Metal Glue Heavy Duty Waterproof, AB Super for Metal, Heat-Resistant, 1

1.5 hours initial solidifying, 24 hours complete solidifying. After it is fully cured, it is as hard as iron and provides a uniform adhesive layer thickness with strong adhesion. Adopting a 1:1 press mixing design, you don’t have to worry about inaccurate mixing ratios resulting in failure to cure.

eBay