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edge of high gloss slab doors5/25
I'm working on a kitchen that will have a high gloss 2k Urethane finish. The doors are MDF slabs and I'm going back and forth over just hand breaking the edges, or using a 1/16th roundover.
1 vote for routing. Breaking by hand means different things to different people. Anyone can route, but not everyone has the control to avoid taking too much off at the corners.
once i was doing a coffered ceiling and decided to just hand break everything on site as i was building.
High gloss on MDF brings back a couple of bad memories. Learning how to seal the edges, then having some kind of pattern on the faces from the MDF factory process. It looked a bit like a wave pattern that could not be felt, but showed up in the reflection in the finish. I had no idea I would have had to sand the faces before finishing. It was gloss black, so worse case scenario. A huge sigh of relief when the customer was okay with it and I didn't have to redo the job. It's been over 20 years ago, still sitting in the back of my head!
Down here in AU the wet look is actually quite common.
The difference between a typical kitchen is better hardware and countertops. They take mdf cored melamine sheets and run them thru a thickness sander to take the shine off of the melamine. No need to prime the faces. 2 coats of high gloss 2K poly. They also don't care too much about getting the spray room perfect, because they plan on buffing the whole deal. There is no way to spray the whole kitchen without orange peel, dust, or a run. So why bother trying to be perfect?
You just seal the edges with a couple of coats of catalyzed primer to seal and sand it with 320 grit.
They use a laminate trimmer to ease the edge.
I always ease edges with a 1/16 or 2mm roundover bit. I have dedicated trim routers for the task and much prefer using the one that has an offset base.