Unsilenced breather question

[Jim914]

Pulled out my air breather on my 65 project. The base has a little rust on it. I noticed the outer rim under the filter has sort of a orange rubber coating. It has the texture of a air breather. Is this factory? Or this pulled off a old filter.
Thanks for the knowledge

 

[bearman]

I would believe to clean it up from old air filter. Heat from engine maybe the cause.

 

[Jim914]

I would believe to clean it up from old air filter. Heat from engine maybe the cause.

Thanks

 

[R413]

Orange silicone sealer? The filter doesn’t touch the base there does it?

 

[bearman]

Either way silicone not suppose to be there. I have seen alot of the silicone base air filters Leave some on housing from the heat.