What paint to use on ellipsoid?

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  • wodcutr
    R3VLimited
    • Apr 2009
    • 2193

    #1

    What paint to use on ellipsoid?

    Hey everybody, I have US spec ellipsoids and one of my low beam lenses broke. I got a replacement lens, but the reflector has a few spots where the silver has come off. What product is best to get the mirror back looking like new? Thanks!
    The difference between porcupines and BMWs is that porcupines have the pricks on the outside!
  • e30this
    No R3VLimiter
    • Dec 2007
    • 3580

    #2
    Maybe find a whole new bucket? or high heat silver engine paint?

    Comment

    • GaryE30
      R3V Elite
      • Oct 2003
      • 4791

      #3
      Don't think you'll be able to get a reflective surface back. I'd get a new housing.
      Estoril E36 M3/4/5 | Toledo E53 X5 3.0 | LeMans E90 335D M-Sport

      Comment

      • nando
        Moderator
        • Nov 2003
        • 34827

        #4
        paint isn't going to work - you need a mirror finish.
        Build thread

        Bimmerlabs

        Comment

        • moatilliatta
          R3V OG
          • Feb 2005
          • 6120

          #5
          They make a "chrome" vinyl that i used in my ellipsoid reflectors. Not like new but better than what they was before. I had to cut strips out flow with the curvature of the reflector.

          I was up above it, Now I'm down in it ~ Entropy - A Build thread.
          @Zakspeed_US

          Comment

          • xLibelle
            R3VLimited
            • Aug 2004
            • 2673

            #6
            wow

            Comment

            • wodcutr
              R3VLimited
              • Apr 2009
              • 2193

              #7
              Vinyl seems that it would not be able to take the heat very well. I had no idea that this was going to be that hard to do. I read a post on here that talks about painting the reflector black to get smoked ellipsoids and that the reflector does not do anything really but block light. What say you?
              The difference between porcupines and BMWs is that porcupines have the pricks on the outside!

              Comment

              • Julien
                R3V OG
                • Feb 2004
                • 7471

                #8
                paint it black, add black crosshairs to your highbeams, profit.


                don't forget to toss your headlights in the oven to get the lenses off

                GL
                Julien
                Build Threads:
                Pamela/Bella/Betty/325ix/5-Lug Seta/S60R/Miata ITB/Miata Turbo/Miata VVT/951/325xi-6

                Comment

                • BrewCity11
                  R3VLimited
                  • Mar 2008
                  • 2335

                  #9
                  Are you talking about the reflector on the inside of the projector? Or the round disk at the face of the light?

                  If its the latter, just paint them black like Julien said.

                  If it's the actual reflector, not much you can do besides what moatilliatta said. I've looked into how the original is actually done, and it's a complicated process, somewhat like what it takes to chrome a bumper. Not worth it. You'd be better off buying another light altogether.
                  turk@gutenparts.com

                  Originally posted by Janderson
                  Properly placed zip ties will hold bridges together.

                  Comment

                  • wodcutr
                    R3VLimited
                    • Apr 2009
                    • 2193

                    #10
                    So what you are saying is that the chrome surround that the ellipsoid projector sits in really doesn't do anything as far as reflecting the light. Why was it silver then? Painting it black does not effect light output?
                    The difference between porcupines and BMWs is that porcupines have the pricks on the outside!

                    Comment

                    • nando
                      Moderator
                      • Nov 2003
                      • 34827

                      #11
                      DOT regulations? who knows

                      the basic technology in ellipsoids hasn't changed much, no other projector I've seen has two reflectors. It could be that they did it just because the E30 was originally designed for the old school sealed beam style lights and they needed something to fill the space.
                      Build thread

                      Bimmerlabs

                      Comment

                      • wodcutr
                        R3VLimited
                        • Apr 2009
                        • 2193

                        #12
                        On a factory hella smoked ellipsoid, is that part of the headlight assembly black? Someone was trying to tell me that on a smoked ellipsoid the lens is the part that is smoked or painted black.
                        The difference between porcupines and BMWs is that porcupines have the pricks on the outside!

                        Comment

                        • Wh33lhop
                          R3V OG
                          • Feb 2009
                          • 11705

                          #13
                          Originally posted by nando
                          paint isn't going to work - you need a mirror finish.
                          It won't be quite the same, but there is plenty of paint out there that should come "close enough," wouldn't you say? Certainly better than faded matte grey.
                          paint sucks

                          Comment

                          • Wh33lhop
                            R3V OG
                            • Feb 2009
                            • 11705

                            #14
                            Originally posted by nando
                            DOT regulations? who knows

                            the basic technology in ellipsoids hasn't changed much, no other projector I've seen has two reflectors. It could be that they did it just because the E30 was originally designed for the old school sealed beam style lights and they needed something to fill the space.
                            Basically. It would look funky to have a 2.5" low beam housing, they needed the reflective finish to keep the same overall look.

                            I did a retro in my old car and kept the old reflector, I thought it looked pretty OEM/normal, unlike the guys who paint the reflector black. No one could really tell it was aftermarket.



                            (don't mind the scrape)

                            Originally posted by wodcutr
                            On a factory hella smoked ellipsoid, is that part of the headlight assembly black? Someone was trying to tell me that on a smoked ellipsoid the lens is the part that is smoked or painted black.
                            Yes, the surrounding "reflector" is black on the smoked lenses, not the lens itself. Someone correct me if I'm wrong here.
                            paint sucks

                            Comment

                            • wodcutr
                              R3VLimited
                              • Apr 2009
                              • 2193

                              #15
                              That makes a lot of sense. BMW did not want to change the look of the car in a way that would be detrimental to what was already established. I guess I could just silicone the good lens on and not mess with it any more. I like the smoked look myself but this is my daughters car and I doubt she would really appreciate the effort to smoke all the lights. Hell she is probably just glad to be behind the wheel and could care less about the differences in headlight looks!
                              The difference between porcupines and BMWs is that porcupines have the pricks on the outside!

                              Comment

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