Soytab Extender C 40 is an economically-priced near zero-VOC extender vehicle intended for use as either a letdown varnish or as a transparent white in color mixing systems for newspaper and no heat web offset inks. Inks made with this extender will have a very "flat" finish when printed. Therefore, it is only recommended for printing on newsprint stocks. It is also our lest expensive extender in terms of direct cost per pound. Soytab Extender C-40 is used in the manufacture of soy oil-based web offset news inks. Soytab Extender FFG, as the name implies, is soy oil-based, containing approximately 25% soy oil. Soytab Extender C 40 is very thixotropic, due to the fact that there is nearly 40% clay in the formula. This thixotropy can be used to produce an ink that is very resistant to misting and dripping, yet under mild agitation will produce flow. Soytab Extender C-40 has 100 percent solids and is virtually VOC-free. It is used as an excellent letdown vehicle for making all kinds of no heat web news inks when combined with just about any type of flush.
The main difference with Soytab Extender C-40 in comparison to our standard "Soytab Extender" is that although it is a very "short" gel, it is lower in absolute viscosity and does not develop a viscous ink like standard Soytab Extender can. This is particularly advantageous if you are formulating for more lower cost inks on older, slower newspaper presses. For best performance, please avoid using any form of castor oil for water pickup control in process reds.
Packaging:
Soytab Extender C-40
SPECIFICATIONS:
Tack: 5.5 points @ 1200 RPM @ 90 F
Viscosity (Laray): 94 Poises/811 Dynes/sqCM Yield @ 25 C
Resin Type: Rosin-Modified Phenolic 155C MP
Solvent Percentage: 0% Solvent Boiling Range: N/A
Soy Oil Content: approx 25%