OT Powder Coating Question

[Horst]

I'm trying to avoid repainting my front door (it is gloss black). The door faces S.E. so it gets pretty intense morning sun here in SoCal, which is hard on the paint. So I am thinking of getting a steel clad door and having it powder coated. The offering from HD spec's galvanized and primed. Simply powder coating over this would be ideal. If the primer must go, ok, but if galvanizing is a problem...?

[bborr01]

I think that most metal doors are styrofoam filled. That might not work so well in the powder coat oven where it reaches around 400 degrees F.

Brian

[3 Phase Lightbulb]

Also, check with the type of powder coating itself. I expect the problem with your S.E facing door is UV and I'm not sure if powder coating has any better UV durability.

[elf]

An HVLP spray gun and a little practice would be less expensive than a new door.

[softtail]

You wont be able to powder that. You could make a facade for it though, powder that and somehow attach.

[Bob Engelhardt]

Steel doors get dents in them. Fiberglas doesn't.

[Paul Alciatore]

Well yes, steel dents. But fiberglass cracks.

Both are bad. Both are repairable.

Steel doors get dents in them. Fiberglas doesn't.

[Fasttrack]

Maybe a urethane based, uv-resistant marine paint would be appropriate? But yeah, powder isn't going to work for an insulated door.

https://www.amazon.com/TotalBoat-Topside-Paint-Oyster-White/dp/B0182LF3DC/ref=asc_df_B0182LF3DC/?tag=hyprod-20&linkCode=df0&hvadid=309819417245&hvpos=1o1&hvnetw=g&hvrand=1924058176180989574&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001882&hvtargid=pla-570070101825&psc=1&tag=&ref=&adgrpid=62061529859&hvpone=&hvptwo=&hvadid=309819417245&hvpos=1o1&hvnetw=g&hvrand=1924058176180989574&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9001882&hvtargid=pla-570070101825

[MikeH]

I think that most metal doors are styrofoam filled. That might not work so well in the powder coat oven where it reaches around 400 degrees F.

Brian

Yes, they are foam filled. That’s what makes them more energy efficient.
if I recall correctly, powder coating requires bare metal. So, both primed and galvanized would be a problem. Unless the galvanized is the non-oil type (aka Paintgrip) the powder coat would have adherence issues.

[BudB]

I think a powder coater using polyester or urethane powder and a radiant oven would be able to coat your door. Not so sure about adhearnce issues.

[dave_r]

Well yes, steel dents. But fiberglass cracks.

Both are bad. Both are repairable.

You and Bob obviously need to stop doing things that make people want to kick in your front door...

[lakeside53]

As suggested earlier... paint it with a real marine 2 part paint. The factory primer is likely incompatible though so strip that off first.

[Horst]

Thanks guys; that's why I come here.

[chipmaker4130]

All steel doors are NOT foam filled. Many commercial-grade fire-rated doors have a fiber 'honeycomb' that separates the two steel sides, and provides some insulation. Most of these have a 3hr fire rating and they may well hold up to powdercoating. You'd need to check with the mfr.

[gellfex]

FWIW, old fashioned oil based alkyd paint does pretty well against sun. I have a west facing door that still looks good like 6 years after I painted it with Advance, Moore's water borne alkyd.