About each product/service About Humidity Control Sheet Condensation Prevention Sheet Humidity control sheet to prevent condensation Frequently Asked Questions ... About super hydrophobic coating HIREC FAQs about super hydrophobic coating HIREC... About powder coating Rust Preventive Powder Coating FAQs about powder coating Rust Preventive Powder Coating... Optical Adhesives Optical Adhesives FAQs... SDS Safety Data Sheet We provide Safety Data Sheets (SDS) to ensure the safe handling of our products. Optical connector cleaning tools, optical adhesives, super hydrophobic coating HIREC@, etc. List of discontinued products and services List of discontinued products and services We would like to inform you that we have finished sales and services for the following products that you have been using regularly. About product inquiries I get a certificate error Depending on your environment, you may receive the message "There is a problem with this website's security certificate." when you use the form to make an inquiry.