advice on home spraying...

scooke · Borekit Bruiser Joined: 03 Mar 2010 Karma :

hi guys as the winters coming upon us i thought it would be a good time to get the aesthetics sorted on the bike ( going to be garaged ) but i really would like some help on prep and spraying techniques. my plan is to do the:

- front lower fork legs
- radiator
- top yoke
- both handle bars
- rear wheel
- brake callipers
- and maybe parts of the frame that need to be treated and sealed.

so what sort of paints would be appropriate???
any help would be greatly received...
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CG Sam · Crazy Courier Joined: 08 Apr 2013 Karma :

Are you intending on using rattle cans or a paint gun powered by a compressor?
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scooke · Borekit Bruiser Joined: 03 Mar 2010 Karma :

Hay fella umm my friend has a small compressor and spray gun but ive never used one before. Used spray cans but i dont know what sort of budget i have at the moment as i want to get idea on differences in makes of primer, top coats and lacker ( for best results ) Many thanks
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Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

Didn't read the question properly...
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scooke · Borekit Bruiser Joined: 03 Mar 2010 Karma :

Ok, im comfortable and was intending to use cans but if its simple enough and the right price ill ask to use my friends compressor...
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CG Sam · Crazy Courier Joined: 08 Apr 2013 Karma :

scooke · Borekit Bruiser Joined: 03 Mar 2010 Karma :

Ok thank you any advice on the preparation side of things i guess smoother the surface before spraying the better the finish. But what to so between layers. Many thanks
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CG Sam · Crazy Courier Joined: 08 Apr 2013 Karma :

Remove any decals etc if there are any, clean it trying to get the worst of any of the adhesive residue left off, then set to it with some light grade sandpaper, nothing too rough. Keep it smooth as possible and dust and grit free.
Try and do the spraying in a dust free environment that's clean. Don't try to rush the drying of coats as it can end up uneven and even potentially bubbling. If you can a couple of small heaters on a low heat (one each side) will help speed the drying process up without rushing it and it staying even. I wouldn't spray with them on though!!
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misscrabstick · Crazy Courier Joined: 05 Jul 2013 Karma :

Rattle cans are pretty much useless for anything that will be exposed to petrol or solvents or wear, lots of cheap 2k paints on ebay for use with a gun and compressor, yes more hassle with mixing and gun cleaning etc, but... a decent durable finish, apply plenty of paint over multiple coats, you then have something to cut back for a super finish. Bike parts generally are not that big so even a little compressor will do if you don't ask too much of it ( keeping reservoir charged), make sure you get and use a decent mask ( ideally air fed) when spraying 2k paint.

Nobby the Bastard · Harley Gaydar Joined: 16 Aug 2013 Karma :

CG Sam · Crazy Courier Joined: 08 Apr 2013 Karma :

scooke · Borekit Bruiser Joined: 03 Mar 2010 Karma :

Hay it all good were all here for the same reason, and thanks both of you for the advise youve given, ohh another question very nieve i no but apart from polishing alininium how do ypu get it to look like chrome? ( i probably will get some grief for this post )
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lihp · World Chat Champion Joined: 22 Sep 2010 Karma :

Small compressor will be absolutely useless for spraying, you will get a couple of seconds out of it before you run out of pressure and have to wait on it refilling again.
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misscrabstick · Crazy Courier Joined: 05 Jul 2013 Karma :

lihp · World Chat Champion Joined: 22 Sep 2010 Karma :

For stuff that small, rattle cans with a proper spray pattern is worth exploring, especially those supplied by proper auto-paint stores that can provide 2k rattle cans.
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Spanner · Banned Joined: 18 Nov 2013 Karma :

I've done small areas with spray cans, but to go the compressor route is going to make a right mess unless you can make a booth for it?

Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

Two problems with spraying this time of year, it's wet and cold. The moisture in the air can cause fish eyes and the cold with cause runs, splatter or poor paint adhesion. If I really have to spray at home then I will warm the part up in the house, with a heater or with a heat gun. Not too hot, 20-30 degrees is plenty.

It's worth keeping the paint indoors just to keep it warm.
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Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

BTTD · World Chat Champion Joined: 22 Nov 2012 Karma :

jjdugen · World Chat Champion Joined: 03 Jun 2011 Karma :

I do quite a bit of renovating on the old nails I pick up. I've tried rattle cans, cellulose spray from a gun and 2-pack.
Celly in a spray gun is the easiest to work with, but you have to get to the paint supplier and then he has to match colour, buy thinners, get the compressor emptied of water etc. If its a small area like fork legs, its quicker just to rattle can them and cover with lacquer.
Tanks and panels that are 'on show' do need lots of preparation as noted.
'Self leveling' 2-Pack is the most durable on tanks that get attacked by petrol spillage and clothing rubs, but it is nasty stuff, please read the warnings before you use it.
One little tip I can pass on. You can get a glass like finish with a rattle can of colour and lacquer. Get your colour on as evenly as possible then go over it with fine wet n dry. Get a really good coating of lacquer all over. Rattle can stuff WILL be uneven unless you are extremely lucky. Cut this back to get rid of ALL the imperfections, you are looking for an entirely even matt finish.
Let it sit for at least a day in a nice warm room.
Then (and this does take practice) use your hot air gun to 'melt' the surface. Once the lacquer melts move on immediately or you will burn the paint. It comes up to a high gloss finish that is very hard. The longer it is left the more resistant it gets.
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ZRX61 · Victor Meldrew Joined: 05 Nov 2003 Karma :

cb1rocket · World Chat Champion Joined: 30 Jan 2010 Karma :

Apply several colour coats then rub down, and then apply lacquer you say?
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Ichy · World Chat Champion Joined: 15 Jul 2005 Karma :

ninja_butler · World Chat Champion Joined: 19 Oct 2011 Karma :

I wouldn't attempt it during the Winter at all unless you have a super-dry indoor area to work in - and then you'd need ventilation too. Even on a dry Winter's day there is too much moisture in the air to make spray painting viable.

stirlinggaz · World Chat Champion Joined: 22 Jul 2007 Karma :

hi,
see this Wink

https://www.bikechatforums.com/viewtopic.php?p=3756855#3756855

cheers,
GAZ