Powder Coating

[oldmanjoe]

Have you considered using High Temperature Powder Coating Tape or Kapton tape used for masking sensitive connectors while hot air soldering of electronic components? 

I suspect simple strait lines like those you tried for the Pink Floyd  logo look on one of your reels would be a good candidate for TekLine Glass Cloth High Temperature Powder Coating Tape.

Kapton tape might also work as its is good up to 300-400 degrees Celsius. It's is inexpensive, easily cut and might work to mask off areas for a multi-stage finish (masking before a "green bake", then adding a second coat before the final cure.

You might want to experiment with a some sheet metal using some stencils or Cricut (if your wife has one) or similar device to cut the masks on the Kapton tape and apply the masks prior to powder coating.

I do not have a Cricut Machine yet .  You have peaked my interest in this Kapton tape , I am not familiar with it .  Can you provide a link ?   Yes that was the problem to get the prism lines of color .

[oldmanjoe]

I am trying to do the badges . There is vacuum tool to remove unwanted power , like the size of a needle .  Or I can paint when the hands are steady and do clean up before the bake . I will get there sooner or later !

[jurelometer]

Dave I am so glad you take the time to write out explanations and theories . I do agree with you 

Great minds think aliike

I appreciate the effort that you have put in documenting your journey with powder coating.  I am learning some new  stuff, and generally enjoying the show!

-J

[jtwill98]

I do not have a Cricut Machine yet .  You have peaked my interest in this Kapton tape , I am not familiar with it .  Can you provide a link ?  Yes that was the problem to get the prism lines of color .

Here's a good site (https://croylek.com/pages/kapton-tape?srsltid=AfmBOooWsMc2cRZjv4iDunr9XepaWhQFGIzomru-WawYjBqn5tKSifp6) that has some information on Kapton Polyimide Film, describing what it is and some of it's properties. I read somewhere that its oven safe.

I would recommend DuPont Kapton Polyimide Film brand but I imagine there are cheaper alternatives just as good. You'll need to check the adhesive properties and ensure it has silicon adhesive.

I didn't realize this, but Amazon sells Kapton sheets for 3D printing surface covering. I'm familiar with the tape variety like this one: https://www.amazon.com/dp/B08NDRY223/ref=twister_B08NDQHP8V?_encoding=UTF8&th=1

If you have some old dead battery lying around for cordless tools like a DeWalt battery, there might be some Kapton tape inside that you can use for experimentation.   

Another alternative might be this: https://tapeproviders.com/collections/high-temperature-tapes/products/wod-polyester-tape-3-5-mil-silicone-adhesive-72-yards-high-temp-resistant-for-splicing-masking-or-holding-application-pft35gs I have no experience with it but looks interesting as one of the reviews stated: "I use thus tape when powder coating stainless Steele cups and it comes off clean leaving no residue"  It too is sold on Amazon, search for "Green PET High Temperature Tape"

[jurelometer]

The kapton sheet for 3D printing beds probably has a stronger adhesive than the tape. The tape should be available from wherever you get your powder coating supplies.  There are tons of sellers on Amazon too.  They might just call it high temp tape or polyimide tape.  It is transparent, and the stuff I have has a blue tint.

It is also used to bind the transfer sheet to the part if you want to try dye sublimation.

-J

[oldmanjoe]

   OK  I have the high temp tape , I know it as pet tape .  The green tape does not stick well on the reels outer edges . Painter tape is much better sticking .  It also will take 3 cooking . The tape comes off better when it is still warm !

  From reading there are other color tape that some say sticks better .   

[Dominick]

Chili pepper...    Dominick

[jurelometer]

Interesting.  I never tried baking with the painter's tape on.  I take it off right after spraying. I would think that you run the risk of having some of the tape edge getting fused with the paint.

-J