Painting a GPU backplate.

[Kevin_Walter]

What exactly should I use in order to avoid changing thermal performance or color warping from heat?

I have a Sapphire Pulse Vega 56. Love this card, but I've grown tired of the red accents on it when the rest of my components are black and have RGB LEDs. The only red accents I need to change are the red led behind the pulse logo which is easy enough to disconnect, and the red designs on the backplate.

The backplate is super easy to remove and paint. Just want to make sure I'm not going to affect performance in any way whatsoever. I know most people use plastidip for this stuff because it's easy to remove in case you don't like it, so that's what I intend to do... but is there a better option?

[Bombastinator]

If all you want to do is remove color a wire wheel would do so and leave shiney metal behind.  Not sure it’s better though.

[Kevin_Walter]

1 hour ago, Bombastinator said:

If all you want to do is remove color a wire wheel would do so and leave shiney metal behind.  Not sure it’s better though.

Nah, I don't want to strip it down to bare metal. I want to black out the backplate so it matches the rest of my build.|

I just want to have all of my bases covered. If there's a better option than plastidip, I'd like to know about it.

[OrdinaryPhil]

Depends on your location and what services you have access to.

For example, there is a metal shop in my town that will powder coat parts for a fee. For $10 they could easily powder coat aluminum or steel in their ovens. It's cheap, effective, and doesn't meaningfully alter the thermal properties of the metal.

[Mick Naughty]

Doubt any paint is gonna effect anything. Especially if it’s a bad design. 
Just scuff it up and paint it. Nothing to worry about. 
 

If you think there’s any real concern, take some temp readings before and after. 

[Jason 57]

Maybe use some self etching primer and then a color metallic paint you like over that???