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Hi @eriswa,
If you've rubbed back the rusty spots to bare metal, you're ready to apply the paint according to the instructions. If a separate primer is required, it would state it in the instructions. Not all paints require primers as they include bonding agents within the paint.
After the weekend, I'd be happy to contact White Knight for you to confirm that a separate primer is not required. I can't advise using a separate primer at this stage, as it would contradict their instructions. I'd also be concerned about the compatibility of the primer with their product.
Mitchell
Many thanks for your patience, @eriswa.
I've been able to confirm that unless you're painting the whole panel of a fridge that is currently bare metal, then there is no need to prime the area. If you are still at all concerned, you can use an SLS Etch Primer on the exposed metal portions.
Please let me know if you have any questions.
Mitchell
Hi @eriswa
I'm glad you received excellent advice from my colleague @MitchellMc. You can't go wrong using SLS Etch Primer, it is formulated to give a very good surface for spray paint to bond onto.
Please keep us updated with your progress, we look forward to seeing your fridge freshly painted.
Eric
HI Eric I finally finished the painting though the weather wasn't the best for it. I ended up using Rustoleum instead of WK, due to unfavourable reviews on WK. I ended up doing 4 coats as some of the very bad rust spots I rubbed back didn't cover. I started a 5th on one side and and it bubbled in a few spots so I stopped doing the rest. I sanded it back and left it as it is, quite happy with the overall result though. Being a spare in the garage so I wasn't too fussed.
Sending you some pictures. Thanks once again. Cheers
Hello @eriswa
Thank you very much for posting those photo updates of your fridge. Your spray painting looks good and the fridge looks brand new again. Wrinkling is often caused by unequal drying during the painting process. From the surface, it looks like the paint is, but underneath that dry surface, the paint is still wet. When a new coat is applied the semi-dry paint moves as it continues to dry causing wrinkling to occur.
My only tip is to give the paint a few extra days to dry off, one of the best ways to tell is to gently touch the surface of the paint and if it feels like it's sinking the paint underneath is still wet. Don't be tempted to use a hairdryer or a heat gun as these tools will only dry off the surface and not cure the paint underneath.
Again, thank you for sharing your fridge painting project.
Eric
