Type 6/6 nylon is widely used in applications requiring high strength, chemical resistance, and good electrical properties, making it the ideal material for the majority of Heyco's molded products. The 6/6 means that it is derived from 2 amide-forming ingredients, hexamethylene diamine and adipic acid, each of which contains six carbon atoms.
Standard 6/6 nylon meets UL 94V-2 flammability requirements and is resistant to a wide range of chemical substances including acetone, ammonia, benzene, gasoline, and certain acids. In addition, flame retardant (UL 94V-0) and high temperature versions of many products are also available.
Nylon has a specific gravity of 1.14 (relative to water at 1). It is a hygroscopic material, meaning that its' properties are affected by variations in moisture. The tensile strength and stiffness of a product made of 6/6 nylon increases as the temperature and/or moisture decreases. When stored at 50% relative humidity and at room temperature, nylon products will maintain their optimum properties. For that reason, moisture sensitive products are stored in factory sealed bags to preserve their moisture.
Neither our Nylon 6/6 parts nor our packing material contain any unconditionally banned substances, or conditionally banned substances.
This includes Cadmium (Cd) and its compounds, Lead (Pb) and its compounds, Hexavalent Chromium (Cr) compounds, Mercury (Hg) and its compounds, polychlorinated Biphenyls (PCBs), Polybrominate Biphenyls (PBBs), or Polybrominated Diphenyl Ethers (PBDEs).
Heyco's products do not contain any toxic chemicals subject to the reporting requirements of Section 313 of the Emergency Planning and Community Right to Know Act of 1986 and of CFR 372.
RoHs and WEEE
All of our Nylon 6/6 products and packing materials comply with Restriction on Hazardous Substances (RoHS) and Waste for Electrical and Electric Equipment (WEEE) initiatives including:
REACH
Under REACH, Heyco's products are classified as "articles". An article in REACH is defined as, "an object which during production is given a special shape, surface, or design which determines its' function to a greater degree than does its' chemical composition". Currently articles are exempt under REACH. There are two basic exceptions to the articles exemption, these are:
Heyco is confident that none of the substances in Heyco parts are intentionally released. Also based on the information provided by their raw material suppliers and their knowledge of the composition of their products, Heyco products to not contain any of the Candidate Substances of Very High Concern (SVHC) as defined by the European Chemicals Agency (ECHA) in article 57 of the REACH regulation.
| nylon 6/6 | nylon 4/6 | Nylon (Flame Retardant ) | Polycarbonate | Polyethylene | Polypropylene | |
|---|---|---|---|---|---|---|
| Characteristic | General Use | Higher Temp. | Halogen Free | Transparent | Flexible | Nonhygroscopic |
| Specific Gravity | 1.14 | 1.18 | 1.16 | 1.20 | 0.92 | 0.90 |
| UL Flammability Rating | 94V-2 | 94V-2 | 94V-0 | 94V-2 | n/a | 94HB |
| Tensile Strength (MPa) | 76 | 65 | 45 | 60 | 13 | 35 |
| Flexural Strength (MPa) | 42 | 50 | 70 | 83 | 8 | 53 |
| Heat Deflection (1.8 MPa) | 87°C | 160°C | 79°C | 122°C | 42°C | 104°C |
| Electrical RTI | 125°C | 150°C | 125°C | 125°C | 50°C | 110°C |
Adhesive-backed products are intended for attaching to clean and dry, metal, plastic, glass, paper and painted surfaces. Not recommended for concrete, bare wood or other porous or irregular surfaces.
Rubber-based adhesive is for general purpose applications. The majority of items use this type of adhesive. It provides high initial tack and quickly reaches maximum holding strength. It will hold under continuous temperatures up to 125°F (52°C).
Acrylic-based adhesive is for greater holding power and/or higher temperature applications, up to continuous temperatures of 185°F (85°C). It is intended for use with the same clean, dry surfaces as rubber-based adhesive. Some items are available on special order with the acrylic based adhesive.