byko-chart drawdown charts. Photo Courtesy of BYK-Gardner.
BYK-Gardner has a free byko-chart drawdown chart sample pack that is available for your offices, labs or facilities around the world. If you are interested in requesting these free drawdown charts, BYK-Gardner Laboratories Blog has included the form to request your byko-chart sample pack at the bottom of this post. More…
Drawdown of Paint.
Photo Courtesy of BYK-Gardner.
There is no set time period to use in determining when to replace a bar. The way the bar is used and the materials that the bar is used with will determine the frequency of replacement. The specific requirements of the final drawdown are also key in determining the useful life of the bar. More…
Drawdown of Paint.
Photo Courtesy of BYK-Gardner.
Opacity is an important property of architectural paint. One coat hiding reduces labor costs of a paint job and is a competitive edge in promoting paints to professionals. More…
Paint produced by the architectural paint industry must perform on a wide range of substrates. Some examples are previously coated wallboard, from glossy to flat, wood trim, plaster, uncoated wallboard, stucco, etc. The porosity of these substrates varies greatly, yet the paint must maintain the same color and gloss appearance no matter the substrate.
When we evaluate paint, we ask, “how much paint must be applied to hide the substrate below it?” or “does this paint hide better than that paint?” Opacity is a paint’s ability to prevent the transmission of light in order to hide the substrate below it. Throughout the paint industry, the terms hiding, opacity and contrast ratio have frequently been used interchangeably. Hiding is a general term used to describe all of these concepts, including hiding power. However, hiding power also takes into account the spreading rate of paint and will not be discussed here. (More information on hiding power can be found in ASTM D 2805.) More…
