I may have made a mistake!

[In The Ten Ring]

In my zeal to prevent any future rust inside of my truck's heater box, I painted the back piece of the box, the shiny (rusted in my case) thin metal piece that was riveted to the box and shields the inside heater flap.

It's been hit with NAPA Rust Treatment and two coats of Krylon Primer. If I paint it with indoor and outdoor Krylon topcoat (silver) will it

1). Stand up to the temperatures of the heater core since this piece touches the heater core?

2). Will the paint produce smelly or dangerous fumes whenever I turn on the heater?

***

3). If the answer to #1 is "no" then should I use Krylon Engine Enamel and if so, would it produce smelly or dangerous fumes whenever I turn on the heater?

[Fitz]

Originally Posted by In The Ten Ring

In my zeal to prevent any future rust inside of my truck's heater box, I painted the back piece of the box, the shiny (rusted in my case) thin metal piece that was riveted to the box and shields the inside heater flap.

It's been hit with NAPA Rust Treatment and two coats of Krylon Primer. If I paint it with indoor and outdoor Krylon topcoat (silver) will it

1). Stand up to the temperatures of the heater core since this piece touches the heater core?

2). Will the paint produce smelly or dangerous fumes whenever I turn on the heater?

***

3). If the answer to #1 is "no" then should I use Krylon Engine Enamel and if so, would it produce smelly or dangerous fumes whenever I turn on the heater?

Even with a 230 degree thermostat the heater core can't get hot enough to cause a problem with that paint but...it may boil off any remaining solvents so it might smell just a bit the first time you use it.

[In The Ten Ring]

Originally Posted by Fitz

Even with a 230 degree thermostat the heater core can't get hot enough to cause a problem with that paint but...it may boil off any remaining solvents so it might smell just a bit the first time you use it.

Which paint Fitz?

[71swb4x4]

I think you will be fine no matter which paint you use. It's not getting super hot.

[leftybass209]

I couldn't see the paint causing a problem. There's no need to go crazy with the paint, it needs a light barrier against moisture, not a barrier against UV.

[toolboxchev]

Rustoleum Hammerite!

[In The Ten Ring]

Thanks guys. I'll just use regular paint then and save the engine enamel for later.