Opacity Charts: Used to test the hiding power of the coating, using large black and white areas.
The term "Opacity Chart" refers to charts on which the test pattern is a simple combination of black and white areas, large enough for wide aperture reflectance instruments, as well as for visual opacity and colour observations.

Penopac Charts: Combine penetration and opacity tests in one chart
These combine the test areas and functions of a PENetration and an OPACity chart. They can be considered as universal test charts for research, development and quality control. The choices offered in size and design are responsive to individual laboratory needs and preferences. Form 19BR includes an un-lacquered black area, but is otherwise equivalent in functionality.

Display Charts: Use diagonal patterns to help demonstrate visibly, the hiding power of a coating
These charts employ time-tested diagonally striped patterns, having a strong visual impact that emphasizes variations in film opacity. They are therefore frequently used for hiding power display purposes, by means of drawdowns or brushouts. Gray stripes in Forms 8H-GW and 8K-GW provide reduced substrate contrast for use with low hiding power coatings. Spreading Rate Charts (Forms 8H and 8H-GW) are accurately 0.1 square meters (approximately one square foot) in area, and are used in brushout hiding tests at specified spreading rates as described in ASTM Method D 344.

Opacity-Display Charts: Combines large black and white areas with diagonal patterns
Charts of this type combine the large, unbroken areas that are characteristic of Opacity Charts, with the striped design of a Display Chart. The larger areas permit wide aperture photometric measurements and visual colour comparisons, while the striped area is uniquely effective for hiding power comparison and display. Spreading Rate Charts (Forms12H and 13H) are accurately 0.1 square meters (approximately one square foot) in area, and are designed for brushout application at specified spreading rates.

Spreading Rate Charts: Larger than other charts, used to measure the spreading rate of a coating
One of the earliest hiding power test surfaces was linoleum with a black and white checkerboard pattern. This was soon replaced by sealed paperboard charts of which Forms 10H and 10H-BG Spreading Rate Charts are typical examples. Designed for brushout tests at specified spreading rates such as in ASTM Method D 344 and Canadian1-GP-71, they are also used for drawdown applications like their smaller counterparts Forms 10A and 10B. Black and grey squares in Form 10H-BG provide reduced contrast for testing coatings with lower hiding power.

Brushout Cards: Thicker paper is used for the testing of coatings applied with a brush or roller
Designed for informal brushout applications, the paper stock is almost twice the thickness of regular chart paper to give greater rigidity for more convenient handling - nominal thickness: 0.5 mm (20 mils). Brushout Cards are also used widely for drawdowns and colourimetric measurements.

Duplex Applicator Charts: Used in conjunction with the Duplex Film Applicator to test two coatings at the same time
Originally made to be used with the Duplex Film Applicator, an instrument designed for rapid production of side-by-side drawdowns, they now serve mostly as generic paint test charts.

Plain Black & White Cards: Supplied with a convenient hole at the top - for filing purposes - these plain cards are available in a range of sizes. Available in varying thicknesses and size. The Leneta WBX, WDX, WA, and WB cards all come with a convenient hole at the top.

Unvarnished Charts: Semi-porous charts which are ideal for clear coatings and stains. Unvarnished Test Charts are ideal for testing applications of clear coatings and stains. The unvarnished (semi-porous) surface simulates wood or unsealed wallboard.

Grey Scale Charts: A range of stripes, increasing in contrast – ideal for rating the hiding power of a coating.
These are sealed paint test charts with six stripes on a white field, ranging in shade from very light grey to black. The stripes are numbered 1 to 6, representing uniform steps of increasing contrast. The hiding power of the applied coatings is rated as the number of the darkest stripe that is completely (or almost completely) obscured, at a specified thickness or spreading rate. Form CU-1 is used for more practical large-area brush or roller applications as in ASTM D 5150. Applications on Form 24B are with a drawdown blade.

Spray Strips: Used by industrial coatings laboratories - primarily in the automotive sector, these spray strips are used to determine the hiding power of spraying enamels. The chart is attached to a steel panel and the test coating sprayed to produce a "wedge" varying from thin at one end to thick at the other. Available in Black/ White, Grey/ White and, for the S71, Red/Grey

Spray Monitors: Self-adhesive charts, usually applied to metal panels for testing sprayed and OEM coatings
These are pressure sensitive labels with a hiding power test pattern and a sealed, solvent-resistant surface. They are used primarily with metal panels on which the uniform surface provides no visual clue as to the thickness of an applied paint film.

Scrub Test Panels: Used to measure the abrasion of a coating, using the Elcometer 1720 Washability Tester
In a typical scrub test, the coating is applied to the Leneta Scrub Test Panel at a specified film thickness, allowed to dry, then subjected to scrubbing with a straight-line scrub tester.

Metopac™ Test Panels: Painted steel panels used to measure the hiding power of powder coatings
Painted steel panels, used for measuring the hiding power of powder coatings and industrial enamels. Available in half black / half white and all black.
The black surface: Solvent resistant, Non-bleeding, Reflectance - 1% maximum - measured using ASTM Method E 1347
White Surface: Solvent Resistant, Color Retentive, Reflectance - 80% minimum - measured using ASTM Method E 1347