The additives market is increasingly important for ink manufacturers. Formulators count on waxes, defoamers, surfactants, dispersants and other key ingredients to make their inks perform at their best on press. Additives are a sizable market. Kusumgar, Nerlfi & Growney is beginning its Global Coating & Ink Additives, 2017-2022 study, and the firm estimates that worldwide consumption of the major additives in inks and coatings was 2.7 billion pounds, worth more than $5 billion in 2017. Kusumgar, Nerlfi & Growney breaks down the usage of the additives by volume at 92% for coatings and 8% for inks. According to Kusumgar, Nerlfi & Growney, rheology modifiers, including inorganic, synthetic and cellulose varieties, are the leading additive type with 38% of the volume and 36% of the dollar value. Dispersants make up 20% of volume and 18% of value, followed by foam control additives (17% of volume), slip/rub materials (12% of volume) and wetting agents (also 12% of vo