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🛠️ Master the bond that professionals trust — don’t let leaks hold you back!
Mastercool ALUM BOND 6.5OZ/184G is a professional-grade aluminum bonding compound designed for automotive and HVAC/R applications. It delivers a strong, weld-ready bond that ensures airtight, pressure-resistant seals, trusted by specialists for reliable, OEM-quality repairs.





| ASIN | B00CDDA1OW |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.5 4.5 out of 5 stars (41) |
| Date First Available | 19 April 2013 |
| Item Package Quantity | 1 |
| Item Weight | 204 g |
| Item model number | 90935 |
| Manufacturer | Mastercool |
| Part number | 90935 |
| Power source type | Corded Electric |
| Product Dimensions | 15.24 x 7.62 x 5.08 cm; 204.12 g |
A**M
This stuff really does contain aluminum! I used it for a client project that needed to be electroplated, and the metal components could be welded or otherwise soldered together, so I used this stuff and voila! Super strong bond and no electroplating trouble at all!
C**K
Works great! I had a hole in a high side AC line on a Chrysler Pacifica. After repair the system is sealed and holds pressure.
M**A
Sello la fuga de condenser...y volvió a funcionar!!!
J**A
Lo he usado para reparar ollo en bandeja de hornear y fue todo un éxito
A**A
Used it to adhere bumper cover, and door handle covers to my car as I was blacking them out. It's held up for over 6 months through the heat, cold, rain, and wind. I do occasionally hear a bit of cracking when it's really cold but it's still on there. Edit- after a few years of having this hold my bumper and handle covers to my car- I totaled my vehicle by hitting a deer. The bumper flew off into the road and the cover stayed on! This stuff sure does have a strong hold.
Trustpilot
1 day ago
2 months ago