Assembly Fluid #1 is an approved O-Ring lubricant, which means it can successfully be used in aircraft engines or other delicate assemblies. It is priced competitively, but volume discounts are also available making Ultrachem Inc. Assembly Fluid #1 the smart choice for commercial users. Need documentation for your business? The fluid may be shipped with a manufacturer's certification for a small additional fee. Ultrachem Assembly Fluid #1 is made in the U.S.A. for you can trust. Order now and enjoy quick shipping from恩莱保