Search  for anything...

Akfix P645 Metal Roof Polyurethane Sealant- Construction and Automotive Seam Sealer for Glass, Wood, Plastic and Aluminum, Flexible Metal Gap Filler, Paintable Bonding | 1 Pack, Gray, 10.4 Oz.

  • Based on 112 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $2 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by WiosChem

Arrives Nov 20 – Nov 24
Order within 8 hours and 40 minutes
Available payment plans shown during checkout

Item Package Quantity: 1


Color: Grey


Features

  • Powerful Component Properties of polyurethane sealants, such as hardness, adhesion strength, thixotropy, and flexibility, can easily be modified to meet needs. Compared to other components, this metal sealer may reach very high mechanical and adhesion strength levels.
  • Durable Performance Especially designed for body construction of cars, containers, caravans and projects that require durability in the automotive and construction industry.
  • Automotive-Construction Materials Akfix P645 metal gap filler has excellent adhesion to sheet iron, aluminum, stainless steel, lead, copper, ceramic, glass, wood and various plastic and metal materials. Joint surfaces must be dry, clean and free of all contamination.
  • Easy to Gun Tooled easily with a caulk gun and cut open the cartridge and cut off the tip at the desired angle. Insert cartridge of this construction sealant in gun and fill the sealant bubble-free continuously into the joint. Smoothen it by pressing with a spatula or similar apparatus.
  • Paintable Sealant It provides waterproof sealing and bonding with a paintable feature at home project and roofing.

Material: Polyurethane


Brand: Akfix


Style: Compact


Item Weight: 14.08 Ounces


Item Dimensions LxWxH: 1.96 x 1.96 x 9.44 inches


Product Dimensions ‏ : ‎ 1.96 x 1.96 x 9.44 inches; 14.08 Ounces


Item model number ‏ : ‎ Akfix-P645-1-Pack-Grey


Date First Available ‏ : ‎ August 23, 2022


Manufacturer ‏ : ‎ Akfix


Country of Origin ‏ : ‎ Turkey


Best Sellers Rank: #85,565 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #315 in Adhesive Caulk


#315 in Adhesive Caulk:


Customer Reviews: 4.7 4.7 out of 5 stars 112 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 20 – Nov 24

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
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works great I would buy again
Item Package Quantity: 3 Color: Black
Used as a seam sealer on my rat rod truck. Wear latex glove's. Clean up with denatured alcohol. This feels like. Silicone but paintable
Reviewed in the United States on August 19, 2023 by DOUG LOOS DOUG LOOS

  • Good product
Item Package Quantity: 3 Color: Grey
My husband is happy with his purchase.
Reviewed in the United States on August 25, 2023 by Kristina

  • Repaired my teardrop after a bear attack
Item Package Quantity: 2 Color: Grey
A large black bear tried everything he could to get into my teardrop on a recent visit to the Smoky Mountains. In the process, he tore off the waterproof rubber flashing that covers the hinge on the back hatch. What a mess! After removing all the old material and caulking, I installed a new one with this sealant and feel confident it will do the job. It's the exact same compound recommended by NuCamp, the mfr of my Silver Shadow. One note, this stuff is pretty thin and very gooey out of the tube, but cleans up great with alcohol (I used pure 200 proof made for indoor fire pits). It dries in 24 hours with a similar rubbery consistency to silicone which is exactly what you want on a seam that has movement. If I have any issues I will update this review. For now, 5 stars! ... show more
Reviewed in the United States on January 12, 2023 by NashGrasser NashGrasser

  • Perfect replacement, Really!
Item Package Quantity: 2 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 Amazon Customer

  • This stuff works
Item Package Quantity: 2 Color: Black
Very strong adhesive. Had a sky light that had a tiny leak during the rain. Rather than go out on the roof to fix it, I used this Akfix polyurethane on the interior perimeter. I squirted one single line around the entire edge of the metal glass frame and dried it with a cordless hair dryer. It worked fabulously. Since applying the sealant, we have had 4 days of continuous hard rain and not a single drop of water has come through the ceiling. Awesome product! ... show more
Reviewed in the United States on March 30, 2023 by Pharm Kat

  • Good stuff
Item Package Quantity: 3 Color: White
I've used a fair amount of this sealer over the years. I've never been disappointed.
Reviewed in the United States on July 4, 2023 by Amazon Customer

  • Other people experience with it
Item Package Quantity: 3 Color: Grey
To repair the enclose porch in my house
Reviewed in the United States on June 21, 2023 by Blanca

  • This Product is terrible.
Item Package Quantity: 3 Color: Grey
This Product is terrible. I had it for over a month before i used it, and it would not come out of the tube after i punched a whole in the spout When i went to use it. They would not let me return the 3 tubes of seam sealer. So I lost $37.50. DONT BUY THIS PRODUCT
Reviewed in the United States on September 30, 2023 by david Lefko

Can't find a product?

Find it on Amazon first, then paste the link below.