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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 05:48
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ok....so i've *almost* finished, but, before i can hang my doors i need to paint the hinges, and, before i can put my guards on need to paint the bolts ect.
anyone know if i need like a special sort of primer, possibly flexi prime, as, the last set of bolts i painted cracked as soon as i applied any torque/pressure.
also with my hinges i think the easiest and best way is to bead blast/sand blast them, then, prime and paint.
any feedback very welcome! thanks...
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Location:
On your mum!
Registered:
May 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 06:32
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You can always brush the bolt heads after you are happy with the aligment.
Hinges, blasting is fine - or just a good degrease and paint straight over (depends what result you're trying to achieve).
Doors etc are best painted (final coats at least) while they are bolted to the car (at the same time that the rest of the final coats are going on), bolting doors up after you have painted just begs for scratches.
Disclaimer: I am not a qualified painter, but I get by.
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 06:43
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Ack, screw painting them, go the plating!
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Location:
Newcastle, Hunter Valley
Registered:
January 2004
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 07:12
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just buy new plated ones for the ones that show
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 08:21
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Get the hinges acid dipped. This will give a much better job and will be cheaper.
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 20:57
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acid dipped? um, thanks but no...can't imagine what that would do the metal.
sandblasting seems to be the way to go. at least i think so anyway. i don't want to paint over them, as, in time they will chip and the paint might crack and i don't exactly want to see gold paint coming thru blue paint - yuck.
thanks for the responses!
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 21:14
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| Grega wrote on Mon, 10 May 2004 06:57 |
acid dipped? um, thanks but no...can't imagine what that would do the metal.
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If you can't imagine, maybe you should be getting out more? If engine blocks, heads, brake calipers, crossmembers, and engine mounts can be acid dipped I dont see why there would be a problem with door hinges. I spose if you have plastic ones there could be a small problem.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Painting - Nuts, Bolts and Hinges...
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Sun, 09 May 2004 22:22
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acid + metal = ions + much smaller hinges 
just because people do it doesn't make it a good thing for everything.
and plastic? most plastics are at least resistant if not impervious to acid... how many metals can you say that about 
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 00:27
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| Cool1 wrote on Mon, 10 May 2004 10:15 |
I'm not sure where you get your engine parts and brake calipers dipped, but I wouldnt be going there again  The acid used for dipping engine parts and calipers does not harm metals at all. However it will eat the shit out of plastic, rubber and all other waxy substances.
Oh and sandblasting will remove more of the metal than acid ever will.
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acid DOES harm metals (except gold, platinum and others with either resistance or acidic passivation) used in engines, ie ferrous and aluminium alloys (thats what acids chemically do)
if this 'acid dip' removes plastic, rubber and waxy substances (i assume grease and oil too), then it is more likely a mixture of 'solvents', not acids. but i would be interested in finding out what is actually in it.. sounds more like a 'chemical dip'.
heh heh, particularly when sandblasting alloy rims for use on light planes.... oops 
Cya, Stewart
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 00:47
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It appears that i'm confusing the term acid with chemical the same as you are confusing sandblasting with grit or wet basting. You cannot "sandblast" alloy. oops
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 01:44
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| Cool1 wrote on Mon, 10 May 2004 10:47 |
It appears that i'm confusing the term acid with chemical the same as you are confusing sandblasting with grit or wet basting. You cannot "sandblast" alloy. oops
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LOL, i DO mean sandblasting
unfortunately the aviation company i was doing my year 10 work experience for at the time didn't realise this... (you would think they would tho huh?)
the sand really does eat the alloy away quickly 
i don't think they are still in business now, so all is good 
anyhoo, back on topic
the hinges are a pretty complex shape so some kind of dipping/blasting would be good...
what about good ol' paint stripper?
then a nice coat of the POR stuff
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 06:09
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looks like the stripper did quite a good job!! not much pint left .. what kind/brand/etc was it?
heh heh, i don't get out nearly enough can you tell?
Cya, Stewart
ps, remember to regrease the pins after painting
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 07:17
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um, septone from memory.
burns holes in clothes, skin and most other things. quite effective. even removes paint (as you can see) 
well they got etch primed, then, painted, and are currently curing away in the garage. seem to have come up aok actually.
forgot to do the bonnet support and two hinges. which reminds me.
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Location:
Newcastle NSW
Registered:
June 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 14:43
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the chemical dip described is actually a very strong degreaser its ph neutral (or close to) so it doesnt harm the metal in any way.
and grease and oil being hydrocarbons just like rubber and paint all get dissolved leaving anything non organic aka. metal
hasnt anyone ever seen an old car get acid dipped? they use a mixture of acid and this strong degreaser to remove all the rust and paint. it does thin the body slightly but the rust being softer gets eaten first.
get some new stainless bolts and dont worry about paint.
every bolt i pull out of my car gets replaced with a staino one, and if u can see it an allen head if possible
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 19:40
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ok so thats what it is. cool.
no i've never seen an old car get dipped. would be interesting to see though thats for sure!
yes stainless bolts would be a nice idea...or at least chromed ones anyway.
thanks for the ideas dudes. at least the hinges are now done
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Location:
Rocklea qld
Registered:
February 2003
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 22:08
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I dont know what sort of acid you have been using but there is more then 1 type. we have a acid at work we put on header plates of radiators and it eats everything except the steel and brass and can also be touch buy skin without serious injury. we then have a acid that cleans alloy but if left to long say 30 minutes it starts to eat it. Just dip for about 5 minutes and that will be the best finish. As for sandblasting that is also a good idea so long as you use a small sandblaster or handyman one. A industrial sandblaster iws sure to dipmple your hingles and chew away any weekish material. We also use both these ways at work and would prefer the acid over the blasting any day of the way. Want my opinion...give them a quick degrease and then just a sand at home with some 180grit paper. Then you know you cant go wrong and then align your panels and just give a quick spray of paint.
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I supported Toymods
Location:
melbourne.victoria.austra...
Registered:
June 2002
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Re: Painting - Nuts, Bolts and Hinges...
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Mon, 10 May 2004 22:49
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i used septone paint stripper, coated, left for 5 mins, cleaned, recoated, 5 mins, washed thoroughly with water then prepsoled, etch primed, then painted.
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