HardHat is a high quality liquid Cobalt additive. HardHat will deliver a quick surface set and faster thorough drying when used with standard drier enhanced inks. For non-drier enhanced inks we recommend OxiDrize. Use when offsetting is a potential problem . With black inks we recommend HardHat in quantities of 2-3% by weight and 1-2% by weight for colors.
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