A method of making a fluoropolymer dispersion by first providing a
fluoropolymer dispersion comprising fluoropolymer particles and one or
more fluorinated surfactants selected from fluorinated carboxylic acids
or salts thereof having the general formula:
[R.sub.f--O-L-COO.sup.-].sub.iX.sup.i+ (I) wherein L represents a
linear partially or fully fluorinated alkylene group or an aliphatic
hydrocarbon group, R.sub.f represents a linear partially or fully
fluorinated aliphatic group or a linear partially or fully fluorinated
aliphatic group interrupted with one or more oxygen atoms, X.sup.i+
represents a cation having the valence i and i is 1, 2 or 3; then adding
one or more non-fluorinated surfactants selected from anionic and
non-ionic surfactants followed by reducing the total amount of the one or
more fluorinated surfactants to an amount of not more than 500 ppm, for
example not more than 250 ppm based on the total weight of the dispersion
while maintaining or increasing the amount of solids in the dispersion.