PVC COATED HARNESS YARNS

PVC has long been recognized for Exceptional Weathering Performance, Moisture Resistance and Abrasion Resistance.

EY builds on these basic properties by compounding additives for cold flexibility, fire resistance, and resistance to engine fluids. PVC also provides abrasion resistance and a uniform surface for ease of braiding for protection of wire assemblies.

Grades Available

Regular Performance: VN-4400 & VN-4000 both are vinyl coated nylon yarns designed for the braiding harness type constructions of electrical wiring systems. The vinyl coating is fire resistant and contributes sufficient fire retardancy to the yarn.

High Performance: VN-4400S and 4000S & VN-4000S Vinyl coated nylon yarn performs at higher temperatures for extended periods of time while retaining the properties of high fire retardancy, abrasion and oil resistance. Meets MVSS 302, SAE J369, UL94 V-0 at 125 mL.

Physical Properties

  VN-4400 VN-4400S VN-4000 VN-4000S
Diameter
0.028" (0.71 mm) 0.28” (0.71 mm) 0.040" (1.02 mm) 0.040" (1.02 mm)
Tensile Strength
15 lbs (6.80 kg) 15 lbs (6.80 kg) 22 lbs (9.97 kg) 22 lbs (9.97 kg)
Yield
1000 yds/lbs
(2000 m/kg)
1000 yds/lbs
(2000 m/kg)
550 yds/lbs
(1100 m/kg)
550 yds/lbs
(1100 m/kg)

Thermal Properties

  VN-4400°F (°C) VN-4400S VN-4000°F (°C) VN-4000S°F (°C)
Cold Flex Tolerance
-40°F (-40°C) -65°F (-54°C) -40°F (-40°C) -65°F (-54°C)
Recommended Maximum
Serv. Temp.
225°F (107°C) 280°F (138°C) 225°F (107°C) 280°F (138°C)

Effects of Common Vehicle Fluids

24 Hours at 200°F
VN-4400/VN-4000 VN-4400S/4000S
Grease 4 0
4 0
Motor Oil 10 w 30
4 1
Battery Acid
2 2
Anti Freeze
4 0
Windshield Wiper Fluid
4 2
Hydraulic Fluid
0 0
Gunk
1 0
Relative Abrasion Resistance
2 2
Fluid Rating System
Abrasion Rating System
0 = No Effect
0 = No Effect
5 = Significant Embrittlement
5 = Significant Embrittlement

Both grades of vinyl are compounded to provide outstanding properties at their rated service temperature.

These performance properties include:

  • Weathering
  • Moisture Resistance
  • Abrasion Resistance
  • Fire Resistance with Retardance (Meets MVSS 302, SAE J369, UL94 V-0 at 125 mL)
  • Resistance to degradation from oil, grease and other common engine fluids.

Core Yarn

All EY braid yarns are constructed with high tenacity, nylon multifilament. The tensile properties are essentially unaffected by temperatures up to 300°F (150°C) and are likewise tolerant to most engine fluids that may penetrate the vinyl coating. (One caution is that concentrated acids degrade nylon.)

Colors

Standard colors include Black, Yellow and Gold.

Product Code

VN-4400
VN-4400S
VN-4000
VN-4000S

EY Part Number

55VN02853164010068
55VN02853154009164
55VN04054164019162
55VN04054154009158

Color

Black
Black
Black
Black