A national distributor of painted metal roofs encountered peeling paint on several residential and public buildings. The roof coating had a 20 year warranty against peeling provided by the paint supplier, but the paint supplier failed to honor the warranty, citing a defect in the painting process rather than faulty paint. Consequently, this would have resulted in multiple law suits and multimillion dollar claims against our client.
As a paint consultant, Chemical Dynamics inspected multiple sites where peeling paint was evidenced, samples were taken and roof coating analysis and testing completed.
Chemical Dynamics was able to show that the failures were caused from faulty paint formulations that when exposed to the elements resulted in soft coatings that failed adhesion. Accordingly, our client was able shift the responsibility to the paint supplier to pay the claims.
A century old government building, constructed of concrete, was in need of painting. Upon removal of the old paint, a reoccur-able, unpaintable powder continued to resurface on the building. The client had explored this issue with many paint companies and other paint consultants, but none of them could not explain the phenomena.
On short notice, Chemical Dynamics performed an onsite inspection and collected representative samples of the residue. The team performed a paint and coating failure analysis of the soluble components of the residue.
Chemical Dynamics was able to demonstrate that the powder residue is a result of secondary efflorescence of the concrete. Secondary efflorescence is the result of concrete degradation and the migration of water soluble salts to the surface of the concrete. With the proper diagnoses of the problem, Chemical Dynamics was able to recommend corrective action.