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I often see builds where people smear JB Weld all over the inside of something that needs to stand up to ejection charge heat. It's heavy and looks like heck and I hate it.
I'm thinking a lot about gap staging and other setups where a lot more structure than normal will see ejection charge, and started thinking about alternative coatings that would be more like paint, capable of sealing the cardboard and wood against high temps while keeping it lighter, neater, and not screwing up dimensions.
Found this thread discussing header paint:
https://www.jalopyjournal.com/forum/threads/best-header-paint.1141405/
I think this would probably be the ultimate, but it's $50/gallon to buy surplus leftovers on fleabay:
https://spinoff.nasa.gov/spinoff1996/67.htmlBTW, "siloxane" is a chemist's term for what us normal people call "silicone."
ETA: Further checking indicates the $50/gallon price is only one part of the two-part system, so it's really hundreds of dollars for price of entry. Can reasonably cross this one off any list I'm going to make.
Related search led to this discussion of Thermalox and Stove Bright:
Thermalox is at least a silicone-based resin. Best shipped price I can find is here:
https://www.fire-parts.com/products/thurmalox-satin-black-stove-paint?variant=29932056641622
Stove Bright is here:
https://www.amazon.com/gp/product/B0052SWYZY/
Also mentioned in the HAMB thread is the classic VHT:
https://www.oreillyauto.com/detail/...roof-11-ounce-aluminum-spray-paint/vht1/sp117
And of course, there's always the lowest-price point of entry, the Rusto BBQ paint:
https://www.homedepot.com/p/Rust-Ol...terior-Exterior-Spray-Paint-7716830/100165100
Has anyone else tried these options as alternatives to the soul-destroying JB Weld smear?
I'm thinking a lot about gap staging and other setups where a lot more structure than normal will see ejection charge, and started thinking about alternative coatings that would be more like paint, capable of sealing the cardboard and wood against high temps while keeping it lighter, neater, and not screwing up dimensions.
Found this thread discussing header paint:
https://www.jalopyjournal.com/forum/threads/best-header-paint.1141405/
I think this would probably be the ultimate, but it's $50/gallon to buy surplus leftovers on fleabay:
https://spinoff.nasa.gov/spinoff1996/67.htmlBTW, "siloxane" is a chemist's term for what us normal people call "silicone."
ETA: Further checking indicates the $50/gallon price is only one part of the two-part system, so it's really hundreds of dollars for price of entry. Can reasonably cross this one off any list I'm going to make.
Related search led to this discussion of Thermalox and Stove Bright:
Thermalox is at least a silicone-based resin. Best shipped price I can find is here:
https://www.fire-parts.com/products/thurmalox-satin-black-stove-paint?variant=29932056641622
Stove Bright is here:
https://www.amazon.com/gp/product/B0052SWYZY/
Also mentioned in the HAMB thread is the classic VHT:
https://www.oreillyauto.com/detail/...roof-11-ounce-aluminum-spray-paint/vht1/sp117
And of course, there's always the lowest-price point of entry, the Rusto BBQ paint:
https://www.homedepot.com/p/Rust-Ol...terior-Exterior-Spray-Paint-7716830/100165100
Has anyone else tried these options as alternatives to the soul-destroying JB Weld smear?
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