Clarity Watermark Fluid
Finally—a product designed specifically for the needs of stamp collectors. Clarity is a true innovation in the technology of expertising stamps, combining the clearest possible watermark images with safety for the stamps and the collector.
Clarity is unlike any other. Most commercial "watermark fluids" are toxic, flammable, or contain hazardous materials that are only marginally safer than the traditional solvents (such as lighter fluid and benzene) they replaced.
Clarity is the only watermarking fluid that was developed under the guidance and with the cooperation of the American Philatelic Society. Clarity is non-flammable, non-toxic, and is completely safe for the environment.
Clarity is available in a 3.4 fluid ounce (100 ml) convenient flip-top bottle wherever philatelic supplies are sold.