Hernon Manufacturing has received independent lab verification from Intertek Automotive Research, a certified accredited lab, that its Dripstop 940 pipe thread sealant is free of the containments listed in ISO-22241, which are the same containments also restricted for presence in diesel exhaust fluid (DEF) applications.
In 2010, stricter EPA standards were set in place and enforcement began requiring all new diesel engines built to switch to DEF technology to help neutralize nitrogen oxide (Nox) emissions. When DEF is injected into the engine exhaust gas, it is rapidly hydrolyzed, producing the oxidizing ammonia needed by the SCR catalyst to complete Nox emissions reductions.
Typically, in DEF bulk transport and transfer equipment, stainless steel fittings are used. Dripstop 940 is specially formulated to work with stainless steel and now shows compatibility with DEF.
Hernon customers in the petroleum bulk transfer industry had requested a validated DEF-compatible thread sealant. In response, the firm submitted samples of its Dripstop 940 anaerobic pipe sealant to Intertek. The purpose of the test was to confirm that Dripstop 940 was containment-free to ISO-22241 standards and therefore compatible for DEF technology. The product received the necessary approvals and exhibited 100% passing results for the requirements stated in the ISO-22241.
Dripstop 940 is a general-purpose anaerobic pipe sealant. It has superior sealing, and has been specially formulated to be used with stainless steel pipe fittings and mild locking performance compared with tapes and non-hardening dopes. Dripstop 940 reduces costs by eliminating leakage and increasing the assembly line speed.
For more information, visit www.hernon.com. To receive a copy of the test results of Dripstop 940's diesel exhaust fluid compatibility, call 407-322-4000.