3M 08374 - MSP Sprayable Seam Sealer (Grey, 10.5oz)
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Orders ship same or next business day. Free shipping on orders over $50. Orders under $50 ship for a $10 flat rate. Priority shipping available at checkout for $20.
Product Description
3M 08374 MSP Sprayable Seam Sealer (Grey, 10.5oz) is a professional-grade automotive seam sealer engineered for structural and cosmetic seam sealing in collision repair. Sprayable formula applies by spray gun or aerosol over large seam areas — ideal for rocker panels, floor pans, and any area requiring full-coverage seam protection across wide surfaces.
MSP chemistry provides superior long-term adhesion to bare metal, e-coated, primed, and painted substrates with the flexibility to resist cracking from panel vibration and thermal cycling throughout the vehicle's service life. Grey-colored formula matches common OEM seam seal color profiles for a factory-appearance repair. Paintable after proper flash time — finish with any topcoat system.
- Type: MSP Sprayable Seam Sealer
- Color: Grey
- Volume: 10.5oz
- Application: Spray gun / aerosol
- Substrates: Bare metal, e-coat, primer, painted surfaces
- Paintable: Yes, after flash time
- Country of Origin: USA
- Part Number: 08374
Part of 3M's comprehensive seam sealer line covering every seam type and application requirement. Match the flow type to the seam orientation — self-leveling for horizontal, heavy-bodied for vertical and overhead. Sold individually.
Technical Specifications
| Part Number | 08374 |
| Color | Gray |
| Size | 10.5 oz |
| Weight | 0.8 lbs |
| Application | Spray-applied seam sealing, sprayable body seam waterproofing, OEM-match sprayable seam sealer |
| Coverage | Varies by application and surface condition |
| Shelf Life | 1 year from manufacture date |
| Country of Origin | USA |
| SKU | 3M-08374 |
| Brand | 3M |
| Product Type | Primer & Sealer |
Shipping & Returns
Shipping
- Orders ship same or next business day
- Free shipping on all orders over $50
- $10 flat rate shipping on orders under $50
- Priority shipping available for $20
Returns
- 30-day return policy on unused, unopened items
- Contact our support team to initiate a return
- Refund issued within 5 business days of receiving the return
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