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Drawdown Charts

SKU: CB-12700
Manufacturer: MIZA
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Overview of Drawdown Charts

Imbotec offers a wide range of drawdown cards and charts for virtually any application and coating material. Strict quality control during the production process assures that they have the most consistent color and gloss in the industry. Test charts are easy to use and an economical substrate to test a variety of coating properties, such as opacity, spreading rate, flow and leveling behavior. They are used for testing architectural, industrial, automotive, wood finishes or even cosmetic products(e.g. nail polish. Depending on the material properties of the product to be tested and its usage different types of drawdown cards are available.

The selection of test charts dependent on the coating technology being tested.   

Depending on the types of solvent used in paint formulations, a drawdown chart needs to be more or less solvent resistant. The resin type requires different solvent types and dependent on the polarity of the solvent, the organic ingredients will be more or less activated. Therefore, Imbotec offers two types of drawdown cards and charts.

Clear-coated Charts:

  • Are ideal for a wide range of coating systems: water and solvent borne technologies
  • Guaranteed non-fluorescent paper in compliance with ASTM D 344
  • Repeatable color and gloss, lot after lot
  • Superior adhesion characteristics, especially with latex paints
  • Rugged design (0.5 mm thick)to prevent warping and bending after the coating is applied.
  • Shrink-wrapped with low permeability plastic to prevent moisture absorption during shipping and storage.
  • Lot number is printed on every chart

Film Laminated Charts:

  • With excellent solvent resistance
  • Repeatable color and gloss-lot after lot
  • Smooth, structure-free surface
  • Superior adhesion properties and flexibility
  • Caliper 0.5 mm thickness
  • Double film laminated will not warp and bend-even in high humidity environments.
  • Selection of test charts dependent on application

Opacity Charts:

Comprised of a simple combination of black and white areas. The reflectance of black area<1;reflectance of white area is:80±2

With the lot number printed on every chart

Order information

Description

Material

Dimensions

Qty/Box

CB-12700

Opacity charts

Film Laminated

6x4inches

(150×100mm)

1,000

CB-12701

Opacity charts

Film Laminated

10x6inches

(250×140mm)

500

CB-12702

Opacity charts

Film Laminated

11x7.6inches

(289×194mm)

500

CB-12703

Opacity charts

Clear-coated

6x4inches

(150×100mm)

1,000

CB-12704

Opacity charts 2A

Clear-coated

10x5.5inches

(250×140mm)

500

CB-12705

Opacity charts

Clear-coated

11.3x7.6inches

(289×194mm)

500

CB-12706

Opacity charts 3B

Clear-coated

11.3x7.6inches

(289×194mm)

500

 

Opacity Measurement

Essential criteria for architectural paint are hiding power and yield.

In other words:

  • How many layers are necessary for complete coverage?
  • How much paint will be needed?
  • Opacity(%)= Y black×100(%)/Y white

100% opacity means complete hiding, no difference can be seen between the drawdown over black and white.

Procedure

A uniform paint film is applied to a black/white contrast chart. After air drying, the drawdown can be objectively evaluated using an opacity meter. The operator is guided through the measurement procedure and the opacity value is displayed automatically in second.

The same procedure can be applied to transparent films and plastics.

 

CheckerboardCharts/Spreading Rate Charts

Large size drawdown charts, referred to as display or spreading rate charts, were designed for visual evaluation of hiding power. The diagonal striped patterns or the checkerboard respectively have a strong visual impact and emphasize variations in film opacity.

In order to calculate the spreading rate ASTM D 344 uses Forms 8H and 10H. In this test the paint is spread uniformly on a defined test area(0.1square meters~1 square foot)and the spreading rate is calculated from the weight and density of the applied coating.

Ordering Information

Order information

Description

Material

Dimensions

Qty/Box

CB-12720

Opacity-Display Charts

Film Laminated

10x6inches

(250×140mm)

500

CB-12721

Display Spreading Charts

Film Laminated

289×194mm

(11.3x7.6inches)

500

CB-12722

Opacity-Display Charts 9A

Clear-coated

10x6inches

(250×140mm)

500

CB-12723

Display Spreading Charts 8B

Clear-coated

289×194mm

(11.3x7.6inches)

500

CB-12730

Opacity-Display Spreading Rate 14H

Clear-coated

17x11inches

(438×286mm)

250

CB-12740

Checkerboard Spreading Rate

Film Laminated

10x4inches

(250×100mm)

1000

CB-12741

Checkerboard Spreading Rate

Film Laminated

10x6inches

(250×140mm)

500

CB-12742

Checkerboard Spreading Rate

Clear-coated

10x6inches

(250×140mm)

500

 

Sag and leveling Test Charts

These drawdown charts are designed for use with our sagging tester and with our leveling tester.

The extra large black area allows measurements to be made over the black area only, in accordance with specifications that require the operator to ignore the leading and trailing edges of the drawdown.

 

Ordering information: CB-12710 Sag and leveling Test Charts (289×194mm500 pcs/box)

 

 

Prices vary from chart to chart, give us a call and we will be happy to help select the right chart for your project.

 
 
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