Professional Painting Contractor

Spring 2011

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ASK YOUR PROPARTNER Behind the new ceiling paint formula, and when you should not use bleach Here is a question for Rick, who once was a manager at the Frank- fort, Ind. store where I buy my paint. Why did you discontinue Clas- sic 99 Ceiling Paint and replace it with Brilliance? –John E. John, thank you for the ques- Rick Watson, Product Information The Sherwin- Williams Company tion. Wow, that was a few years ago, yet I still have fond memories for the time I spent in Frankfort. Brilliance was developed to satisfy the demand for a premium ceiling paint and is specially formu- lated to offer contractors a prod- uct with a true-flat finish, one coat coverage, and fewer than 50 g/L of VOCs. Our customers have asked for a high performance ceiling paint that was not purple or gray. How- ever, another feature of Brilliance is that it may be tinted to light pastel shades, for those that would like to use color on their ceilings. The store has the formula in their tint machines to make the old C-99 Ceiling Paint color for those who liked that shade of gray. These are some of the main reasons why C-99 Ceiling Paint has been dis- continued. I read on the Sherwin- Williams website that you do not recom- mend using bleach on porous material or metal. We use bleach on Morton type build- ings to remove the mildew and then rinse off with water. Are we making a mistake? If so, what should we use? –Joe T. Porous surfaces can trap bleach and cause premature paint failure. If bleach is not rinsed off and out of the pores it could also chemi- cally react with the substrate caus- ing damage to that surface. With a pH of 12 to 12.6, bleach (also called sodium hypochlorite) is cor- rosive, and when applied to metal it will react. Bleach also is referred to as an oxidizing agent, which if left on metal will cause it to oxidize or corrode. In regards to Morton® Buildings, my suggestion would be to contact them directly for their surface prep and procedure specifications. PPC Got a paint question? Email yours to: More paint FAQs answered at www.sherwin- 30 PPC Spring 2011

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