(800) 473-4237 / 508-992-6464 sales@focenter.com


Is AL-6261 the same as OKP4?



Yes.  We re-label the OKP materials under the AngstromLink (AL) label, where the last two digits of the product name indicate the refractive index:


If you get a 25kg bag of any OKP product it will arrive in the original Osaka Gas packaging and you will see the original Japanese labeling on the bag.  If you purchase a 5kg bag it will arrive in a sealed metalized bag (which I repackage myself for quality control purposes) and you will have to trust us.  In this case we are happy to provide the original Osaka Gas lot number on the COC.

SM6AskFOCIconAnswered by AskFOC Technical Team July 13, 2015


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Kathleen Skelton

About Kathleen Skelton

Kathleen Skelton, Director of Strategic Marketing's experience includes management positions at Lightwave, KMI Research, PennWell Publishing, Beacon Communications, and Security Innovations, Inc. As a strategic marketing director, she utilizes her expertise in business development, online strategy, marketing planning, digital best practices, standard operating procedures development, and database design, management and training. Kathleen has global business and marketing experience. Outside of FOC, Kathleen is passionate about her volunteer work for several organizations and works with youth groups teaching business strategy for various community projects. In her volunteer work, Kathleen is committed to developing tomorrow's leaders through exciting, strategy-focused business education. This mission guides all of her work outside of the corporate office. Kathleen graduated from Curry College with a BA in Communications and Education and minors in English and Psychology. Kathleen resides outside of Boston, MA with her husband and four children. Follow @KATHLEENSKELTON