ZGL opacity test cardboard series provides various types of test sheets, from pure white to various black and white patterns. Made of high-quality non-fluorescent paper without optical brighteners that interfere with color testing. Test coupons are the market standard product in the coatings industry today. The earlier hiding power test base was oil cloth composed of black and white checkered pattern. It was soon replaced by sealed cardboard sheets, black and white paper and black and white grid paper are typical representatives. Spread Rate Test Plates have an exact area of 0.1 square meter (approximately 1 square foot) and are suitable for brush application at the specified spread rate.
Used for hiding test of coatings, varnishes, inks or quick proofing of other coatings.
The reflectance of the black part of Pushen cardboard is <1, and the reflectance of the white part is 80±2.
Uncoated cardboard has good wettability to the coating material and will not crack or shrink.
Laminated cardboard has a smoother surface and greater resistance to curling during baking
order number | style | lamination | size | Package |
PS 2930/1 | top black and bottom white | no | 100×152mm | 100 sheets/pack |
PS 2930/2 | Top white and bottom black | yes | 142×250mm | 100 sheets/pack |
PS 2930/3 | top black and bottom white | yes | 187×265mm | 100 sheets/pack |
PS 2930/4 | Black and white grid | yes | 100×246mm | 100 sheets/pack |
PS 2930/5 | small twill | yes | 145×262mm | 100 sheets/pack |
PS 2930/6 | large twill | yes | 195×286mm | 100 sheets/pack |
PS 2930/7 | noob | no | 100×152mm | 100 sheets/pack |
PS 2930/8 | Chinese white | yes | 142×250mm | 100 sheets/pack |
PS 2930/9 | great white | yes | 187×265mm | 100 sheets/pack |