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FYI the 1200 series Threebond like the 1211 are RTV silicone sealers. The 1100 series like the 1184 are solvent based, (some type of rubber?) semi drying sealers. RTV sealers are not gasoline resistant whereas solvent based sealers are gasoline resistant.
The instructions for the 1184 say to let it dry for 1 minute before assembly. Of course sealing a 911 case takes longer than one minute. My understanding is that solvent based sealers need to have the solvent evaporate before assembly in order to adhere and seal properly. Curil T and K2 are like this where you need to let the solvent evaporate except they never harden.
Permatex has a fairly new sealer called MotoSeal. It is like the 1184, a solvent based sealer. I wonder if it is a knock-off. I have yet to try it.
Vic
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