Adhesive / mastic for sealing rubbers to plastic airbox

[AshimotoK0]

Just wondering if anyone knows of a decent product  for sealing the rubber inlets on plastic air boxes on 400/4, 500 four etc.
I was thinking maybe black silicone sealant but there may be a better fuel resisant flexible adhesive/mastic.

[Nurse Julie]

Him indoors used this lovely black stuff for that sort of thing Ash.

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[Trigger]

Bostik or heat resistant contact adhesive Ash 

[mike the bike]

I use "Sticks like sh*t" .  It adheres better than silicon.