Static field route #308

What do I do when thin bead of mastic not bridging gap?

Sealing, Leakage, Mastic & Pressure Testing.1 field-polished — seal/test detail check

A thin bead is not always enough. If the gap is too wide or the joint is moving, fix the joint or ask for the approved seal method.

Field checklist

This gap is wider than a normal bead. Do you want the joint fixed or sealed with a reinforced method?

Do not paint a skinny line over a gap and call it sealed.

Sealant needs enough contact and support to bridge the leak path.

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