Review on 3M Bare-Metal Seam Sealer (08310): Beige Two-Part Non-Sagging Self-Mixing Epoxy - 200 ml/6.75 fl oz Cartridge by Sean Sitton

This is the best! Buy extra blending tips and add acid brush to the tool. I cut acid brushes to about 1/4 inch. Use the degreaser on the brush to apply sealant to the seams. You have to take it off within a minute because it works pretty fast. Work in short chunks and don't drop too much or it will spoil quickly. A small bead is beautifully smoothed and smoothed with a light stroke of an acid brush. Do not apply over self-etch primer. See TDS for substrate information.