SpeedBlock DP74 is a fluorescent whitening agent, with excellent stability in low pH systems, for use in ink and coating applications. SpeedBlock DP74 is used in warm white and pastel tones where the degree of whiteness of thepaint/ink needs intensifying. SpeedBlock 74 will mask the yellow self colour of some formulations and will increase the deep tone of blue/black inks. SpeedBlock 74 is recommended for use at concentrations between 0.02 - 5.0%. The actual use level chosen depends on the particular application and end user requirements.
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