1)More
reactive products like Manalox 130, 131, 230 and 360 should be diluted
30 to 50% in ink oil solvent prior to addition to the varnish. In
most cases, Manalox 300, 310, and 240, can be added directly to the
varnish without pre-diluting.
2)When
adding gellants to a batch, add slowly enough to mix without making
puddles on the surface of the varnish. Puddles of gellant provide
high local concentrations of aluminum which tend to cause seeds.
Slow addition into an area of high turbulence is ideal.
3)Cooking
times and temperatures vary according to preference, equipment limitations,
resins, etc. Manalox aluminum gellants thicken via a chemical reaction
with the resins in the varnish formula. As with most chemical reactions,
peak viscosity achievement depends upon a combination of time and
temperature. The higher the temperature, the less time it takes to
reach peak viscosity; and when time restrictions or lower temperature
requirements are an issue, the more reactive products (see above)
should be considered.
4)Many
Manalox gellants are alcohol free products that do
not produce a volatile alcohol as a byproduct of the reaction
with the resin.
5)When
Manalox is stored in open containers, its aluminum compounds react
with moisture very rapidly and can reduce the product's overall
effectiveness. Be sure all containers are tightly closed.
6)If
only a partial drum of Manalox gellant is needed for a given batch,
the bung should be replaced as soon as the required amount is
drawn out.
7) When
making a dilution, it is usually best to dilute entire drums and
save any excess solution in closed containers.