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Black-and-white grid paper (half black, half white; black and white; twill)

The opacity‑determination cardstock (black-and-white paper) is manufactured in accordance with GB/T 1726‑89 and is primarily used to assess the opacity of coatings. The coating is applied to the test cardstock at the specified thickness; after the coating film has dried, a reflectance meter is used to measure the reflectance values against black and white backgrounds. The higher the ratio of these two values, the greater the opacity.

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Paint, Coating Film, and Coating Testing Instruments

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lbt@lbt.ltd

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Black-and-white grid paper (half black, half white; black and white; twill)

Description

Product Introduction

It is primarily used to determine the hiding power of coatings. The coating is applied to a test card at the specified thickness; after the coating film has dried, a reflectance meter is used to measure the reflectance values against black and white backgrounds. The higher the ratio of these two values, the greater the hiding power.

Technical Specifications:

1. Black reflectance: く1

2. White reflectance: 80 ± 2

3. 1# Twill Paper

External dimensions: 260 mm x 145 mm

Packaging: 100 sheets per pack

Weight: 1.2 kg

4. 2# Half-black, half-white paper

External dimensions: 250 mm x 140 mm

Packaging: 100 sheets per pack

Weight: 1.2 kg

5. 3# Black-and-White Grid Paper

External dimensions: 250 mm x 100 mm

Packaging: 100 sheets per pack

Weight: 1 kg

6. 4# Small half-black, half-white paper

External dimensions: 150 mm x 100 mm

Packaging: 100 sheets per pack

Weight: 0.5 kg

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Black-and-white grid paper (half black, half white; black and white; twill)

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