Substrates
Opacity Charts

BIUGED INSTRUMENTS offers a wide range of drawdown cards and charts for virtually any application and coating material. Stringent equality 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, and flow& leveling behavior. They are used for testing architectural, industrial, automotive, wood finishes or even cosmetic productse.g. nail polish.Depending on the material properties of the product to be tested and its usage different types of drawdown cards are available.

 

Selection of test charts dependent on coating technology

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, BIUGED offers two types of drawdown cards and charts.

 

① 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 thicknessto prevent warping and bending after the coating is applied.

 Package is shrink-wrapped with low permeability plastic to prevent moisture absorption during shipping and storage.

 

② Film Laminated Charts

 With excellent solvent resistance

 Repeatable color and gloss-lot after lot

 Smooth, structure free surface

 Superior adhesion properties and flexibility

 With 0.5mm thickness

 Double film laminated will not warp and bend-even in high humidity environments.

Essential sales criteria for architectural paint are hiding power and yield. In other words:
---How many layers are necessary for complete coverage?       
---And how many cans 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 on a black/white contrast chart. After air drying the drawdown can be objectively evaluated using the BIUGED opacity meter. The operator is menu guided through the measurement procedure and the opacity value is displayed automatically in a second.

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

Opacity Charts

 Comprised of a simple combination of black and white areas. The reflectance of black area1reflectance of with area80±2

 With ample for reflectance measurement               

 With the lot number printed on every chart

Ordering 

       Information

Material

Dimensions

Qty/Box

BGD 1100

Film Laminated

150×100mm

1,000

BGD 1101

Film Laminated

250×140mm

500

BGD 1102

Film Laminated

289×194mm

500

BGD 1103

Clear-coated

150×100mm

1,000

BGD 1104

Clear-coated

250×140mm

500

BGD 1105

Clear-coated

289×194mm

500

BGD 1106

Clear-coated

289×194mm

500

 

Contact USMore

Biuged Precise Instruments (Guangzhou) Co.,Ltd

AddNO.15, Fuzhong Rd., Zhongxin Town, 

Zengcheng District, Guangzhou.China

Tel+86-20-32955999;+86-20-32955820

Fax+86-20-32955819 

E-mailjack@biuged.com

Website http://www.biuged.com 


Biuged Instruments Co.,Ltd.

Add:RM.310, NO.1, Sicheng Rd.,
Tianhe District, Guangzhou.China

Tel:+86-20-82169666

Fax:+86-20-32955818

E-mail:jack@biuged.com





Biuged Precise Instruments (Shanghai) Co.,Ltd

Add:Room 906, 9th Floor, Zhongcai Industrial Park, No.1111 Zhu Feng Road, Qingpu District, Shanghai, China

Tel:+86-21-59240298

Fax:+86-21-59249719

E-mail:xjx@biuged.com

  Biuged Laboratory Instruments (Guangzhou) Co., Ltd.   Guangdong ICP record number:11044672