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The H-450 Alumbond 6.5 oz Aluminum Putty Repair Kit is a high-viscosity, two-part epoxy putty formulated with pure aluminum particles for superior metal bonding. Designed for professional-grade repairs on aluminum HVAC pipes, radiators, engine blocks, and more, it offers a non-rusting, non-magnetic finish that can be drilled, tapped, sanded, and painted. Made in the USA, this kit delivers precision application with minimal waste and cures to a durable, medium-gray finish favored by tradesmen and mechanics alike.

| ASIN | B001RMITIA |
| Best Sellers Rank | #90,237 in Automotive ( See Top 100 in Automotive ) #96 in Body Repair Putty #1,034 in Body Repair Tools |
| Brand Name | HY-POXY |
| Color | gray |
| Compatible Material | Aluminum |
| Container Type | Tube |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,380) |
| Global Trade Identification Number | 00683873444500 |
| Item Form | Putty |
| Item Package Quantity | 1 |
| Item Weight | 7.04 ounces |
| Manufacturer | HY-POXY |
| Material Type | Epoxy |
| Model | H-450 |
| Other Special Features of the Product | Epoxy metal weld for aluminum, Repairs HVAC, radiators, engine blocks, boat hulls, equipment, appliances, Non-rusting, non-magnetic, aluminum gray color |
| Specific Uses For Product | Repair, Metalworking |
| UPC | 683873444500 |
| Unit Count | 6.5 Ounce |
| Viscosity | High Viscosity |
| Volume | 191.73 Milliliters |
| Water Resistance Level | Water Resistant |
S**M
Excellent product
This aluminum bonding agent worked just as described. Weighed out the two parts on an electronic scale (in grams), stirred with a popsicle stick for the designated 3 minutes, then used within the 60-minute pot time. My application was a bit awkward for the somewhat runny consistency right after the 3 minutes of stirring, as I was using it to fill holes drilled in vertical parts of an aluminum driveway gate. I could have waited until nearer the end of the 60-min use-by time, but was uncertain how quickly it would harden at that point, so decided to just come back after the curing time of 4-5 hours and gave the larger holes a second filling. Seems to be VERY strong. Un-sanded, the product is smooth, shiny and a medium grey. Sands easily with a sanding disk in an angle grinder, and even with sand paper by hand. I used 12 gms of each part the first time, 9 gms for the final coat, so still have half tubes left for other projects. Very pleased with this product and would buy again if needed.
B**E
fixed a lot
Fixed a lot of broken things with this adhesive. Very helpful.
A**R
Thought I was going to have to buy a new aluminum wheel. Stuff really works!
Of all the stuff I buy on Amazon, I've only written a couple of reviews, but I am so impressed. I had a crack in my aluminum wheel on the outer lip, caused by a pothole according to my tire guy. Losing about 10 psi a day, I thought I'd have to buy a new wheel, or have mine welded. Found this epoxy and for about 30 bucks, I had nothing to lose. With the tire off the wheel, drilled a tiny hole at the edge pf the crack all the way through the wheel (very nerve racking!) then filled it all in with the epoxy. Sanded it down smooth the next day and had the tire remounted. NO LEAKS! The real test though is that I've since driven hundreds of miles on Tucson (run by democrats) roads which really beats the wheels and tires, not to mention the entire car and the driver. Some sections of road are so awful it's actually difficult to maintain control your car, so this stuff obviously holds up under abuse. So glad I bought it!
S**P
Easy to Work With
The Hy-Poxy Alumbond spreads easier and is easier to sand vs. JB Weld. Also, I like the product for aluminum repair because it is made specifically for that application. I used it on my 56 Dodge original sill plates to fill holes and it worked great!
R**N
Worked good
Broke aluminum engine fin off motorcycle engine. Takes forever to cure but is very strong. Was able to sand and paint and you Never know it was broke. It does dry darker then normal aluminum.
J**A
Did what it was supposed to do.
I bought this product after JB let me down. I had a cracked door frame on my RZR. When I say cracked i mean completely separated Look, I’m not an exact measurement kind of guy when it comes to this stuff. I squeezed what looked like equal portions onto a piece of cardboard. Found a clean broken piece of trim . Mixed up the solution for maybe a minute. Directions say 3. The epoxy is a little runny but not that bad. If you needed it to flow into a space it would with the help of gravity. It’s not going to pour like oil. I then put it on the cracked area with the broken stick. Smeared it around cover the crack and other area. Kept the kids away for a bit and 3 hrs later I checked it. Some of the solution flowed into the cracks and you could see a partial outline. 5 hours later I mixed up more in the same order and speared it on. Let sit over night. This morning went out there, checked the area. Dried solid. I opened the door and slammed it 10 times in a row. The solution did not crack and the door was holding up good. I’ll report back if it breaks.
A**R
It's ok.
It was easy to apply and mix. It held some what but ultimately failed in my application. It was a tough spot and there was a good amount of force so it may just have been what I was using it for required a full replacement instead of a repair.
B**S
Amazing product
Amazing stuff, used this to fix a missing piece of metal from an alternator housing. Actually drilled and tapped area with bolt tightened to spec
A**N
غراء قوي وصلب لسد الفتحات وعيبه لاينشف بسرعة يحتاج إلى ساعات
E**S
El producto es bueno , indica en las instrucciones que al cabo de una hora seca y no es así aún está húmedo , pero todo esto depende del grosor que se ponga , al final del día lo deje casi secar por 12 hrs y compraré la dureza con otro tipo de pasta y está es muy fuerte .
M**H
Muy bueno y no lo habia podiso encontrar llego super rapido
Trustpilot
2 days ago
3 weeks ago