Fuel resistant sealants

I am going to pull my fuel tank sender and look around in the tank and when I replace it I want to use a top-of-the-line-heavy-duty-never-leak sealant. (What is there now seeps a little when the tank is topped off)

No silicone here. Product must be able to be in contact with diesel fuel and not break down.

Have any thoughts on a quality product?

Indian ink gasket shelac

My Yanmar rebuild kits came with 1207c that's what I used on my fuel senders.
not a drip since

This stuff?
https://www.google.com/search?q=Three+bond+1207C&rlz=1C1KMZB_enUS575US575&espv=210&es_sm=93&tbm=isch&imgil=-B6sT-Qa98lGgM%253A%253Bhttps%253A%252F%252Fencrypted-tbn0.gstatic.com%252Fimages%253Fq%253Dtbn%253AANd9 GcQs1dlaKlOeHpXvddUqkjg8TMyFTD2A76xfjSQ6OMX389nFp6 xEnA%253B1150%253B837%253B92geJCcM4l4tHM%253Bhttps %25253A%25252F%25252Fshop.rocketindustries.com.au% 25252Fproducts%25252FTB1207C-150&source=iu&usg=__swqNaGV_nG2zWYMFGNUSWhk97IU%3D&sa=X&ei=U2s8U8LSEqmzsQSbloHQBg&ved=0CGoQ9QEwAg#facrc=_&imgrc=-B6sT-Qa98lGgM%253A%3B92geJCcM4l4tHM%3Bhttps%253A%252F%2 52Fshop.rocketindustries.com.au%252Fattachments%25 2FProduct%252F43041%252FTB1207C-150.jpg%253Fts%253D1263499182%3Bhttps%253A%252F%25 2Fshop.rocketindustries.com.au%252Fproducts%252FTB 1207C-150%3B1150%3B837

Yes there are no oil gaskets in my yanmar motors you make all the gaskets out of that stuff
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