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View Full Version : spraying oil-based interior paint?


miketyler
08-02-2008, 01:46 PM
Whomever painted the inside of our new house did a kick-ass job. It looks like they sprayed a super high gloss oil based paint on the trim. You can't see any brush marks anywhere.

We just replaced the sliding glass doors with french doors and put in a cool beveled glass front door. I now need to paint them to complete the projects but I want to be sure I get the same finish as was done thru the rest of the house.

What equipment do I need to spray oil based interior paints? I have several automotive style paint guns, can I thin down with lacquer thinner or mineral spirits and use my paint guns or is there a special setup used for spraying interior house paint?

I also have a pressured spray rig setup I used for painting interior and exterior paint but its alot of trouble to drag it out just to paint some trim and three doors.

Tyrone Biggums
08-02-2008, 02:23 PM
I've brush painted all the trim, base, and crown in my house with Sherwin Williams Pro Classic with excellent results. Proper paint and brush=no spray rig needed. Even if I had a rig, I wouldn't use it to paint trim.

Vertnut
08-02-2008, 02:32 PM
I've brush painted all the trim, base, and crown in my house with Sherwin Williams Pro Classic with excellent results. Proper paint and brush=no spray rig needed. Even if I had a rig, I wouldn't use it to paint trim.
It's messy as hell if you're already in the house. Even if you cover everything, you'll still find overspray in places you never knew existed.

BlackSnake1996
08-02-2008, 02:56 PM
I have actually been spraying oil all morning. I just got home. You can use a cup gun (HVLP), but don't thin it with lacquer. It will cause it to turn yellow. If you want it to dry faster, use naptha for your thinner, or you can use mineral spirits if your in no hurry on drying time.

Like said previously, make sure EVERYTHING is completely covered. Oil based paints stay wet and air born for quite some time. You'll end up with it all over the house. Also, if you are close to a air intake, turn the air off. It will suck up in the vent and blow out to the other rooms.

Also mentioned previously, Sherwin Williams Pro Classic is pretty easy to brush. Its a self leveling paint, and you can add Penitrol to thin and help with the leveling.

miketyler
08-02-2008, 03:07 PM
in this case, I haven't installed the trim yet. Its all cut and fit and I was going to spray it and the doors outside.

I tried a sample brushed and was pretty surprised with the result using the ultra-crappy stipple brush HD sells for .99 each. I also did a sample with a roller - that didnt work out at all as it just induces bubbles each pass.

BlackSnake1996
08-02-2008, 03:13 PM
in this case, I haven't installed the trim yet. Its all cut and fit and I was going to spray it and the doors outside.

I tried a sample brushed and was pretty surprised with the result using the ultra-crappy stipple brush HD sells for .99 each. I also did a sample with a roller - that didnt work out at all as it just induces bubbles each pass.

You'll still have to caulk it and putty the holes. That will require painting as well.

miketyler
08-02-2008, 03:58 PM
yes and that's not big deal for me if it saves me the prep time to spray inside

BlackSnake1996
08-02-2008, 05:18 PM
If you didnt get preprimed wood, make sure you prime it 1st.

Sgt Beavis
08-03-2008, 07:52 AM
I've been painting baseboards and trim in my house over the last month or so (a little here, a little there) I found that using a small roller to apply the paint then a light stroke with a dry brush produces a really kick ass finish that is nearly as good as spraying. But the bonus is that you have a lot less cleanup.

miketyler
08-03-2008, 08:18 AM
yup, did that also. I can see where the ideal setup is probably using the high pressure system and that may be where they got the perfect finish they did my hopuse in originally.

To get the material to shoot nicely from a siphon style gun you have to thin it. Thinning it shortens the flash time and comes with a reduction in quality of gloss finish.

In the end, applying oil based paint is an acquired skill, not like latex at all. Oil has a better quality gloss, better wear life and clean up. A good brush makes a BIG difference.

BlackSnake1996
08-03-2008, 08:36 AM
yup, did that also. I can see where the ideal setup is probably using the high pressure system and that may be where they got the perfect finish they did my hopuse in originally.

To get the material to shoot nicely from a siphon style gun you have to thin it. Thinning it shortens the flash time and comes with a reduction in quality of gloss finish.

In the end, applying oil based paint is an acquired skill, not like latex at all. Oil has a better quality gloss, better wear life and clean up. A good brush makes a BIG difference.
While even using a conventional spray rig, you still need to thin out the paint a little to keep from orange peal.