• 725 Ternes Dr, Monroe, MI 48162, USA

Common Materials

Nylon (PA 6, PA 6/6)

Nylon, a synthetic thermoplastic, is commonly used at Ammex for fastening and connecting applications. Nylon’s downside is that it has a relatively low impact strength, which is why it’s vital to combine with other materials (such as glass fibers) to improve its strength and have an understanding of the complexities of material flow and injection point(s).

Recommended Wall Thickness: 0.030″ – 0.115″

Common Applications
  • Barbed Fluid Routing Connectors
  • Brake Line Clips
  • HVAC Line Line Clips
  • Jounce Bumber Assemblies

Low-Density Polyethylene (LDPE)

Low-density polyethylene is a low cost thermoplastic polymer used in a variety of applications.  Echo Engineering specializes in catalog and custom LDPE products used mainly by automotive and fluid power manufacturers for shipping protection applications.

Recommended Wall Thickness: 0.030″ – 0.200″

Common Applications
  • A/C Line Shipping Caps
  • Hydraulic port plugs
  • Engine and Transmission inlet/outlet port plugs
  • General purpose shipping caps/plugs


Thermylene®is a specialty chemically coupled glass reinforced polypropylene (PP) which helps it resist distortion under load. Because of it’s glass-reinforced properties, material flow will be crucial towards molding a successful product.

  • Suspension Components
  • Superior knit line strength
  • Excellent chemical resistanse
  • Enhanced tensile strength


TPU is commonly known as a bridge between rubbers and plastics.  Even though it is plastic, it can be extremely flexible and durable.  Because of this, TPU has a variety of different automotive applications.

  • Suspension Components
  • Driveshaft Boots
  • High tensile strength and excellent tear resistance
  • High wear and abrasion resistance
  • High resistance against oils, greases, oxygen, and ozone