3M™ Fast 'N Firm Seam Sealer is a fast setting seam sealer designed for sealing exterior joints and seams. Our sealer adheres well to clean primed or painted metal. This product comes in a 450 ml cartridge. If saving time and boosting productivity are important, this seam sealer is an ideal choice. It is paintable in only 45 minutes.
When both fast action and quality results are important, 3M™ Fast 'N Firm™ Seam Sealer is a preferred choice. This firm setting product can seal a variety of external automotive joints and seams. With its high solids and low shrinkage properties, our sealer provides predictable and reliable results. You'll have a work time ranging from 5 to 10 minutes. It quickly skins and cures quickly. In fact, it cures so quickly that you can often paint in as few as 45 minutes, so there is less downtime in waiting for the sealer to fully cure.
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