collision repair and auto painting

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  • oliver.r
    No R3VLimiter
    • Mar 2012
    • 3839

    #271
    Originally posted by bmwstephen
    When I see many two stage cars painted, dust is pretty prominent in the clear. What are methods shops do to prevent contamination? I don't notice it too much in the base...

    It must be especially tricky when you have to flash between coats
    base dries almost instantly so if dust gets on it you can just wipe it off with a tack cloth.
    clear coat takes multiple hours to dry so the is a greater chance for contamination to get on the surface.

    the best way to prevent it is to have a clean well funtioning booth.

    it is inevitable it will always happen but it can be limited

    Comment

    • bmwstephen
      R3VLimited
      • May 2009
      • 2463

      #272
      does the ability for the booth with an oven help in anyway?

      Comment

      • oliver.r
        No R3VLimiter
        • Mar 2012
        • 3839

        #273
        Originally posted by bmwstephen
        does the ability for the booth with an oven help in anyway?
        ehhhh kinda. dosnt make a big diference. it dires faster but not fast enought to keep the dut from getting on it

        Comment

        • oliver.r
          No R3VLimiter
          • Mar 2012
          • 3839

          #274
          i would appreciate it if you guys could like my business page!

          go like!http://www.facebook.com/home.php#!/p...739299?fref=ts

          Comment

          • cardnation
            Advanced Member
            • May 2012
            • 123

            #275
            Oliver, thanks for all the great info, its been incredibly educational.

            I just can't find plastic bumpers around here, AT ALL. So I've been thinking about repairing as I'll need to repaint both bumpers anyway.

            I 've been told something like this would work well. 3M Automix Universal Adhesive 8223

            After which I would sand it all down. Apply a filler primer. Then drop it off for base and clear.

            Am I on the right track? Any tips or words of wisdom?


            FYI, I do have the missing piece. (This is a rear bumper)


            Cracked but not separated like above. (rear bumper as well)
            .

            Comment

            • oliver.r
              No R3VLimiter
              • Mar 2012
              • 3839

              #276
              ^ thanks for the kind words mate.
              Don't buy that it's not the correct product for your repairs.
              I think I covered it in this thread at one point but its probably lost.
              As soon as I get on a computer I will give you a better idea of what you need.

              Comment

              • oliver.r
                No R3VLimiter
                • Mar 2012
                • 3839

                #277
                Originally posted by cardnation
                Oliver, thanks for all the great info, its been incredibly educational.

                I just can't find plastic bumpers around here, AT ALL. So I've been thinking about repairing as I'll need to repaint both bumpers anyway.

                I 've been told something like this would work well. 3M Automix Universal Adhesive 8223

                After which I would sand it all down. Apply a filler primer. Then drop it off for base and clear.

                Am I on the right track? Any tips or words of wisdom?


                FYI, I do have the missing piece. (This is a rear bumper)


                Cracked but not separated like above. (rear bumper as well)
                here ya go
                http://www.evercoat.com/productcategory.aspx?cat=6



                thats the products that we use and i trust them a lot. hopefully this guides you in the right direction.
                if you have any more questions pleasse pm me :)

                Comment

                • cardnation
                  Advanced Member
                  • May 2012
                  • 123

                  #278
                  Originally posted by oliver.r
                  here ya go
                  http://www.evercoat.com/productcategory.aspx?cat=6



                  thats the products that we use and i trust them a lot. hopefully this guides you in the right direction.
                  if you have any more questions pleasse pm me :)

                  You are doing gods work my friend! :bow: Thank you!
                  .

                  Comment

                  • bmwstephen
                    R3VLimited
                    • May 2009
                    • 2463

                    #279
                    Oliver,

                    On an e30 chassis, the bottom of the A-piller looks like one of the trickiest areas to prep for a solid paint job. Specifically, the fender, window trim, and door hides a good portion of the area.

                    what would be your recommend prep method to get good coverage, prevent a paint line, and adhesion?

                    Comment

                    • Cabriolet
                      R3V OG
                      • Apr 2010
                      • 9620

                      #280
                      Simple. take the fenders off.

                      srsly just get your car painted. Let Oliver work out the details.

                      Observe a perfect paint job http://www.flickr.com/photos/4385902...7630055325830/
                      Much wow
                      I hate 4 doors

                      Comment

                      • bmwstephen
                        R3VLimited
                        • May 2009
                        • 2463

                        #281
                        Originally posted by Cabriolet
                        Simple. take the fenders off.

                        srsly just get your car painted. Let Oliver work out the details.
                        in time, in time, just want to gain knowledge for now. I know taking off the fender is only half the solution. There is still an area behind the A pillar in which the front door covers a good portion and might cause problems down the line. I noticed it even in your pics the door was sprayed closed
                        Last edited by bmwstephen; 11-08-2012, 11:25 AM.

                        Comment

                        • oliver.r
                          No R3VLimiter
                          • Mar 2012
                          • 3839

                          #282
                          Originally posted by bmwstephen
                          in time, in time, just want to gain knowledge for now. I know taking off the fender is only half the solution. There is still an area behind the A pillar in which the front door covers a good portion and might cause problems down the line. I noticed it even in your pics the door was sprayed closed
                          we sprayed the jambs on erics car so we painted the inside and outisde.
                          remove the fenders and sand it all by hand. thats all there is to it

                          Comment

                          • bmwstephen
                            R3VLimited
                            • May 2009
                            • 2463

                            #283
                            Oliver,

                            With the growing adoption of waterborne paint, how has shops like yours retooled your equipment to ensure correct application of the paint?

                            For example, a lot of the new ovens now have cross directional airflow to dry/flash the paint properly albeit at a hefty price that isn't feasible for purchase now for most shops. Does placing portable fans into the booth simulate this procedure or risk contamination?

                            Also, another benefit to waterborne paint is that it is really easy to clean off a spray gun through simple rinsing. Does that mean that waterborne base on a car is susceptible to washing off if there's no clear coat on it? I assume thats why clear coats are still solvent based
                            Last edited by bmwstephen; 11-10-2012, 10:35 PM.

                            Comment

                            • oliver.r
                              No R3VLimiter
                              • Mar 2012
                              • 3839

                              #284
                              1 we use these guys to dry the paint http://www.coastairbrush.com/products.asp?cat=637
                              it could add to contamination if you are shooting in a dirty booth.
                              remember most of contamination happens in in the clear coat.
                              base dries pretty fast.

                              if you put water straight on waterborne paint it will come off.
                              clear is still solvent so it protects it.
                              there are waterborne clears but i have not used them and do not know how they work

                              Comment

                              • bmwstephen
                                R3VLimited
                                • May 2009
                                • 2463

                                #285
                                Oliver,

                                Etching primer is used in exposed metal. That I understand. However when doing spot painting on an area of a panel, doesnt etching primer harm the surrounding paint because of its acidic characteristics?

                                Sent from the heavens

                                Comment

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