Ultra-fine point pen is designed for permanent writing in tiny spaces or other challenging surfaces. Writes on diamonds, glass, wood, cellophane, plastic and glossy sheets, CDs, photographic and x-ray film, paper and metal. Ideal for making precise long-lasting marks on test tubes, circuit boards, diamonds, or wherever you need waterproof ink that will write on nonporous surfaces. Diamond cutters can use Microperm Ultra-Fine Point Pen to make minute markings on rough diamonds to ensure exact cuts. Protected tip will not split. Permanent ink is chemically stable, waterproof and low-odor. Alcohol-based cleaners will remove ink from nonporous surfaces. Microperm pen meets ACMI nontoxicity standards. Not recommended for use on fabrics intended to be washed. Not evaluated for cosmetic use on skin.
References
^ (2020). Microperm Pen,Waterproof,Low Odor,.45mm Tip,Black, Sakura of America. UPC 084511366558 (revised Feb 2023)
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