Thin bead of mastic not bridging gap

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.

Stop if

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

Watch out

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

Check

• Check if the gap is from bad fit-up.
• Tighten/seat the joint first if allowed.
• Use approved seal width/thickness, not a decorative smear.
• Ask if fabric reinforcement or repair is required.
• Recheck after cure if the joint was stressed.

Steps

• Check if the gap is from bad fit-up.
• Tighten/seat the joint first if allowed.
• Use approved seal width/thickness, not a decorative smear.
• Ask if fabric reinforcement or repair is required.
• Recheck after cure if the joint was stressed.

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