DIY: 850 Dashboard Repair


Oreo931
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On 5/2/2016 at 2:33 PM, Oreo931 said:

Now to the bad part :( . I sprayed the plastic piece with a coat of black SEM interior paint. For some reason, the repaired portions of the plastic stood out like a sore thumb. My next idea was to try and cover up these imperfections with some textured paint. So I sanded the area down, and sprayed the plastic with some rustoleum black textured paint. As soon as the paint hit the plastic, I heard loud cracks, looked down, and saw that some of the thinner cracking I had repaired was now re-cracked!!! I don’t know if there was a chemical reaction between the paint and plast-aid, or if the cold aerosol spray reacted with the plastic, or what, but the point is, it cracked. 

Assuming you used Rustoleum Stops Rust Textured Black paint from a spray can it contains 50% acetone and that would have directly attacked the methyl methylacrylate that is the monomer used to fuse the powder in Plast-Aid. That's my theory at least.

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2 hours ago, Burn-E said:

Assuming you used Rustoleum Stops Rust Textured Black paint from a spray can it contains 50% acetone and that would have directly attacked the methyl methylacrylate that is the monomer used to fuse the powder in Plast-Aid. That's my theory at least.

Well shiiiiit.

I see you're still living up to your member title. 

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3 hours ago, Oreo931 said:

Well shiiiiit.

I see you're still living up to your member title. 

Among the many other categories we sell into, my company manufactures all of the products under the Permatex brand (direct competitors to Loctite and Plast-Aid and JB Weld).  I talk with chemists about these kinds of issues on a regular basis. Your assumption is right, if you had used a water based paint with a roller or air gun you likely wouldn't have run into that issue.

Thanks for the write-up, I appreciate the insights you shared around the specifics for reinforcing the upper mount points.

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  • 1 year later...
9 hours ago, AJp80 said:

Thanks for the write-up @Oreo931. Do you still have the photos for this somewhere? I'm about to repair my dash, and the photos would be useful.

The pics are still there. I don't have the time to rehost them. You can get around the photobucket block by installing a plugin on chrome. I use this one: https://chrome.google.com/webstore/detail/photobucket-hotlink-fix/kegnjbncdcliihbemealioapbifiaedg?hl=en

Alternatively, you can view the entire album of dash repair pics here: http://s104.photobucket.com/user/iamawass/library/Dash Repair

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  • 2 weeks later...

I did the Chrome plugin thing (pretty cool, did not know it existed) and printed page 1 to pdf with all the images. Here it is if anyone else is interested. Thanks for the great write-up. I had forgotten about this one.

Direct link: Volospeed_-_850_Dash_Repair.pdf

Dropbox Link: Volospeed_-_850_Dash_Repair.pdf - Dropbox

Edited by JA VOLVO
Added Dropbox link
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  • 3 weeks later...

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