Help with gloss paint
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Topic author - F3
- Posts: 17
- Joined: Wed Nov 04, 2020 4:44 am
- Your Name: Cristiano Molignoni
- Favorite F1 Team or Driver: Nelson Piquet, Michael Schumacher
- Location: Setúbal
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Help with gloss paint
Hello
I wonder if someone can help with some tips about the gloss coat
In general flat and chrome paints are ok, but gloss always was a issue for me.
I use Tamiya Lacquer
Basically I have 2 questions:
1. Do you in general prefer - psi and + thinner or + psi and - thinner?
What I doing right now, I bought a precision scale and I mixing using the weight, not in ml or drops. For example I mix 2g of paint and 2g of thinner, for the gloss I'm using the retarder type. I usually can achieve the gloss effect but I usually spend a lot of paint, so I wonder if I'm doing something wrong.
2. This is for me the worst nightmare I'm not able to fix, is far away my biggest issue. Dirty, no matter what I do my paint always get dirty. I will put the photos attached so you can understand what I'm talking about. I have a spray both, I always use a Tamiya anti static brush tool to clean the model, but there is no way I got a paint without some dirty spots.
In case this is normal how do you actually fix this after the paint is dried?
In any case thanks a lot for your help
The images:
In general I ok with the gloss effect, I think I spend too much paint (in this case half of Tamiya 10ml bottle) so the reason my first question Now the real nightmares:
Kind regards
Cristiano
I wonder if someone can help with some tips about the gloss coat
In general flat and chrome paints are ok, but gloss always was a issue for me.
I use Tamiya Lacquer
Basically I have 2 questions:
1. Do you in general prefer - psi and + thinner or + psi and - thinner?
What I doing right now, I bought a precision scale and I mixing using the weight, not in ml or drops. For example I mix 2g of paint and 2g of thinner, for the gloss I'm using the retarder type. I usually can achieve the gloss effect but I usually spend a lot of paint, so I wonder if I'm doing something wrong.
2. This is for me the worst nightmare I'm not able to fix, is far away my biggest issue. Dirty, no matter what I do my paint always get dirty. I will put the photos attached so you can understand what I'm talking about. I have a spray both, I always use a Tamiya anti static brush tool to clean the model, but there is no way I got a paint without some dirty spots.
In case this is normal how do you actually fix this after the paint is dried?
In any case thanks a lot for your help
The images:
In general I ok with the gloss effect, I think I spend too much paint (in this case half of Tamiya 10ml bottle) so the reason my first question Now the real nightmares:
Kind regards
Cristiano
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- FIA President
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Re: Help with gloss paint
First is to get rid of the dust in the air.
- MIst water into the air.
- Run your spray booth and/or an air filter for a while before you paint.
- When done spraying, cover the opening of the booth with a filter.
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- FIA President
- Posts: 1729
- Joined: Sun Apr 30, 1995 1:00 am
- Your Name: Eric Aitala
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- Location: State College, PA
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Re: Help with gloss paint
If you get dust in the paint, you may be able to polish it out... depends on how big / deep it is.
If that does not work, you will need fine sandpaper to sand it down, then respray.
E
If that does not work, you will need fine sandpaper to sand it down, then respray.
E
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Topic author - F3
- Posts: 17
- Joined: Wed Nov 04, 2020 4:44 am
- Your Name: Cristiano Molignoni
- Favorite F1 Team or Driver: Nelson Piquet, Michael Schumacher
- Location: Setúbal
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Re: Help with gloss paint
Hi Eric, thanks a lot, I will for sure tey the first 2. About the filter I already have it.f1m wrote: ↑Tue Jun 14, 2022 4:02 pm First is to get rid of the dust in the air.
I just taped a standard air filter to the front of mine.
- MIst water into the air.
- Run your spray booth and/or an air filter for a while before you paint.
- When done spraying, cover the opening of the booth with a filter.
IMG_4286.jpg
E
And I try to sand it but do you believe is possible to get a descent result if I sand the local and paint again only in the local? Trying of course using the same paint mix I used in the first paint try?
thanks a lot again
Kind regards
Cristiano
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- FIA President
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- Joined: Sun Apr 30, 1995 1:00 am
- Your Name: Eric Aitala
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Re: Help with gloss paint
I'm not sure, it really depends. I've seen lacquer paint blend pretty well with the previous coat. I think overspray will be the biggest problem. You might need to polish out the larger area to blend things together.
E
E
And I try to sand it but do you believe is possible to get a descent result if I sand the local and paint again only in the local? Trying of course using the same paint mix I used in the first paint try?
Kind regards
Cristiano
Re: Help with gloss paint
Eric is spot on.
In addition, your paint gloss seems to be pretty good even though it has some dust particles. Have you tried polishing with Micromesh pads in 3200, 4000, 6000, etc. finer grits just to see if the dust contamination polishes out? It will also help reduce orange-peel and get an even glossier smooth surface if it works, finishing off with Tamiya polishing compounds (Coarse, Fine, Finish sequence).
