Over Drayin In Ppa Resins

Product and Properties Guide

®

Zytel
nylon resin

®

Start with DuPont

Zytel® is the DuPont trademark for the many different nylon resins that the company makes. Zytel® nylon resins are thermoplastic polyamides. Since their invention by DuPont over 50 years ago, they have been the most widely used of all engineering plastics. They are tough, withstand repeated impact, and arehighly resistant to abrasion and most chemicals. Molded articles retain their shape at elevated temperatures, are strong in thin sections, and have low coefficients of friction. Many compositions are rated V-2 by Underwriters Laboratories Subject 94. Some also qualify for the V-0 rating. The principal Zytel® nylon resins may be divided by chemical composition into three basic groups—nylon 66, nylon612, and copolymers, all of which may be modified to give special properties. Compositions in any of these groups may also be made with different molecular weights. Properties such as melting point, water absorption, and modulus of elasticity are determined primarily by the type of nylon. Impact resistance is affected by the type of modifier used

(if any) and molecular weight of the nylon. Meltviscosity is determined mainly by molecular weight. Various additives are used to enhance specific properties (e.g., heat resistance, weather resistance, color stability) and to improve processing (e.g., mold release, screw retraction). Zytel® nylon resins may be reinforced with glass fibers to increase their tensile strength, stiffness, and dimensional stability. In addition to the commerciallycoded compositions, there are many “FE” coded resins designed to have specific attributes. Information concerning such compositions, as well as any other needs, can be obtained from your DuPont representative. Most of the solid granular material products are supplied in cylinder cut of 2.29 × 2.54 mm (0.090 × 0.100 in) nominal dimensions. Other Zytel® nylon resins are supplied in a nominallyrectangular cut approximately 3.18 × 3.18 × 1.58 mm (1⁄8 × 1⁄8 × 1⁄16 in). Some compositions are available in colors.

1

Table 1 Compositions
Designation Description Characteristics and Major Uses

Nylon 66—Melt at 262°C (504°F)—Stiff and strong over a wide range of temperatures. Excellent toughness and chemical resistance. Zytel® 101 Zytel® 101L General Purpose— Unlubricated General Purpose—Lubricated General Purpose— Fast Cycle Heat Stabilized— Lubricated Basic nylon 66. Unmodified nylon 66 of molding viscosity. The industry standard. A nylon 66 lubricated for improved machine feed and mold release characteristics. Widely used in injection molding for mechanical parts, consumer products, etc. A non-nucleated nylon 66 for optimum molding performance. New, improved heat stabilized nylon66 designed to retard embrittlement at high service temperatures. Has a 140°C (284°F) UL rating for electrical use. Optimum stabilization for heat life and good electrical properties. Lubricated for improved machine feed and mold release. Contains well-dispersed carbon black for maximum resistance to weathering. Stabilized against hydrolysis and oxidation. For long-term exposure to hot water.Lubricated. Internally lubricated and lightly nucleated for high productivity. For extrusion into rod, tubing, and complex shapes. Can be molded into parts requiring high impact resistance.

Zytel® 101F Zytel® 103HSL

Zytel® 105 BK010A Zytel® 122L Zytel® 132F Zytel® 42A

Weather Resistant Hydrolysis Resistant Lubricated, Nucleated Fast Cycle High Viscosity for Extrusion

Modified Nylon66—Melt at 262°C (504°F)—Like nylon 66 with added impact resistance and flexibility. Zytel® 408L Zytel® 408HS Zytel 3189
®

General Purpose— Lubricated Heat Stabilized General Purpose

A lubricated modified nylon 66 with superior toughness and improved mold release. A new, improved heat stabilized modified nylon 66. Impact strength between Zytel® 408 and Zytel® ST801.

Super Tough Nylons—Melt...