How do we turn PTFE powder into a paste we can dilute in a solvent We want to create a binder we can use in our filter elements that is PTFE based, so we need to somehow create a paste, we can thin down with a solvent that will still hold the PTFE in suspension, long enough to dip our virgin glass microfibre elements in and get an even distribution through the element structure.
So far we have tried a DMP and DIBK mix to make a paste, and then diluted in MEK but we cannot get the PTFE to remain in suspension long enough.
You might try making a solution, rather than suspension. PTFE is very resistant to most solvents, but can form a 3% solution in perfluorinated hydrocarbon solvents and, if I remember correctly (I could not find it on the web), in $\ce{Na}$ dissolved in liquid $\ce{NH3}$.