If you manufacture, sell, or distribute water treatment or distribution products in North America, your products are required to comply with NSF/ANSI Standard 61: Drinking Water System Components – Health Effects by most governmental agencies that regulate drinking water supplies. Developed by a team of scientists, industry experts, and key industry stakeholders, NSF/ANSI 61 sets health effects criteria for many water system components including:
NCS also offers two compounds that are EPDM 70 durometer and are both NSF 51 and 61 certified, as well as EN 681-1, DVGW W534, KIWA, CLP, WRAS, UBA, DVGW-W270 E and in compliance with FDA (177.2600-21).
Certification to NSF/ANSI Standard 61 ensures that your product meets the regulatory requirements for the U.S. and Canada, and it can often meet or fulfill the testing requirements for many other countries as well. Market leaders strive to attain NSF certification as a mark of distinction that provides their customers with assurance that their product is safe for use in drinking water.
NSF/ANSI 61 testing covers all products with drinking water contact from source to tap and determines what contaminants may migrate or leach from your product into drinking water. It also confirms if they are below the maximum levels allowed to be considered safe.
NCS offers a full range of NSF/ANSI 61 certified O-rings, seals, gaskets, and custom molded rubber products for all potable water applications. We have a variety of compounds available in various products and sizes. NSF certification is your key to making sure that the products you use meet strict standards for public health protection.
NSF 61 applies to any material or component that contacts drinking water. That includes protective barrier materials (cements, paints, coatings), joining and sealing materials (gaskets, adhesives, lubricants), mechanical devices (water meters, valves, filters), pipes and related products, plumbing devices (faucets, drinking fountains), and process media (filter media, ion exchange resins). See our potable water sealing applications page for typical use cases.
North Coast Seal supplies NSF 61 certified compounds across three material families: EPDM (50 to 90 durometer, with variants for peroxide cure, chloramine resistance, low compression set, and international standards), NBR (50 to 80 durometer), and silicone (40 to 80 durometer). Specialized variants are available for specific temperature, tear strength, or cure system requirements.
Yes. North Coast Seal offers two EPDM 70 durometer compounds certified to both NSF 51 (food equipment) and NSF 61 (drinking water). These dual-certified compounds also meet EN 681-1, DVGW W534, KIWA, CLP, WRAS, UBA, and DVGW-W270 E, along with FDA 21 CFR 177.2600. See our NSF 51 and 61 dual certification page for full details.
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