遮盖率测试卡纸
遮盖率测试卡纸用于测定涂料的遮盖力，将涂料按要求厚度涂于测试卡纸上，待涂膜干燥后用反射率测定仪测量在黑白背景上的反射值，二者的比值越大，则遮盖力越强。
主要技术参数：
1.黑色反射值：<1
2.白色反射值：80±2
3.外形尺寸：250mm×140mm

Hiding Power Chart
Hiding Power Chart is used to determine the hiding power of coatings. The coatings are coated on the Hiding Power Chart according to the requirement. After the coating film dried, it can be used to determine the reflection value of the black background by reflectometer. The bigger ratio of two reflection values, the more the strength of the hiding power is.
Main Technical Parameters
1.Black Color Reflection Value: <1
2.White Color Reflection Value: 80±2
3.Overall Dimensions: 250mm×140mm