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Engine Paint - PJ1, VHT, or POR 15?

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    #46
    So here's another question...

    Given the POR-15 high heat paint needs to be baked on at over 150 degress (Celcius for you guys in the US), I have two options...

    1. Peeve the wife and stick it in the kitchen oven.

    2. Do something really dodgy and scary and stick it in the gas BBQ (solid plate, not grill).

    If I was to stick it in the kitchen oven and wrap it up in foil, do you reckon I could keep the smells out? Or is that a waste of time? Given I can smell food through foil when it's baking, I'm guessing a waste of time...

    I'm just really nervous about sticking it in the gas BBQ even if it won't be exposed directly to the naked flame.
    1982 GS450E - The Wee Beastie
    1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

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      #47
      Use the BBQ.
      Ed

      To measure is to know.

      Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

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        #48
        Pete

        I have had no issues with the Glossy Black engine paint and it doesn't seem to need to be cured on my 1100ED





        This Silver has no issues either that I have used.




        This stuff has repeatedly bubbled, chipped and flaked almost within the first 1 minute of startup. This was after 3 sand blasting including curing with a heat gun and IR temperature sensor for what seemed an eternity. Calling tech support . Maybe it works in outer space, but that did not do me much good. I used an enamel barbecue paint and it did not chip one iota

        I WONT USE THIS STUFF or any of the high heats again for Exhaust.



        Pos

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          #49
          That's very interesting...

          The engine enamels are moisture cured, don't need to be baked, but the high heat stuff needs to be baked.

          Perhaps I should just stick with the engine enamel? Now I'm confused...
          1982 GS450E - The Wee Beastie
          1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

          sigpic

          450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

          Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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            #50
            Won't the engine heat cure the paint? Just try not to spill any gas on the thing until after a couple of heat cycles.
            Ed

            To measure is to know.

            Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

            Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

            Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

            KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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              #51
              Normally yes, but if you don't cure it in a short period of time, the paint doesn't bond properly to the metal and moisture can get in, resulting in peeling etc.

              So given the length of time it's taken me to get to this point, I can't see me having the engine put back together and fired up soon enough to be able to cure it with the engine heat, so will have to bake.
              1982 GS450E - The Wee Beastie
              1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

              sigpic

              450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

              Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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                #52
                Well I bit the bullet yesterday and ordered some paint (PPC/POR-15 stuff)...

                Black Velvet for the crank cases, head etc.

                Glisten PC to put a clear coat over the polished case covers, starter motor cover, etc.

                Blackcote for the frame, swingarm, and hopefully fork legs.

                I also got some solvent and other stuff as the guy from PPC recommended thinning the Black Velvet slightly to help brush it on as it's a bit thick straight out of the tin.

                So hopefully sometime around May or June I'll actually have some paint on the engine and be able to get started with the rebuild. My mate should be picking it all up from the reseller tomorrow.
                1982 GS450E - The Wee Beastie
                1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                sigpic

                450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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                  #53
                  Hi Pete, Nessism is correct about the heat regarding engine fins. The block and the rear of the block that has limited air flow will retain higher temps in the case that the fins that are thinner with a greater surface area and drawing heat away in the air flow. Street rodders painting blocks and encasing them in lots of steel have used POR15 for years and seem to be happy with the results so Iam hoping it will be fine for an air cooled block. Let us know how it turns out, I keen to hear about the Glisten PC on the cases as Iam planning to do the same with mine. Cheers.
                  Last edited by Shin-Ken 1074; 04-26-2009, 07:11 PM.
                  Badgezz, we don need noh stinkin' badgezz!
                  Shin-Ken 1074
                  1982 GSX1100SXZ Wire Wheel Katana - BOM Nov 2011
                  1981 GSX1135 Katana Build completed Mar 2024, Curb Weight, all fluids and 21 lt fuel = 206 kg.

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                    #54
                    I'll definitely be keeping you all up to date with how I go, may just not be very quick updates :-)
                    1982 GS450E - The Wee Beastie
                    1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                    sigpic

                    450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                    Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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                      #55
                      Pete

                      I would strongly suggest getting even a cheap sprayer. Even though the Por-15 paints flow out very smoothly, they flow out so smooth that there are drips at the bottom of the part if you try and brush.

                      With a little bit of adjustment, some type of a simple sprayer will produce wonderful results and you won't be trying to cut drips off the edge of the parts.

                      Jim

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                        #56
                        Originally posted by posplayr View Post
                        I would strongly suggest getting even a cheap sprayer. Even though the Por-15 paints flow out very smoothly, they flow out so smooth that there are drips at the bottom of the part if you try and brush.

                        With a little bit of adjustment, some type of a simple sprayer will produce wonderful results and you won't be trying to cut drips off the edge of the parts.

                        Jim
                        Jim,

                        Did you paint your bodyparts ?

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                          #57
                          Joe,
                          Yea I did the body, but that was with PPG paints not Por-15
                          Grey primer
                          OEM Red Base
                          Too much gold pearl
                          Clear
                          Decals
                          Final Clear.
                          I like the way it came out.
                          Jim

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                            #58
                            Thanks for the tip Posplayer,

                            I plan to start with the simplest part, the valve cover, and see how it goes.

                            My housemate does have a sprayer, but I've never sprayed before and my garage isn't really set up in a way that will make it easy to spray, which was why I was hoping to brush.

                            I'll keep what you have said in mind as I brush the first bit and see if it is going to be too awkward cleaning up drips.

                            The other concern with spraying is that with the moisture curing paints (all but the high heat ones), they advise great caution as any paint spray that gets in your lungs will cure in there due to this, so they recommend if you do spray to use proper protective spray gear, which I don't have currently.

                            Anyway, will see how I go with the first bit and decide what's going to be best from there. My first time doing all this, so it's all gonna be a big learning curve.
                            1982 GS450E - The Wee Beastie
                            1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                            sigpic

                            450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                            Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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                              #59
                              Hate to jump in here, but this sounds fun. What's the best way to prep your metals for paint? From strip to (before) paint?

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                                #60
                                Can't comment on the best way yet, coz I'm just about to start for the first time

                                However, to prep for the high heat paint, I'll be stripping the paint, then using the POR-15 marine clean and metal ready etc. to get a good surface for the paint to stick to.

                                For the bits I'm going to polish, I'll be doing the same, except I won't be using metal ready and instead will polish it all up first then use the POR-15 AP120 to prepare it for the clear coat.

                                As far as the frame, forks, swingarm, etc. goes I'll just be keying the existing paint with sandpaper, using the marine clean and metal ready, then going straight over the top.

                                At least that's the plan at the moment, but I do need to reread all the prep notes from POR-15 to make sure I'm getting the best surface I can to paint.
                                1982 GS450E - The Wee Beastie
                                1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                                sigpic

                                450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                                Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

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