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COLORANTS

The intention is to make ordering
colors quicker and more efficient,

opening up sales opportunities
and improving customer service.

aqueous, binder-free pigment preparations, which is
manufactured without using alkyl phenol ethoxylated
(APEO) additives. These multipurpose pigment prepara-
tions, Clariant states, are compatible with water-based
and solvent-based decorative coatings, especially low-
VOC decorative coatings.
They are also compatible with some other binder
systems, such as water-based or solvent-based industrial
paints, but the maximum dosage level and compatibility of
the binder-free VOC standards and regulations vary by the
location where it is supplied.
“Product-specific VOC information is available to customers
upon request,” Clariant points out. “It is the responsibility of
the coatings manufacturer to determine standard compliance
and appropriate claim for their products.”
Hostatint 500 must be checked in the customer paint
system itself. Clariant says, however, that by using 500 pig-
ment preparations in automatic and/or manual dispensers,
excellent accuracy and reliability when poured or pumped
have been observed.
“Furthermore, Hostatint 500 pigment preparations are
miscible in all proportions with each other. By adding Ho-
statint Extender MS 500 or Hostatint Extender CC 500, the
color strength of Hostatint 500 can be adjusted.”
Sherwin-Williams has, like most colorant suppliers, been
focusing on reducing VOCs in its product line. The com-
pany points out that often, even if paints were formulated
to have zero VOCs, blenders might add them to bring their
paints to the desired hues.
The company’s ColorCast Ecotoner system will not add
to the VOC content of any paint when tinted. This technol-
ogy is in all Sherwin-Williams’ own stores which means
the entire line of its water-based paints and colors are
tinted with colorants.
The company says this system maintains a paint’s vis-
cosity after tinting, and is available for any hue in its color
palette, as well as for custom color matches. It can be used
to tint all Sherwin-Williams latex and water-based coatings.
Achieving and maintaining color consistency has be-
come easier with these different technologies coming
onto the market. Genuine expertise, which comes from
experience in the field, is still an essential factor in any
successful formulation.
But anyone in the industry knows that the job is steadily
becoming easier. There’s every indication this will continue
into the future. n

36 Canadian Finishing & Coatings ManuFaCturing septeMber/oCtober 2020