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DIY: Black Plastic Restoration

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    DIY: Black Plastic Restoration

    Hey guys,

    Thought I'd share my experience. This has been documented but the pictures show how well it really works. Here is what you need

    Boiled linseed oil
    Paint thinner (mineral spirits)
    Isopropyl alcohol (optional)
    Cloth/towel



    The alcohol is to help clean and prep the area. You can do this by other means. Make sure you get boiled linseed oil and not non-boiled.



    So here's what inspired me to give this a go. My air filter housing for my m3 is pretty nasty looking. I just got the AFM refurbished from Greg, so there's no way I can use the housing as is. I tried using other dressing sprays but it didn't work very well.

    Well, after cleaning the area with isopropyl alcohol, I mixed the linseed oil and paint thinner about 50/50. Then I dabbed my cloth in it and applied it to the housing. I waited a minute then wiped the excess.





    I think the pictures say it all. The plastic looks so much better, almost new. I wish I knew this before I painted all my trim pieces with trim paint, because this would of restored them perfectly. You can expect to pay about $15 for everything you need.

    So I'd strongly recommend this to restore door trim, bumper trim, any black plastic pieces really. I was about to spend $160 on a new filter housing, no need to anymore.
    Current:
    1989 325i
    1988 M3
    1987 325ic
    Past:
    2001 330ci
    2001 M3

    #2
    That looks unreal. Thanks for the write up---added to my shopping list.
    Turbo M50 4 Door Build thread here 4 Sale thread

    Comment


      #3
      Good shit dude....thanks!!
      FEEDBACK:
      http://www.r3vlimited.com/board/showthread.php?t=316212

      BMWCCA #398608
      IG @yagayo38

      "The Best E30's were built with two camshafts four cylinders and sixteen valves!".

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        #4
        I'll have to give this a try. How long does it last ?
        sigpichttp://www.germanaudiospecialties.com/

        1986 325es :early:

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          #5
          Where did you get the Boiled Linseed Oil???
          1997 328i - SOLD
          1991 325is - SOLD
          2002 325i - SOLD :(


          Currently:
          1991 318is
          2011 328i xDrive
          2017 Highlander - Toy Hauler

          sigpic

          Comment


            #6
            Boiled Linseed Oil

            You can get it at Home Depot or any hardware store. Usually in the wood finishing section. Just don't leave any rags around with this stuff on them. It is known to cause spontaneous combustion because it generates heat as it dries.

            Comment


              #7
              Sweet! This is going to help out so much.
              sigpic

              1999 528it - Daily Driver “Dad Wagon”
              1991 325is - 2.8L Budget Stroker Garage Slut
              1991 318is - Sold
              1986 325 - Sold

              Instagram - Lamoursum

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                #8
                Cool!

                thanks for sharing.


                jou ma se poes in 'n fishpaste jar.
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~

                Transaction Feedback

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                  #9
                  Originally posted by Dakotademon7 View Post
                  I'll have to give this a try. How long does it last ?
                  I did this a few weeks ago, and it still looks the same as It did when I first did it. I don't imagine It will wear off for a few months atleast

                  Originally posted by Martin C. View Post
                  Where did you get the Boiled Linseed Oil???
                  Home Depot, in the paint thinner section
                  Current:
                  1989 325i
                  1988 M3
                  1987 325ic
                  Past:
                  2001 330ci
                  2001 M3

                  Comment


                    #10
                    Nice. What you were cleaning was most likely the cosmoline painted or sprayed on by the factory (Did European cars get it too? Or just cars that were going on ships to prevent salt water damage?)

                    Please post up in a year or to. Would love to see the long term.

                    I've tried that "back-to-black" stuff when I had an e21, and it worked....for a month....then it was more "back-to-more-gray-than-it-was-when-you-started"
                    Originally posted by Matt-B
                    hey does anyone know anyone who gets upset and makes electronics?

                    Comment


                      #11
                      Yes, would love to see the longevity. I grabbed the "wipe new" crap from the as seen on tv section and it worked well for the summer. Will need to reapply in the spring. Wonder if the linseed approach will help with any dried on wax....
                      Swanny!
                      SUCKERS.

                      Comment


                        #12
                        Originally posted by Swanny View Post
                        Yes, would love to see the longevity. I grabbed the "wipe new" crap from the as seen on tv section and it worked well for the summer. Will need to reapply in the spring. Wonder if the linseed approach will help with any dried on wax....
                        Should be a good wax sealer you can apply afterwards to protect the raw plastic layer

                        Sent from my SCH-I605 using Tapatalk
                        Last edited by eduTechnic; 03-01-2014, 08:29 AM.
                        Turbo M50 4 Door Build thread here 4 Sale thread

                        Comment


                          #13
                          Double post
                          Turbo M50 4 Door Build thread here 4 Sale thread

                          Comment


                            #14
                            Great trick and nice writeup thanks :)

                            Comment


                              #15
                              Ill definitely check in here in a few months to see show it's holding up.
                              Current:
                              1989 325i
                              1988 M3
                              1987 325ic
                              Past:
                              2001 330ci
                              2001 M3

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