Spray Booth

[scrmnegl]

I have a 19' bowrider I would like to spray. Anyone made their own spray booth at home to go over their boat? What equipment did you use?

thanks!
Chris

 

[Yacht Dr.]

Re: Spray Booth

What kinda paint m8 ?

Yes I have..but until I know what your doing..Im not going to tell ya

YD.

 

[CheapboatKev]

Re: Spray Booth

Depending on what paint your using (and to maybe allude to what the Doc is saying)

You may need to be asking about respirators First, then maybe about a booth..
Some of that stuff will either kill ya or make you wish it did..

 

[scrmnegl]

Re: Spray Booth

2 part polyeurathane. I know that I should be using a air feed system with that

 

[drewmitch44]

Re: Spray Booth

What kinda paint m8 ?

Yes I have..but until I know what your doing..Im not going to tell ya

YD.

He says in his post what he is going to be doing. He is trying to spray his 19' boat. Don't understand the problem with that.

 

[sschefer]

Re: Spray Booth

Home Depot sells a ready made portable carport or you can build your own with PVC Pipe. Cover the sides with plastic sheeting and put a non-sparking (fire safe) blower on either end. Put a couple of anti-alergen furnace filters on the intake blower to filter out incomming dust.

Make the sides so that about a foot is on the ground. This way you can put some rocks or bricks in it to hold it down.

Before you spray, wet down the ground in and around the booth. That will help with the dust.

You are already aware of the need for a mask with an air supply but also make sure you wear head to toe protective clothing.

You should also be using a pot sprayer for that two part paint. A gravity feed will work but it won't spray as well as a pot will. And you'll need a minimum of a 60 gal compressor or you'll run out of air.

This is why most of us roll and tip and then color sand.

 

[mmccoy555]

Re: Spray Booth

I made a booth out of shrink wrap. Sealed it all up to keep the dust out then for heat a salamander heater. Worked great. Then when done you can just roll the shrinkwrap up out of the way.

 

[scrmnegl]

Re: Spray Booth

Home Depot sells a ready made portable carport or you can build your own with PVC Pipe. Cover the sides with plastic sheeting and put a non-sparking (fire safe) blower on either end. Put a couple of anti-alergen furnace filters on the intake blower to filter out incomming dust.

Make the sides so that about a foot is on the ground. This way you can put some rocks or bricks in it to hold it down.

Before you spray, wet down the ground in and around the booth. That will help with the dust.

You are already aware of the need for a mask with an air supply but also make sure you wear head to toe protective clothing.

You should also be using a pot sprayer for that two part paint. A gravity feed will work but it won't spray as well as a pot will. And you'll need a minimum of a 60 gal compressor or you'll run out of air.

This is why most of us roll and tip and then color sand.

What is color sanding?

 

[erikgreen]

Re: Spray Booth

I agree with sschefer.

What I did was use part of my garage for spraying a small car... I had to "hang" a sheet of plastic for a roof since I had trusses, then put up plastic walls using "T" shapes I made out of some tubing and wood.

If you've ever seen a commercial product called "zipwall" basically that's what I was going for. They're extensible poles that are designed to hold plastic sheets up as walls and form a dust barrier.

For filtering I used a hepa furnace filter and a couple of brushless fans to pull air out. Very important to use brushless fans or a non igniting fan of some kind, other than being poisonous the fumes are explosive in the right mix with air.

It worked ok... I still felt sick even wearing a respirator with carbon filters.

Next time I'll only spray in a booth with updraft ventilation sufficient to change out all the air a couple times a minute. You need to not only filter the air before it gets outside the booth, but you need to get fumes out of the air inside the booth so you don't breathe them too long, or let them build up to explosive levels.

If you're spraying because you think it'll give you a better finish than roll and tip, or be easier, I'd suggest you reconsider... modern marine paint is specifically designed to give a great roll and tip finish, and most of the work you'll do is in prep anyway, not in the actual painting.

Erik

 

[Yacht Dr.]

Re: Spray Booth

Sorry for the safety concerns .. but Ive seen peeps goto the hospital for doing some crazy things in a tent m8.

2 part catalyzed thanes are nothing to be careless about ( pretty much anything in this field isnt as well ).

Do you have any close neighbors .. or kinda out in the sticks ? If your somewhat distant from anyone else .. then wet down a good size perimeter around your boat and spray it out in the open on a nice dead calm day.

Personally Id look for someone that would rent you a booth ( doesnt have to be a baking booth) for a half day.

The cost of a supplied air is expensive and is the only way I would do it in a diy tent.

Sorry.. but there is no other information I can give.

YD.

 

[wca_tim]

Re: Spray Booth

I echo the above sentiment. I spray acrylic uregthane paints like duponts nason 2k line in the yard wearing a good 3m combination (particulate / charcoal) filter mask. the high quality particulate filtration is every bit or more important than charcoal. as long as the distance from anyone else is plenty far that the aerosolized particles make it to the ground before someone breaths them, they're reactive enough that they don't survive long in the environment.

For hdmi containing urethane products like imron awlgrip, etc... I wouldn't do it without professional quality supplied air and protective equipment. Most coatings chemistries will do you harm, but these guys can put you in the hospitol or even a casket either quickly or slowly (cancer) if you don't watch what you're doing.

I just don't see the risk benefit to save the few hundred bucks it would cost to rent access to decent equipment.

standard disclaimer... just opinion, personal experience and in no way assumed responsibility for anything you do or don't do, etc... if you mess with this and have safety problems, you're on your own...

all that being said, you can do some really cool things with modern paints and pigments if you've the time and energy to be safe and experiment with things...

 

[sschefer]

Re: Spray Booth

I absolutely agree with all the safety precautions that are being stressed here. The one thing you definitely must consider is not just your own safety but also the safety of others around you. The fine particulates that are produce from the exhaust fan of your booth will disperse into the air and depending upon where you live, can become a health issue that you will be reponsibile for. Heavy fines have been levied in my area.

Color sanding - There are many variations but the easiest is just to use a progesssion of 600-1000 grit wet or dry sand paper to remove any imperfections that occured during the tipping of the paint. Once the sanding is complete you polish the paint with a automotive polisher and polishing compound. If you are considering color sanding it is often wise to apply a third coat of paint rather than stopping at the recommended 2 coats.

You can see the results at my resto thread on the last or next to last page.