How to repair peeling epoxy coating?

[ebdel]

Hi everyone, we used the DY-Mark 8L Carrara Grey Epoxy Coat Garage Floor Kit on our garage floor about 2 years ago, following all preparation and application instructions carefully (etching, cleaning and allowing full cure time). Overall it has held up well, but we’ve recently noticed the coating lifting specifically in spots where car tyres turn when we straighten/adjust parking (yes I know we shouldn't bit unfortunatley we have).

I understand that hot tyre pickup can happen, although it’s not something we do often. The lifting is only in several small patches, not the whole floor.

Could you please advise:

How to repair only the affected areas without redoing the whole garage floor?

Whether you recommend a particular prep and touch-up method (e.g. sanding, re-etching, primer, recoat)?

If a topcoat or sealer is recommended to help prevent this happening again.

Photos attached for reference. Thanks in advance for your help!

Current peelingFreshly laid.

[JacobZ]

Hi @ebdel,

Welcome to the Bunnings Workshop community, it is wonderful to have you with us.

The advice I would give is more or less in line with what my colleague @MitchellMc has said in the discussion How to fix missing concrete floor epoxy?

Unfortunately, as epoxy floor paint forms a continuous layer across the whole surface, a patch repair is likely to be noticeable. The best solution would be to remove the whole coating and repeat the process, but obviously, this would be a lot of work at a reasonably high cost.

Grinding back the affected area and then repeating the preparation steps before recoating the patch should be possible, although it may be noticeable against the existing paint.

I would encourage you to reach out to the Dy-Mark Technical Team directly for their guidance, as they would have dealt with this kind of issue before, and they would be the best placed to recommend a suitable solution.

Let me know if you have any further questions so I can assist further.

Jacob