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Heat resistant paint for fins on a 1973 Commando Roadster

Discussion in 'Norton Commando Motorcycles (Classic)' started by Winberry61, Jul 27, 2019.

  1. Winberry61


    Feb 24, 2019
    What type of heat-resistant paint has anyone used to paint the fins on a 1973 Norton Commando Roadster ?
  2. swooshdave


    Apr 15, 2009
    I just used high temp spray paint. Someone commented it was too shiny.
  3. jbruney


    Jan 5, 2019
    I believe the original had a bit of gloss to it if I recollect right. Anyway you can get the VHT in flat or semi-gloss. The Krylon hi-temp holds up well enough also if the surface is clean once it cooks.
  4. gtiller

    gtiller VIP MEMBER

    Nov 5, 2012
  5. joe czech

    joe czech

    Feb 21, 2019
    Last edited: Jul 28, 2019
  6. illf8ed

    illf8ed VIP MEMBER

    Dec 30, 2003
    And to be original both 750 and 850 Commandos had silver/aluminum colored barrels. Think it it was to show they weren’t combats. In ‘74 they went back to black.
  7. jsnorton


    Oct 10, 2018
    I used rustoleum flat black hi temp paint. Looks nice and has lasted several years.
    Dommie Nator likes this.
  8. lazyeye6


    Feb 28, 2014
    I've had great success with both PJ1 and VHT. Note that different black paints in their product lines will have
    different degrees of gloss. I find high gloss to be offensive. They have silver/
    aluminum paint as well.
    Last edited: Jul 28, 2019
  9. cliffa


    May 26, 2013
    How about brush on paints, any recommendations ?


  10. Dommie Nator

    Dommie Nator VIP MEMBER

    Apr 2, 2013
  11. B+Bogus


    Jun 28, 2009
    Hammerite smooth works, and can be sprayed or brushed. It's a traditional enamel, so probably pretty close to factory (at a guess).
    I forgot to remove the masking from the last barrels I did and the kitchen stank for hours after 'processing'.
    Wifey saw the funny side eventually.
  12. 850cmndo


    Dec 9, 2009
    Dupli-Color Engine Enamel Ceramic - DE1615 Aluminum. Does NOT yellow. Nice matte finish. Used it top to bottom. Holding up very well despite showing only 500 degrees on the can.
  13. texasSlick

    texasSlick VIP MEMBER

    Jan 2, 2013
    According to physics, matte black IS better at heat dissipation (by radiation), than gloss black.... but better by only by 5% or less.

    Unless one can get new hi tech NASA type paint, black rattle can paints have emissivity (e), of about 0.9, compared to metallic gold or silver of about 0.3 - 0.4. Flat black e is about 0.94 - 0.96. Hi tech black can get e very close to a perfect 1.0.

    I used Rustoleum VHT matte black, then brushed gloss black on the fin edges, and cylinder base (insignificant heat transfer regions).

    Last edited: Jul 30, 2019
  14. texasSlick

    texasSlick VIP MEMBER

    Jan 2, 2013
    The matte black brush on paint I used on my BBQ grill ought to work. Got it at my local wood stove and BBQ cooker store.

  15. SteveA


    Dec 20, 2011
    Simoniz black enamel.
  16. MichaelB

    MichaelB VIP MEMBER

    Jan 14, 2004
    VHT Satin Black for the Win....
  17. batrider


    Aug 9, 2008
    VHT gloss black caliper paint. Good to 900 degrees F. I painted mine in situ with a small brush between the fins and then spraying after masking well. Smells bad for a couple hundred miles as the paint cures. This works better than anything else I've used and this is about the fourth time I've painted the barrel in 40+ years. I think it was concours who recommended it and since then I've used it on a couple B&S Model As and a Kohler K321 single also. Wonderful stuff.
    nortriubuell likes this.
  18. drp


    Feb 11, 2011
    I wanted to stay with the silver on my 1973 850 so initially I used a silver barbeque spray paint but I sprayed it into a jar and then brushed it on but the paint was rather thin and needed a few coats. However I went to a local auto swap meet and thee was a guy there selling a high temp POR silver header paint in a small jar that works well.
  19. Craig

    Craig VIP MEMBER

    Dec 20, 2005
    Years ago I tried “stove black” it was flat black .... easy prep , didn’t last long but quick touch ups .... eventually used some semi-gloss black engine paint it still looks good
  20. fiatfan

    fiatfan VIP MEMBER

    Aug 9, 2015
    Instead of starting a new thread I´ll sneak in here, hope it´s ok....What about the crankcases, my -73 -850 looks like it´s painted, a yellow mis-coloration behind the barrels, typically under the carbs. Any specially good paint remover/new paint for this? I´d really wan´t them just bare metal but I guess it won´t last long....

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