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What's New...
Although algae growth seems to be worse in warm, humid environments, it can grow anywhere. Being one of the earliest forms of plant life on the planet, the "critters" have adapted to every earthly condition this planet has dished out and have survived. It thrives in undisturbed areas, which fits the bill for the great percentage of some airfield pavements. Lesser used runways and taxiways, or just airfield markings that are seldom traversed, will support algae growth, sometimes to the point that the markings are almost totally obscured. (See picture in article "Highways vs. Runways") The biocide-treated paint was applied to a runway in eastern North Carolina (after serious waterblasting of the existing markings, I might add), along with a control section of untreated paint. Sightline will be monitoring the markings for the years it takes for the algae to grow back on the markings. We'll keep you posted. |
Recently, a new product has been tested to prevent
algae from growing on and obscuring airfield markings. Sightline will be monitoring the effects
of a "biocide-treated" waterborne (TT-P-1952D) paint. With the cooperation of Rohm & Haas of
Springhouse, PA, and Chuck Carneal of Safety Coatings in Foley, AL, a biocide that seems effective
in the laboratory has been added to the standard waterborne paint used on runway surfaces.
