Is your suction funnel too big to fit a collar? Or you cant find the
right size stopper? Our silicone putty product can close any size lab glassware air tight and water tight. Worried about toxic fumes? Apply it around bottle necks to avoid safety problems.
00-02 Silicone putty will make an airtight seal with filtration funnels. Can be used with vacuum filtration
collars, rubber stoppers or in place of them when the right size is not available. It is nonflammable. Useful between 0ºF
to 400 degrees ºF and it does not react with most concentrated acids, bases and solvents. Reusable. Pack of 12 plugs- $35.00