Category Archives: Application

byko-drive XL – Automatic Film Applicator with the most flexible design to perform drawdowns of coating and inks Reply

by • Additives & Instruments, Application • Tags: ,

BYK-Gardner, a global leader in the field of measuring color and appearance and testing physical properties of plastic, coatings and cosmetics is introducing the bykodrive XL Automatic Film Applicator.

Dry film appearance is influenced by drawdown speed and pressure applied to drawdown applicator.  The byko-drive XL offers precise speed and pressure control to produce consist drawdown results.  Two models are available: one designed with a vacuum plate or another model with a glass plate.  The byko-drive XL is an international testing device with universal power supply, 8 selectable menu languages, measurement units in metric or English scale, and CE/UL/CSA certification.  More…

When Should I Replace My Applicator Bar? Reply

by • Additives & Instruments, Application • Tags: , ,
Drawdown of Paint. Photo Courtesy of BYK-Gardner.

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…

byko-chart Overview: A Wide Range of Drawdown Charts for a Variety of Applications 4

by • Additives & Instruments, Application
Drawdown of Paint. Photo Courtesy of BYK-Gardner.

Drawdown of Paint.
Photo Courtesy of BYK-Gardner.

byko-charts

BYK-Gardner offers a wide range of drawdown charts for a variety of applications.  Test charts are easy to use and are an inexpensive substrate to test various coating properties.  BYK-Gardner uses stringent quality control during the production process to ensure the most consistent chart properties for color and gloss in the industry.  Selection of the chart depends on the coating technology that needs to be tested, as well as, the coating properties that need to be evaluated.

More…

Display Drawdown Charts and Spreading Rate Drawdown Charts Explained 3

by • Additives & Instruments, Application, How to

When customers go to the store, they need to know how many gallons of paint to buy to cover the area they wish to paint.  They also want to know how many coats it takes to completely hide what they are painting over.  The spreading rate of a paint is how to determine how “far” a paint will go by quantifying how much area is covered for a given quantity of paint. Sometimes to compare paints, a researcher will use the same spreading rate for two different paints and then compare the hiding power visually using the background of the drawdown chart as a guide or instrumentally using a spectrophotometer.

More…

Penopac Drawdown Charts Explained 5

by • Additives & Instruments, Application, How to • Tags: , , , , , ,

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.

More…

Opacity Drawdown Charts Explained 8

by • Additives & Instruments, Application, How to • Tags: , , ,

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…