Scott A. Brown, Technical Manager, Global TS MPP, Lonza Inc., Alpharetta, GA03.17.17
Introduction
Increasing regulatory requirements have put pressure on biocide manufacturers and have slowed the pace of new preservative introduction. The emerging challenge for formulators of water-based coatings is that fewer preservatives are available, and many of those that remain contain biocidal active substances which attract hazard communication phrases if present above a threshold trigger level. This is particularly true for European coating formulators. Against this backdrop we have formulation trends in the coatings industry, such as the removal of co-solvents, which have resulted in coatings with an increased susceptibility to in-can spoilage. These formulation changes have created an upward trend on the preservative concentrations required for robust preservation. The paint industry is facing an intensifying clash between the formulation-driven trend toward higher preservative concentrations, and the regulatory driven trend toward lower preservative concentration trigger thresholds for hazard communication. Given the headwinds impacting the historically popular in-can pres
Increasing regulatory requirements have put pressure on biocide manufacturers and have slowed the pace of new preservative introduction. The emerging challenge for formulators of water-based coatings is that fewer preservatives are available, and many of those that remain contain biocidal active substances which attract hazard communication phrases if present above a threshold trigger level. This is particularly true for European coating formulators. Against this backdrop we have formulation trends in the coatings industry, such as the removal of co-solvents, which have resulted in coatings with an increased susceptibility to in-can spoilage. These formulation changes have created an upward trend on the preservative concentrations required for robust preservation. The paint industry is facing an intensifying clash between the formulation-driven trend toward higher preservative concentrations, and the regulatory driven trend toward lower preservative concentration trigger thresholds for hazard communication. Given the headwinds impacting the historically popular in-can pres
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