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Akfix P645 Seam Sealer Automotive Gray (12x10.1 Oz.) - Urethane Autobody Seam Sealer Adhesive for Metal Joints, RV Roof Sealant, Sandable, Paintable, Fast Curing and Durable Bonding | Gray, 12 Pack

  • Based on 93 reviews
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Availability: In Stock.
Fulfilled by WiosChem

Arrives Tuesday, Aug 11
Order within 11 hours and 30 minutes
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Size: 12 Pack


Color: Gray


Features

  • SEAMLESS ADHESION WITH AUTO BODY SEAM SEALER: Akfix 647FC is the ultimate seam sealer for automotive professionals. Perfect for car seam sealing, it delivers a smooth, over-paintable, and sandable finish for a professional-grade look after full curing.
  • BRUSH-ON SEAM SEALER WITH EXCEPTIONAL DURABILITY: Designed for demanding applications like car body seam sealer tasks and RV roof sealant projects, this high-performance sealant resists aging and guarantees long-lasting durability in tough environments.
  • NON-SAG AUTOMOTIVE SEALANT FOR PRECISE APPLICATIONS: With a thixotropic, non-stick formula, Akfix 647FC ensures effortless application without mess. Whether as an automotive seam sealer or RV roof repair tool, its clean finish keeps surfaces pristine.
  • OPTIMAL PERFORMANCE IN EVERY USE: Akfix P647FC offers exceptional adhesion to materials such as sheet iron, aluminum, stainless steel, copper, ceramic, and wood. For best results, ensure surfaces are dry and clean before use. Maintain the can at 68F for consistent performance in any climate.
  • READY-TO-USE PAINTABLE AUTOMOTIVE SEAM SEALER: Packaged in a user-friendly cartridge, Akfix 647FC works seamlessly with electric, pneumatic, or manual guns, offering superior convenience for any automotive sealant or RV sealing project.

Description

Starting its operations in the chemical construction field in 2001, Akfix focused on developing life-esteem chemical products and technologies to create permanent solutions for customer needs. Developing different products for different customer needs, Akfix serves its customers a wide product range. Professionals and amateurs all over the world are preferring Akfix products for more permanent and fruitful outcomes. Visit the Store DIY APPLICATIONS PROFESSIONAL APPLICATIONS

Brand: Akfix


Specific Uses For Product: Furniture, Carpentry


Material: Polyurethane


Item Form: Paste


Special Feature: Waterproof


Specific Uses For Product: Furniture, Carpentry


Item Form: Paste


Other Special Features of the Product: Waterproof


Container Type: Cartridge


Water Resistance Level: Waterproof


Viscosity Level: High


Compatible Material: Aluminum, Ceramic, Copper, Glass, Metal, Plastic, Stainless Steel, Wood


Item Package Quantity: 12


Volume: 9.4 Fluid Ounces


Material Type: Polyurethane


Color: Gray


Brand Name: Akfix


Model: Akfix-P645-12-Pack-Grey-FBA


Unit Count: 121.2 Ounce


Number of Pieces: 12


Manufacturer: Akfix


Part Number: Akfix-P645-12-Pack-Grey-FBA


Item Weight: 11.1 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
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  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great product,great value and very fast delivery 🚚
Size: 12 Pack Color: Black
Everything was excellent 👍
Reviewed in the United States on July 21, 2025 by Jay Hall

  • Sets up fairly quickly.
Size: 12 Pack Color: Black
I bought a seam sealer for my skoolie build. Raised the roof and added galvanealed siding. It flows nicely at the right temp, but sets quickly. It takes me 4 hours for 288 rivets, so I'm having to load up on clecos to fully clamp the sheet against the hat channel. Priced right
Reviewed in the United States on October 16, 2024 by T. Jones

  • Good quality
Size: 12 Pack Color: White
I use this for sealing seams on Sunroom roofs, easy to apply (keep warm) stay flexible.. I had a couple of bad tubes out of two cases. Great price, I was buying from sunroom MFR and they are double $$
Reviewed in the United States on January 21, 2024 by peter nelsen

  • It come out of tube smoothly.
Easy to work with.
Reviewed in the United States on June 16, 2025 by too tall36

  • Great stuff
Size: 12 Pack Color: Black
Works great , just what I needed
Reviewed in the United States on March 7, 2025 by Deano

  • Great product
Size: 12 Pack Color: Black
Easy to work with, perfect consistency. Dries hard in 24 hours, durable
Reviewed in the United States on October 27, 2024 by Amazon Customer

  • Perfect replacement, Really!
Size: 2 Pack Color: White
Works perfe t. No other parts required. Took 15 minutes to do and fixed numerous problems. Old valve turned so hard and was half blocked by twisted up O rings. Water pressure is a little better and camper pump works as it should too. VeryHappy!
Reviewed in the United States on June 6, 2023 by Frank Leslie

  • NOT suitable in Automotive bodywork aplications.
It is NOT fast curing. Takes more than 24 hours for a 1/8" bead. Its messy and not user friendly. If you are thinking of using it to replace traditional butyl automotive type sealer, dont. It takes aggressive solvents to clean it off fingers or anything else. It may be great for HVAC and other type work, but NOT for automotive bodywork. ... show more
Reviewed in the United States on March 4, 2025 by Steve

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