AJ
In addition, your paint gloss seems to be pretty good even though it has some dust particles. Have you tried polishing with Micromesh pads in 3200, 4000, 6000, etc. finer grits just to see if the dust contamination polishes out? It will also help reduce orange-peel and get an even glossier smooth surface if it works, finishing off with Tamiya polishing compounds (Coarse, Fine, Finish sequence).
AJ
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Re: Help with gloss paint
Hi Cristiano,
It is an annoying issue. Getting the spray booth clear first is critical. I use my airbrush to spray around to get dust off surface first and than wait for the fan to suck it out.
I don't use lacquer paint much. I think it is still similar for different paint types. I usually have light coats rather heavy coats. I inspect for dust particles after each spray. If there are dirts on the paint, usually it is not embedded as the paint layer is thin. I will wait for the layer to become dry first. Then use a brush to try to brush the particle away. If it sticks to the paint, I will use 1500 grid wet sand paper to carefully sand it away.
I also put the surface being painted in vertical or slightly facing down during painting to prevent particles landing on it. Once spraying is done, I quickly put the object inside a cover for it the dry. This also prevent any more dust to land on the painted surface.
For the final layer, after sanding off dust particles,the paint can be just polish with polishing compound. Slow sanding with 1500 to 2000 grid wet sand paper is the way. Don't try to rush the sanding. You may not need to repaint, just polish it.
I also find painting is the least enjoyable step for me.
Hope you find some success.
It is an annoying issue. Getting the spray booth clear first is critical. I use my airbrush to spray around to get dust off surface first and than wait for the fan to suck it out.
I don't use lacquer paint much. I think it is still similar for different paint types. I usually have light coats rather heavy coats. I inspect for dust particles after each spray. If there are dirts on the paint, usually it is not embedded as the paint layer is thin. I will wait for the layer to become dry first. Then use a brush to try to brush the particle away. If it sticks to the paint, I will use 1500 grid wet sand paper to carefully sand it away.
I also put the surface being painted in vertical or slightly facing down during painting to prevent particles landing on it. Once spraying is done, I quickly put the object inside a cover for it the dry. This also prevent any more dust to land on the painted surface.
For the final layer, after sanding off dust particles,the paint can be just polish with polishing compound. Slow sanding with 1500 to 2000 grid wet sand paper is the way. Don't try to rush the sanding. You may not need to repaint, just polish it.
I also find painting is the least enjoyable step for me.
Hope you find some success.
C K
Canada
Canada
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Topic author - F3
- Posts: 17
- Joined: Wed Nov 04, 2020 4:44 am
- Your Name: Cristiano Molignoni
- Favorite F1 Team or Driver: Nelson Piquet, Michael Schumacher
- Location: Setúbal
- Status: Offline
Re: Help with gloss paint
Thanks a lot for the comments
As I can see the most important is to try to clean my spray booth, I will also try some techniques you mentioned
After I try again I put my results here
About the spray both, I bought in the past a spray both from Benchvent, and it' pretty solid, but I looked in the site to buy a spare filter and for 3 spare filter + shipping to Portugal is about 90 pounds. Is it easy to find these type of filter in stores like Leroy Merlin?
Thanks again
Cristiano
As I can see the most important is to try to clean my spray booth, I will also try some techniques you mentioned
After I try again I put my results here
About the spray both, I bought in the past a spray both from Benchvent, and it' pretty solid, but I looked in the site to buy a spare filter and for 3 spare filter + shipping to Portugal is about 90 pounds. Is it easy to find these type of filter in stores like Leroy Merlin?
Thanks again
Cristiano
-
- Constructors Champion
- Posts: 1305
- Joined: Mon Mar 06, 2006 9:38 am
- Your Name: C K
- Favorite F1 Team or Driver: Mercedes, McLaren, Williams
- Location: Canada
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Re: Help with gloss paint
Hi Cristiano,
In Canada, we have air filter for furnace that are everywhere. They are cheap (~ 6 Cdn a piece). I'm not sure you have these at your location. You can cut them smaller or glue two pieces together to make it fit.
In Canada, we have air filter for furnace that are everywhere. They are cheap (~ 6 Cdn a piece). I'm not sure you have these at your location. You can cut them smaller or glue two pieces together to make it fit.
C K
Canada
Canada
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Topic author - F3
- Posts: 17
- Joined: Wed Nov 04, 2020 4:44 am
- Your Name: Cristiano Molignoni
- Favorite F1 Team or Driver: Nelson Piquet, Michael Schumacher
- Location: Setúbal
- Status: Offline
Re: Help with gloss paint
Thanks CK
I will try to found here or at least looked for a online store
Thanks
Cristiano
I will try to found here or at least looked for a online store
Thanks
Cristiano