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Paint Nightmare Lustrekote - 9/2/2008 4:04:18 PM   
SuperKaos



Posts: 188
Joined: 7/21/2002
From: Granite Falls, NC, USA
Status: offline 		Hello all,

I'm TRYING to re due my 1/3 rd scale Lanier Laser 200. When I originally built it I used K&B paints. I haven't been able to find a K& B red, so I decided to go spray can. I purchased Lustrekote true red to TRY and match the monokote true red covering.

I really wanted it to come out super nice, so I spent a great deal of time perfecting the cowl surface with the epoxy based fiberglass. I primered it to catch any flaws and so on, the surface was like glass!

So I start painting, I put on a dust coat, then a second coat let it set up a bit then my final coat. I let things dry and return in about 10 minutes or so and this it what I came back to see. I looks like I painted it in a cloud at a 6,000' elevation!!??!!


No what do I do now ????






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       Post #: 1

RE: Paint Nightmare Lustrekote - 9/2/2008 4:39:52 PM   
TedMo


 

Posts: 417
Joined: 6/11/2006
From: Sun City Center, FL, USA
Status: offline 		Don't know if will help since I know very little about lustercote. However years ago during my silk and dope days I sometimes got that result if I sprayed on a very damp humid day. The cure then was to spray a coat of thinner on but when not a damp day. Hope it works for you.

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       Post #: 2

RE: Paint Nightmare Lustrekote - 9/2/2008 4:48:14 PM   
rlmcnii


 

Posts: 443
Joined: 7/3/2005
From: Pocomoke City, MD, USA
Status: offline 		SK,
Lustrekote must be a fast-drying paint. With fast-drying paints the rate of the evaporation of the solvent will cool the painted surface. Evaporation is a heat-absorbing process. If the relative humidity is high when you paint, this cooling can actually lower the temperature of the painted surface below the dew point and the resulting water condensation (dew forms on the painted surface) will cloud the paint.

Spray it again on a dry day...

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       Post #: 3

RE: Paint Nightmare Lustrekote - 9/2/2008 6:02:51 PM   
fireman7875


 

Posts: 643
Joined: 2/26/2002
From: Durham, NC, USA
Status: offline 		Yep, looks like you have a good case of blush. That is very with that type of paint (acrylic Lacquer). Not to worry, though, all you have to do is spray another coat. Even a coat of clear will fix it. Just be sure it isn't too humid when you spray again. It's hard to tell how humid is too humid because the paint is so intolerant of humidity. If you can spray indoors, that would be my recommendation but if that isn't possible wait for a drier day. I have also had some success by spraying just outside the doorway and then rushing the part inside. That must be done very quickly.

Brian

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RE: Paint Nightmare Lustrekote - 9/2/2008 6:55:44 PM   
tail strike



Posts: 538
Joined: 5/26/2003
From: Las Vegas, NV, USA
Status: offline 		Come to Las Vegas NV to paint the humidity here today is 10%

Larry S.


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RE: Paint Nightmare Lustrekote - 9/2/2008 9:55:12 PM   
SuperKaos



Posts: 188
Joined: 7/21/2002
From: Granite Falls, NC, USA
Status: offline 		Thanks for the help! Yes it is very fast drying paint! And yes it seems that there was a lot of moisture in the air while painting!


I painted everything in the basement shop this morning figuring it would be my best bet to eliminate any dust particles. Prior to painting things have felt rather damp down there the past few days with some previous rain storms passing by. However, with my lack of paint knowledge I thought I was actually doing well...

So after reading the responses I set the parts OUTSIDE on a table in the WIND, next to my sons sand box and painted away. And voila! It's not blushing!

Man I can't believe all the prepping I did to paint in the shop, and all I ended up doing is basically painting in a sand storm

Being the paint dries so fast it doesn't seem to attract to any particles...

Thanks for the help I greatly appreciate it! I'll post up some pics in a few.

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       Post #: 6

RE: Paint Nightmare Lustrekote - 9/2/2008 11:17:56 PM   
CrateCruncher



Posts: 733
Joined: 10/14/2005
From: Austin, TX, USA
Status: offline 		If you can rig up a portable air conditioner or temporarily reroute an A/C vent to your basement it will "pull down" the humidity level to an acceptible level. You can measure humidity with an inexpensive gauge known as a "hygrometer".

