All Small Six Cork gasket improvement?

[DON]

In the process of putting together my 200 project, I looked for rubber gaskets. Didn’t come up with much availability, soooo, I came up with the idea of, call it pre-sealing the cork. For lack of calling it anything else. Take my rtv and dissolve it and apply it to the cork. On a spare gasket I used several different solvents and did test spots. Let them dry thoroughly and then I cut the cork to see the penetration. What I found out was a combination of mineral spirits ( which will dry out) and brake clean worked the best. I mixed it so it is a little thinner than sour cream but not watery. Applied two or three coats, letting it dry in between. I haven’t installed them yet but they look nice. Any thoughts or has anyone done this?

 

[powerband]

adding to this , most RTV's like typical Blue are not spec'd as resistant to most automotive oils . Afaik only 'Ultra Black' from Permatex and a few others specify 'oil resistant' and no RTV is modern fuel proof...
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(just changed Nissan truck oil pan - oil pan to block flange gasket is below oil level in filled crankcase so Oil-Resistant RTV is instructed specifically. )

Cork gaskets can be treated , the Holley front bowl carbs used a cork/rubber for efficient seal but modern fuel eats the rubber. Also can attempt gasket 'treatment' with 'Copper Spray' .

https://www.amazon.com/Permatex-82180-Maximum-Resistance-Silicone/dp/B0002UEN1U?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&smid=ATVPDKIKX0DER&th=1

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only oil resistant RTV, Copper Gasket Spray, and 'High-Tack'on my shelf. Copper spray is only spec'd as Fuel resistant.
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https://www.tractorsupply.com/tsc/product/permatex-copper-spray-a-gasket-hi-temp-adhesive-sealant-12-oz-1017814?store=750&cid=Shopping-Google-Local_Feed&utm_medium=Google&utm_source=Shopping&utm_campaign=&utm_content=Local_Feed&gad_source=1&gclid=EAIaIQobChMIz4na3bf7gwMV4UlHAR3JBwr1EAQYDSABEgL_CfD_BwE

hav e fun
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[DON]

I have found the Permatex gasket sealer, fuel resistant to work well on my tri-power setup with Holley 2300’s. I put some on both sides of the blue Holley gaskets and accelerator pump. A definite improvement . I have even reused the gaskets successfully