Sealant Cure Time Before Pressure Test

Sealant and mastic need time to skin/cure before pressure testing or covering, especially when applied thick or in cold/wet conditions.

Stop if

• How long does this sealant need before pressure test or insulation, given today's temperature and thickness?

Watch out

• Do not pressure test wet sealant. Do not bury uncured mastic under insulation without checking cure conditions. Do not assume every bucket cures the same.

Check

• Product data sheet, temperature, humidity, thickness, and whether the joint is fully skinned before testing or insulating.

Steps

• Product data sheet, temperature, humidity, thickness, and whether the joint is fully skinned before testing or insulating.

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