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RE: Paint Nightmare Lustrekote - 9/3/2008 3:19:15 AM   
bigtim


 

Posts: 2432
Joined: 5/31/2004
From: san francisco, CA, USA
Status: offline 		I have had nothing but trouble with lustre-coat paint doing just that on the dryest days, its really a poor product in general, but if you take the can to a paint store and ask them to put the can on a shaker for a few min. it helps stir the paint and helps with the blushing,the fogging comes with the laquer separating from the pigments,yes humidity does affect laquer but from past problems with this junk, a good mixing helps with this spoting and milky look.

alot of these cans have been sitting in a warehouse settling out so the pigments are sitting at the bottom of the can solid as a rock and need a vigorous shaking that just shaking by hand alone doesn't get it done.

also sand the cowl with fine paper to cut the surface and remove the sheen and allow the paint you have layed down to breath then light coats making sure to shake the can vigorously between spray passes.

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       Post #: 8

RE: Paint Nightmare Lustrekote - 9/3/2008 6:17:43 AM   
Gray Beard


 

Posts: 2267
Joined: 4/21/2003
From: Hemderson, NV, USA
Status: offline 		Klass Kote is A two part epoxy just like the old K&B, mater of fact, the hardner or part B will work with K&B pigment, really good stuff. Tail Strike didn't bother to mention here in Sin City you could wait for weeks before the wind calms down enough to paint, even indoors!!! You think you got it knocked one day then A Monsoon blows on through. Rain, Wind and A lot of Sweat!!
Besides the damp, you have to be careful about what primer you use too, I have mixed my paint brands and had some of the colors peel away, that's always A thrill on A 6 color cowl and color 5&6 peel.

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RE: Paint Nightmare Lustrekote - 9/3/2008 9:33:18 AM   
Ed Cregger


 

Posts: 8078
Joined: 1/31/2002
From: Ringgold, GA, USA
Status: offline 		This is the classic reason why folks have moved away from painting and now use plastic film coverings.

I used to use silk/tissue and dope exclusively. Living in southwestern NJ (swampy), I was always having issues with the humidity screwing up the finish. I switched to K&B Superpoxy for a while, which was a huge improvement, then the EPA stepped in and deprived us of even that.

I never understood why people feel it is okay to spray another coat within the same day. I guess I'm just too far into the old dope technique to give up the old habits.

I'll stick with using plastic film, thank you.


Ed Cregger

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RE: Paint Nightmare Lustrekote - 9/3/2008 4:29:57 PM   
tail strike



Posts: 538
Joined: 5/26/2003
From: Las Vegas, NV, USA
Status: offline

You can never have to much gas, unless you are on fire.


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RE: Paint Nightmare Lustrekote - 9/3/2008 4:40:52 PM   
Old Fart


 

Posts: 233
Joined: 4/27/2008
From: Perth, AUSTRALIA
Status: offline 		SK all good advice #2 to #7 and one word re humidity..HAIRDRYER!

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RE: Paint Nightmare Lustrekote - 9/4/2008 2:17:12 AM   
SuperKaos



Posts: 188
Joined: 7/21/2002
From: Granite Falls, NC, USA
Status: offline 		Yeap, thanks again guys. Moisture was definitely the issue here.

I actually have a dehumidifier for the living area down stairs, I though about running it mid stream. But at this point I'd just suck in the over spray and ruin the darn thing. After I ended up painting the parts outside I left the shop open all day to dry out some of the internal moisture in there. I figured keeping the doors closed was keeping the moisture out. Because all I did was walk out the door and paint all the parts outside. So there was definitely less moisture outdoors as compared to inside.

Lesson learn; cheap paint works well out doors.

Maybe next time I could run the dehumidifier 2 days prior to painting

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       Post #: 13

RE: Paint Nightmare Lustrekote - 9/5/2008 1:35:42 AM   
Old Fart


 

Posts: 233
Joined: 4/27/2008
From: Perth, AUSTRALIA
Status: offline 		SK i should have explained myself more clearly above.If you want to be energy efficient and save a lot of time,use the wifes hairdryer to gently warm the part you are painting,in between coats too.Then you can forget about the immediate air temp(cold)and humidity.Using heaters in panel shops has been a standard practice for years to avoid these problems eg blooming/blushing.If you use a slower thinner (retarder thinner) this helps too.

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