greater than approximately 300 degrees F. The 300 degree F temperature is used because once aluminum fire ladder materials (6061-T6 alloy) reach this 300 degree F (even if only for a moment), the ladder material may have lost at least 25% of its load capacity. This heat exposure effect is not reversible in the ladder and can continue to accumulate over its entire lifetime. 500/rl
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