What should you do when your protein stickes to Tygon and silicone tubes of Bio-Rad FPLC?
A general rule when talking about silicone rubber: Nothing sticks to silicone -- except silicone. As long as you have a silicone based adhesive, you should be able to stick anything the silicone. Warning: if you are using any type of silicone adhesive, it will bond to fabric permanently, so make sure you aren't wearing any nice clothes. Latex or nitrile gloves are also recommended when handling silicone adhesive.