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Location:
Perth Western Australia
Registered:
April 2004
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Painting Plastic
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Fri, 20 May 2005 03:11
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just wanting a quick tip.
should i sand the UNPAINTED plastic before applying the Plastic Primer ?
BTW : its the lower lip of my RA65 !
cheers ...
coFF
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Painting Plastic
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Fri, 20 May 2005 03:41
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You may not have to, but any grit you add to the surface to help the primer adhere would be a good thing.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Location:
Forster NSW
Registered:
September 2004
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Re: Painting Plastic
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Fri, 20 May 2005 04:29
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Yes.
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Location:
Melbourne
Registered:
May 2002
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Re: Painting Plastic
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Fri, 20 May 2005 08:20
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I concur. 
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Location:
Vic, AU
Registered:
September 2004
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Re: Painting Plastic
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Fri, 20 May 2005 12:45
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| coFF33 wrote on Fri, 20 May 2005 13:11 |
just wanting a quick tip.
should i sand the UNPAINTED plastic before applying the Plastic Primer ?
BTW : its the lower lip of my RA65 !
cheers ...
coFF
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Sand it, clean it, then prime it. Always follow the directions on the primer can as well, some require that you use it within a certain time frame (ie. after 30 minutes, before 1 hour).
Clean it with wax'n'grease remover, won't damage the plastic and will make it clean enough for the primer to stick.
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Location:
South Australia
Registered:
July 2002
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Re: Painting Plastic
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Sat, 21 May 2005 01:42
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Yer
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Location:
Perth Western Australia
Registered:
April 2004
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Re: Painting Plastic
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Sat, 21 May 2005 02:52
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 rear bumper is almost done .. waiting on can of clear and tomorrow ill be putting th 041 white on the front lip !
YAY FOR ME !
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Painting Plastic
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Sat, 21 May 2005 04:37
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i've noticed some plastics go 'furry' if you sand them.
whenever i was painting plastics during stereo installs i just used prepsol (wax and grease remover) and plastic primer. didnt sand it.
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Location:
Vic, AU
Registered:
September 2004
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Re: Painting Plastic
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Sat, 21 May 2005 23:09
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| feral4mr2 wrote on Sat, 21 May 2005 14:37 |
i've noticed some plastics go 'furry' if you sand them.
whenever i was painting plastics during stereo installs i just used prepsol (wax and grease remover) and plastic primer. didnt sand it.
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Using an electric sander? Some will do that VERY easily due to the heat generated from the friction. A variable speed sander can fix that, sometimes. Other times the plastic just won't sand well unless it's by hand. Realistically though, you only have to sand the plastic if it's painted and even then it's not essential.
As you said, a bit of wax'n'grease remover and you'll be right for internal parts. 
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Location:
MELBOURNE
Registered:
December 2004
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Re: Painting Plastic
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Sat, 21 May 2005 23:27
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If you use wax and grease remover make sure you remove that aswell. lol! Bad memories... lol.
Thanks
Troy
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Painting Plastic
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Sun, 22 May 2005 09:08
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All you need to do is take the gloss off the plastic, don't worry about sanding it properly.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Painting Plastic
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Sun, 22 May 2005 11:55
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| boofis wrote on Sun, 22 May 2005 09:27 |
If you use wax and grease remover make sure you remove that aswell. lol! Bad memories... lol.
Thanks
Troy
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yes, indeed. me too.  
clean cloth to put it on and clean dry cloth to remove it.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: Painting Plastic
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Sun, 22 May 2005 12:01
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| gr8r-x wrote on Sun, 22 May 2005 09:09 |
Using an electric sander? Some will do that VERY easily due to the heat generated from the friction. A variable speed sander can fix that, sometimes. Other times the plastic just won't sand well unless it's by hand. Realistically though, you only have to sand the plastic if it's painted and even then it's not essential.
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seen it when done by hand too. i rarely use power tools.
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As you said, a bit of wax'n'grease remover and you'll be right for internal parts.
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i use wax and grease remover on every part i paint, whether it be internal or external bits.
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Location:
Sydney
Registered:
December 2003
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Re: Painting Plastic
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Mon, 23 May 2005 07:57
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me n my brother painted the lower lip on my old ra60, I dont think we sanded it but i know we cleaned it be4 the primer. In the end it started to flake, started as little chips from rocks.
Im thinking of spraying the black part on the bumper on my ae92. those of u with ae92, u know how the bumper is already rough..... u reckon you'd have to sand that? Cause it has like a texture alredy, if you sand it, it'd go smooth.
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