Wednesday, December 12, 2012

NSF Sealants for Drinking Water

Hernon Manufacturings Self Seeler grades 604, 615, 616, and 618 as well as Hernon's Porosity Sealant 990 (HPS 990), Dripstop 923 and Cylinlock 24232, 824, 843, 845, and 846 are now certified to ANSI/NSF Standard 61. This standard indicates that these products have been certified for usage on commercial and residential potable water system components up to 82°C (180°F).

Hernon's line of Self Seeler products are tough, pre-applied sealants for threaded pipe components. Self Seeler is non-hardening which means that it instantly seals but it can be adjusted and even removed and reinstalled up to 8 times without recoating the threads. Self Seeler is water-based and non-toxic, which allows for safe handling without special precautions. It can also prevent loosening due to vibration because of prevailing torque characteristics.

The pre-applied application of Self Seeler sealants means that the sealant can be applied to threaded components up to 4 years before use. This eliminates application on the assembly line, which can reduce concerns about installation and migration problems. Self Seeler also holds the advantage for field assembly because the parts are always properly coated and ready for installation. Self Seeler can be applied with semi-automatic or automatic applicators such the Hernon AutoCoater 3010.

Self Seeler grades 604, 615, 616, and 618 are also classified by Underwriters Laboratories Inc. for use with gasoline, petroleum oils, natural gas (up to 300 psig), propane, and butane. (Reference UL File Number MH14222)

Dripstop® 923 is specially formulated for use on tapered threads and provides a lower break-loose torque than Dripstop® 940. Tapered threads “cone” together, so Dripstop® 923 is formulated for easier dis-assembly. 923 delivers temperature integrity to 300°F continuous and intermittent exposures to 375°F are tolerated.

Hernon® Porosity Sealant 990 (HPS 990) is the solution to leak proofing of parts. HPS offers improved machinability and surface quality for painting and plating. The hardened resins exhibit superior chemical resistance and elevated temperature stability. HPS 990 is an anaerobic-cure polymer impregnation resin. HPS 990 cures once it reaches the inner porosity of metal components. HPS 990 is certified to ANSI/NSF Standard 61 for use in commercial and residential potable water systems not exceeding 82°C (180°F). This product was certified for a maximum surface area to volume ration of 50 sq. in./L. It was also certified for brass materials having no greater than 12% porosity.

Cylinlock Adhesives are high performance, single component, 100% active anaerobic retaining compound developed for bonding fitted cylindrical parts. Upon cure, Cylinlock forms a tough plastic bond that offers high strength, superior heat, and chemical resistance.

These certifications allow Hernon's formulations to be used in a wide-variety of applications.

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