Would this work on a evaporator? Need to seal a small leak

Yes it would . However, if your evaporator is leaking in one spot due to old age and corrosion, the rest is not far behind. Replace it. If you punctured the core and its in good shape then by all means.

Mastercool 90935 Alum Bond Aluminum Repair Compound High Strength Aluminum

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VT8423

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔩 Fix it once, fix it like a pro — Mastercool Alum Bond seals the deal!

PRECISION MACHINABILITY - Drill, sand, or tap repairs post-cure—no costly part replacements needed.
HEAT RESISTANT DURABILITY - Engineered to endure up to 250°F, perfect for automotive and HVAC environments.
INDUSTRIAL GRADE STRENGTH - Withstands 8,600 PSI compressive and 3,500 PSI tensile forces for rock-solid repairs.
VERTICAL OVERHEAD READY - Non-sag formula stays put on tricky surfaces for flawless application every time.
TRUSTED PROFESSIONAL QUALITY - Mastercool’s proven formula ensures reliable, long-lasting fixes trusted by pros.

Mastercool 90935 Alum Bond is a high-strength, aluminum-filled epoxy designed for permanent repairs on aluminum castings, radiators, tanks, and engine components. Boasting 8,600 PSI compressive strength and machinability after curing, it offers durable, heat-resistant fixes with a non-sag formula ideal for vertical applications. Trusted by professionals, it delivers precision and reliability in demanding automotive and HVAC repairs.

Specifications

ASIN	B00CDDA1OW
Best Sellers Rank	#26,102 in Automotive ( See Top 100 in Automotive ) #81 in Air Conditioning Line Repair Tools
Brand	Mastercool
Customer Reviews	4.5 4.5 out of 5 stars (42)
Date First Available	April 16, 2013
Is Discontinued By Manufacturer	No
Item Weight	7.2 ounces
Item model number	90935
Manufacturer	Mastercool
Manufacturer Part Number	90935
Model	90935
Product Dimensions	6 x 3 x 2 inches
Special Features	High Concentration of Aluminum Particles, Maximum Strength, Durability, and Ease of Application

Reviews

A**M

2.12.2025

C**K

14.11.2025

M**A

23.07.2025

J**A

31.10.2025

A**A

11.02.2024

B**3

9.12.2021

D**K

16.02.2025

B**K

13.11.2024

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