Print this page

Vydyne® 21SPF

Vydyne® 21SPF is a general purpose nylon 6,6 resin. It is designed principally for injection molding fabrication. This grades offer a well-balanced combination of engineering properties characterized by high strength; rigidity; good toughness; high melt point; good surface lubricity; abrasion resistance; and resistance to many chemicals, solvents, gasoline and machine and motor oils.

Vydyne® 21SPF series resins permit production of molded parts with good initial color plus good property and color retention when using regrind. This resin is recognized by Underwriters Laboratories and conforms to the requirements of many industrial, federal and military specifications for premium-quality, general purpose nylon 6,6 resins.

Application End Uses

Vydyne® 21SPF series resins are internally and externally lubricated for improved machine feed and exceptional mold release. They are intended for use in high-productivity applications. In many applications, the molding cycle can be reduced because parts may be removed from the cavity at higher temperatures. In difficult molds where parts have a tendency to stick in the cavity, Vydyne® 21SPF can reduce or eliminate the need for mold release sprays. Critical molded part dimensions should be checked against specifications before implementing shorter molding cycles on a routine production basis.


Name Properties Download
Vydyne ® 21SPF Technical Data Sheet
Vydyne ® 21SPF BLK Technical Data Sheet

Learn more about Vydyne® 21SPF

Polyamide 66 vs. next-best resins

PA66 offers the best balance of performance and overall system cost. Our white paper compares nylon 6,6 to the next-best resins — and shows why it comes out on top.

Compare the alternatives