The Universal Selection Source:
Coatings Ingredients

Biocide Optimization: Blends of Actives

SpecialChem / Sep 29, 2004

Over eighty percent of architectural paints are waterborne.1 The presence of water makes these paints very susceptible to microbial attack both in the wet state and as dry film. The addition of an in-can preservative will protect these coatings in the wet state during storage and transport. But after a coating has been applied and dried, it becomes susceptible to colonization by fungi and/or algae. The addition of a dry-film preservative (fungicide and/or algaecide) ensures long-term performance of the coating. Currently, there is no single biocide that possesses all the properties of an ideal biocide. However, blends of bio-actives may be used to optimize performance and approach the efficacy of the "ideal" biocide. Biocides are important to prevent the microbial deterioration of many coatings. The two main applications of biocides are: (a) to prevent spoilage of the wet-state product during storage and transportation (in-can protection); and (b) to ensure long-term performance of the coating (dry-film protection).

Be the first to comment on "Biocide Optimization: Blends of Actives"

Leave a comment

Your email address and name will not be published submitting a comment or rating implies your acceptance to SpecialChem Terms & Conditions
Improve the durability of PU coatings
2018 Polyurethanes Technical Conference
Channel Alerts

Receive weekly digests on hot topics

Back to Top