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 Post subject: How-To: Repainting Automotive Plastics
PostPosted: Mon Mar 12, 2012 10:02 pm 

Joined: Fri Jan 13, 2012 7:40 pm
Posts: 152
Location: Silverdale, Washington, USA
So youre tired of your bish looking like crap. What are you to do? Well, you can try repainting all the plastic pieces. Im going to describe this technique using GL tail lights, but this can be applied to anything thats plastic with minor changes in the procedure.

Supplies:
1. Plastic pieces (duh)
2. Plastic primer
3. Paint
4. Masking supplies (painters tape, butchers paper, plastic film, etc.)
5. Cleaning supplies (non-conttonous wipes, cleaning solution, etc.)
6. Safety equipment... #1 priority, but #6 on the list :shock:

NOTE: ANY PAINTING SHOULD BE DONE OUTSIDE AND IN A WELL VENTILATED AREA. PAINT FUMES CAN NOT ONLY BE UNHEALTHY, BUT ALSO FLAMMABLE. PLEASE USE ALL SAFETY AND WARNING PRECAUTIONS OUTLINED ON THE LABEL OF YOUR PAINT.

This is what were trying to do:

ImageImage

(Before vs. After)

As you can see we go from crappy grey weathered plastic to OEM looking fresh black. Legit.



*You can click on the images for larger versions*

Step 1- Take your plastic plastic pieces and fully dissemble them. Remove any brackets, emblems, screws, anything thats not the actual plastic you want painted.

Image


Step 2. Clean all of your parts thoroughly. You only want to paint the plastic, not the crap stuck to it. Grease, dust, dirt, stickers, or anything is just going to mess up your work. Your final paint job is only as good as your prep-work. Any of the painters or autobody guys on here can attest to that fact. Take your time on this step... other than wait time between coats, this should be your longest step.

Step 3. There may be areas of your plastic that you do not want to paint or maybe you want it a different color. For this piece, there was a trim area outlining the light bezel that I did not want black; I want it silver for accent like the original piece. For this I bought Frogtape which is a better Painters Tape (the blue tape with a mild adhesive). It sticks well, but when youre done with it, it easily peels away leaving no residue. I covered the silver trim in tape and cut it to size with a precision utility knife. I was on the hunt for a smaller sized tape so that I did not have to cut at all, but I could only find 24mm. I know they make smaller sized tape for autobody applications but I did not have access to that.

Image Image

Image Image


Step 4. Snack time! After all the cleaning, pre-work, masking etc. I was starving. So I stopped to have a snack. Its important to get all your nutrients and stay hydrated.

Image


Step 5. To make sure that your paint sticks to your plastic and doesnt just run, use plastic primer. Make sure you do a couple coats according to the directions printed on the label. Make sure they are good clean coats. You dont need thick coats but enough to tack up and have the paint stick.

Image
Image Image

Step 6. Paint. Its basically the Step 5, but according to the directions on the paint can instead of the primer can.

Step 7. Once the paint has dried carefully (read: CAREFULLY!) peel away your tape. I personally used my precision utility knife and pried up a corner of the tape. Once the corner was up, I slowly but surely peeled it back. If you go quickly, you have the potential to peel some of the paint along with it; you dont want that.

Image


Step 8. Clean up your pieces. There may be little flecks of tape or loose random materials on in/on your paint. Gently pick them off the insure a clean job.

Step 9. Now if you have mutiple colors to spray, reverse mask the area you want.

Image


Step 10. Repeat Steps 6-8 for the second color.

Step 11. ???

Step 12. Profit

Image

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--Tristin
1969 Datsun 510 4dr.
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Last edited by tristinGrind on Thu Mar 29, 2012 11:22 pm, edited 1 time in total.

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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Mon Mar 12, 2012 10:05 pm 

Joined: Fri Jan 13, 2012 7:40 pm
Posts: 152
Location: Silverdale, Washington, USA
I copy and pasted this from another forum because I thought this could help some of you with your restoration projects. I hope this helps.

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1969 Datsun 510 4dr.
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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Tue Mar 27, 2012 8:08 pm 

Joined: Tue Jul 12, 2011 12:38 pm
Posts: 18
Location: fontana
where the pics?


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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Wed Mar 28, 2012 1:38 pm 

Joined: Fri Feb 25, 2011 7:45 pm
Posts: 42
Location: Florida
this thread is worth a penny


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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Thu Mar 29, 2012 6:45 pm 

Joined: Fri Jan 13, 2012 7:40 pm
Posts: 152
Location: Silverdale, Washington, USA
I noticed the missing pics the other day. I have restored the. Locally on my HDD and will be replacing them with new Flickr links. I'll fix it... I promise. I was just glad I was able to find the pictures again.


EDIT: Fixed!!!!! :D

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1969 Datsun 510 4dr.
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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Mon Apr 02, 2012 8:31 am 
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Joined: Wed May 21, 2008 2:16 pm
Posts: 771
Location: Oklahoma City
Another good tip, try to pull the masking off before the paint has dried. I usually wait about 10-15 mins for the paint to tack up. You are less likely to pull up the paint with the mask if it is still soft. If there is lettering on the part, I did a steering column surround that had 'Hazards' on it, a thin coat of oil/grease/vaseline works as a mask as well. After the paint has dried, just wash the part with warm soapy water. The grease/vaseline will break down and lift the paint with it. I will try to take some pics of the column tonight. If the color is available in the Krylon Fusion line, then you can skip the primer part. In all, great write up!

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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Wed Apr 04, 2012 12:19 pm 
Mild Cam
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Joined: Wed Feb 10, 2010 2:31 pm
Posts: 1598
Location: Cleveland, Ohio
Great post! I'd like to add, I found a great velvety/semigloss black colour for cheap called "Touch N' Tone" available in some local Drug Mart stores, it lays down easy and looks great! The finish also seems fairly durable. Best part is it's cheap! http://paint-and-supplies.hardwarestore ... 60083.aspx

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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Mon Apr 23, 2012 8:13 am 
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Joined: Thu Jun 02, 2011 9:02 am
Posts: 30
Location: Perth, Western Australia
how do you replace the plastic chrome on interior pieces

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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Wed Apr 25, 2012 5:02 am 

Joined: Mon Jan 23, 2012 2:22 am
Posts: 83
Location: Qld
have to get it rechromed


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 Post subject: Re: How-To: Repainting Automotive Plastics
PostPosted: Thu Apr 26, 2012 6:35 pm 

Joined: Fri Jan 13, 2012 7:40 pm
Posts: 152
Location: Silverdale, Washington, USA
Gem wrc wrote:
how do you replace the plastic chrome on interior pieces


As uras1 mentioned, you would have to strip the parts and have them rechromed. Since they are plastic, youre going to want to be pretty careful not to gouge the plastic before you rechrome it. Since its a highly polished surface, youre going to want to make sure you do it right. Any mess in the job will show like crazy.

I would recommend taking it to a place to have them refinished. Or I would just buy replacements...

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1969 Datsun 510 4dr.
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