Thoughts about rocker cover gasket

[minijojo]

i found 3 types of rocker cover gaskets
the original cork gasket, a rubber gasket and a silicone gasket.
Does anyone have experiences with the rubber or silicone rocker cover gasket?
The cork gasket should be known....
sorry i dont find the link to the rubber gasket....
here a link to a silicone gasket (for example)
https://www.ebay.de/itm/SILICONE-REUSAB ... 2672755467
I appreciate your comments
regards
Joachim

[Declan_Burns]

Joachim,
I can recommend the rubber gaskets-only because I make them and also the the rubber tappet chest rubber gaskets.
Silicone is in my opinion not the right material due to it's oil resistance.
Regards
Declan

[Chipper]

Care to expand on what you mean by this?

[Declan_Burns]

Maurice,
If you look at this chart you will see that silicone is "unsatisfactory" for applications with lubricating oils.
http://mykin.com/rubber-chemical-resistance-chart-4

My gaskets are made from NBR.
Quote"Nitrile rubber (NBR), also called nitrile-butadiene rubber, an oil-resistant synthetic rubber produced from a copolymer of acrylonitrile and butadiene. Its main applications are in fuel hoses, gaskets, rollers, and other products in which oil resistance is required."unquote
Regards
Declan

[minijojo]

Hi Declan,
thank you for your explanations.
Guess you will gat an email from me during the next weeks
Thanks
Joachim

[Chipper]

Yes, interesting info. So, best to keep the silicone sealant for bathrooms, then, I guess...