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. 




One possibility that may work is to use an aqueous suspension of PTFE particles.
This is a common technique for dip-, spray-, and spin-coating all kinds of substrates.
There are a number of commercially available products containing PTFE particles stabilized by nonionic surfactants in water, such as this [one](https://chemours.com/Teflon_Industrial/en_US/products/product_by_name/teflon_ptfe/aqueous.html) from Chemours.


Another thing that may work depending on your application (namely, if your application requires only a thin film of a hydrophobic coating and not specifically PTFE particles), is the use of an amorphous fluoropolymer.
Most of these are copolymers of PTFE with a component that renders the polymer soluble in perfluorinated solvents (Cytop is a little different).
They are quite expensive, but can be used to make very uniform coatings again by dip, spray, spin and other coating methods with a polymer solution in a perfluorinated solvent, which is then removed by baking.
The big brands I am aware of are Chemours [Teflon AF](https://chemours.com/Teflon_Industrial/en_US/products/product_by_name/teflon_af/index.html), Cytonix [Fluoropel](http://fustf.wzhsp.servertrust.com/category-s/1844.htm), and AGC [Cytop](http://www.agcce.com/cytop/) 


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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](https://www.quora.com/Are-there-any-solvents-to-dissolve-teflon-or-PTFE) and, if I remember correctly (I could not find it on the web), in $\ce{Na}$ dissolved in liquid $\ce{NH3}$.


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