Okitsumo Vanishing Lines Red Set of 12 for Matching Marks Super Weather Resistant Industrial Use Inspection Visual Confirmation

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Contents: 8.7cc Drawing width: 1.0~2.0mm Writing distance: approx. 500-600m How to use: 1. Shake with the cap on until the ball inside moves well. 2.Press the pen tip down 2-3 times. 3. Once the ink has penetrated to the pen tip, please test write thoroughly.　 Note: The ink contains flammable organic solvents, so please do not use it near fire. Don't overlook loose bolts! ``Disappearing line'' is a marker that has excellent weather resistance, does not fade even outdoors, and has little discoloration. Ideal for use as a match mark to visually check for loose bolts. [Feature 1] It has excellent weather resistance, and your drawn lines and letters will not fade. Lines can be recognized even after accelerated weathering tests equivalent to 5 years of outdoor exposure. The lines do not disappear even after an accelerated weathering test equivalent to 5 years of outdoor exposure. Whether it's a regular inspection every year or five years later, the matching marks remain firmly on the bolts, making it easy to see if the bolts are loose. [Feature 2] The color difference after accelerated weathering test equivalent to 5 years of outdoor exposure is ΔE 7.3. If ΔE exceeds 10, the marker will be significantly discolored and difficult to see. The vanishing line has a ΔE of 7.3 even after 5 years of outdoor exposure, so there is almost no change in color. ・“Zerimasen” has been registered in NETIS □Registration number: CB-220008-VE □Registration date: May 18, 2022 *What is NETIS? NETIS is a database for sharing and providing new technologies developed by private companies, and is operated by the Ministry of Land, Infrastructure, Transport and Tourism. It is also a system for actively utilizing new technologies developed by private companies in public construction.