COVID-19 Response Products - New items added daily to restart your business, plus keep your customers and staff protected from the coronavirus.

3M Ultrapro MSP Sprayable Seam Sealer - 08374

SKU #3M-08374
• For sealing body joints
• Can be caulked or sprayed
• High-solids, gray seam sealer
  • Description
  • Reviews
  • Tech Sheets

Non-Shrinking, Non-Cracking & Fast Curing

The 3M Ultrapro MSP Sprayable Seam Sealer is a gray, high performance and general purpose seam sealer that can be caulked or sprayed. It adheres well to all primed surfaces, except acrylic lacquer. It is perfect for use on door skins, hemming flanges, quarter panel seams, and floor and trunk pans.

It doesn't shrink or crack and is fast curing. It is tack-free in 30 minutes and is immediately paintable, and the applicator gun allows for easy adjustment for a variety of spraying patterns. The sealer comes with extra applicator tips as a bonus.

The 3M Ultrapro MSP Sprayable Seam Sealer is a high solids sealer that cures moisture, and can also be used as a sound deadening coating. It provides a fast method of sealing any seam where a sprayed or coated appearance is necessary. It has a very low solvent percentage and an excellent shelf life. This sealer produces a bead, sprayed seam or a sprayed coating appearance.

With the 3M sealer, multiple appearances can be achieved with just one gun and sealer combination. Bond failure opportunity is minimal, and the vehicle can be moved for painting immediately. It is usable for longer periods and is effective even when it comes in contact with alcohol-containing solvents.

Key Features of the 3M Ultrapro MSP Sprayable Seam Sealer - 08374:

  • High performance and general purpose
  • Can be caulked or sprayed
  • Adheres well to most primed surfaces
  • Non-shrinking, non-cracking, fast curing
  • Tack free in 30 minutes
  • Immediately paintable
  • Applicator gun allows easy adjustment


  • One 10.5 oz. cartridge
  • Extra applicator tips

Technical Specifications

  • Color: Gray
  • Density: 13lb/gal
  • Flash point: 144°F
  • Viscosity: 500,000 CPS
  • Service Temperature: -20°F-200°F
  • Solids Content: 97%

This item can only ship by ground within the Continental US.Next Day or 2nd Day, AK & HI, & International delivery not available.

WARNING WARNING: Cancer and Reproductive Harm -

Sign up for our Email Newsletter

By using this website, you agree to our use of cookies to analyze website traffic and improve your experience on our website. Learn More