The Kerley Family of Web Book Blacks

50-50 Black

50-50 Book Black is a uniquely successful hybrid formulation derived from our Nova and Sigma Heatset Web Offset Blacks. As its name implies, 50-50 is an even mixture of the two inks. 50-50 offers you the best features of both inks combined into one. 50-50 has slip, scuff resistance, blue tone and tack similar to Nova, yet the smoothness, density, economy, and excellent drying ability of Sigma Black. 50-50 was formulated for use on offset stock, absorbent textbook stocks, forms stock, and newsprint stock where a semi-gloss ink excels in printability. On no heat presses, 50-50 can be used without heat assist because of its excellent setting properties, especially if you are planning on printing on an absorbent stock. Without heat, 50-50 will provide a non-marring finish within minutes similar to a quickset ink, but at a fraction of the cost. To improve your flexibility, 50-50 is available in a variety of tacks. Also, 50-50 "SB" is offered with a slightly gelled body, so that it can be handled in buckets as well. See the following chart for more information about 50-50 Book Black. Remember, all 50-50 Blacks are considered "Special Order" inks, so when you order, please be prepared to purchase as close to four drums as possible.

Tack (1 min at 1200 RPM)	Regular Body	Special Gelled Body	Economy Version
Tack 12	50-50 EF
Tack 10	50-50 Tack 10
Tack 8	50-50 Tack 8	50-50 Tack 8 SB
Tack 6		50-50 Tack 6 SB	50-50 NTB
Tack 5		50-50 Tack 5 SB

60-40 Black

The "60-40" line of inks is small, but packs a real value punch! Similar in design and purpose to 50-50 Black, 60-40 is trimmed down in features and also in cost. To simplify matters, 60-40 comes in only one tack range. 60-40 is sixty percent of our K-3 Heatset Base Black, and forty percent of our Sigma heatset black finished ink. The result: a stunningly dense, smooth printer for a cost not much more than offset newsink! Use 60-40 Black on offset stock, absorbent textbook stocks, supercal stock, newsprint, and forms stock. 60-40 is available in three variation sregular, low VOC (great for running no heat on low quality news stocks), and soy oil-based. Please see the chart below for more information about 60-40 Black.

Tack

(1 min at 1200 RPM)

Regular Version

Low VOC Version

Tack 6

60-40 NT

60-40 STAB

40-60 Black

Not to be confused with its near-twin mentioned above, 40-60 is a "lite" version of 60-40 Black. Made from forty percent K-3 Heatset Base Black and sixty percent of our Sigma heatset black finished ink, 40-60 black is somewhat lower in viscosity, which suits it well for uncoated papers that have some "holdout". 40-60's lighter body penetrates these harder stocks quite well, but still features excellent strength and great smoothness. Use 40-60 Black on offset stock, absorbent textbook stocks, supercal stock, newsprint, and forms stock. Just like 60-40 Black, 40-60 works equally well both with and without heat assist. 40-60 LVOC is great for running no heat on low quality news stocks. Please see the chart below for more information about 40-60 Black.

Tack

(1 min at 1200 RPM)

Regular Version

Low VOC Version

Tack 6

40-60 NTB

40-60 LVOC

30-70 Black

The last of our unique low-cost heatset/no heat book blacks, 30-70 Black is a low-tack, high viscosity ink very well suited for smaller web presses with more primitive inking systems. 30-70 Black has a short, viscous body made from seventy percent K-3 Heatset Base Black and thirty percent of Sigma heatset web finished ink. Common problems such as misting and water balance problems are generally overcome when using 30-70 Web Book Black. On older presses, where maintenance has not been optimal, 30-70 Black can help. Use 30-70 Black on offset stock, absorbent textbook stocks, supercal stock, newsprint, and forms stock. 30-70 STAB is great for running no heat on low quality news stocks. Please see the chart below for more information about 30-70 Black.