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HYDLAR® ZF

Hydlar ZF is now FDA compliant for direct food contact applications. Hydlar ZF is a blend of DuPont ZytelŪ Nylon filled with KevlarŪ aramid fibers. The Kevlar filler enhances the physical properties but is not abrasive like glass fillers. Kevlar significantly increases wear resistance. The Kevlar filler also elevates the tensile strength, flexural strength, impact and heat properties. Ideal for structural and wear-resistant applications (aerospace, automotive and industrial). New Hydlar ZF Nylon/Kevlar thermoplastic composites outperform metals, glass or other reinforced plastics.

Product Applications

  • Components utilized in environments that demand higher PV limits and very high wear resistance
  • Bushings (in water)
  • Compressor Vanes
  • High Temperature Applications (bushings)

Typical Properties

  • Superior wear resistance
  • Outstanding machinability
  • High PV limit
  • Virtually no abrasion to outer surfaces
PROPERTY TESTED
UNITS
MOLDED AND
EXTRUDED
MOLDED
ONLY
EXTRUDED
MOLDED
NYLON**
6/6

NYLON***
6
NYLON**
6/6
NYLON**
6/6
HYDLAR ZF
6/6
Physical
            

Fiber
Content
Tensile Strength
Tensile Modulus
Elongation
Flexural Strength
Flexural Modulus
Impact Strength
   Izod (notch)
Compressive Strength
Specific Gravity
Water Absorption
   @ 24 hrs, 73oF
Saturation, 73oF
Wear Factor****

Galling of Mating
Test Surface


%
psi x 103
psi x 106
%
psi x 103
psi x 106
ft.lb/in

psi x 103
gr/cm3
%

%

none
0
12.0

60.0

.41

1.0
13.0
1.14

1.2
8.5
867 to 1105

minor

glass
10%
14.0
.9
3.2
18.0
.6

1.1
14.5
1.21



149-
melting

heavy

glass
13%
15.0

2.0

.7

.9

1.22


7.1
N/A

glass
33%
27.0
3.0


1.3

2.0
24.0
1.38

.7
5.4
424

severe
Nylon/Kevlar
N/A
16.0
1.3
4.0
23.0
.9

2.7
19.3
1.16

1.2
8.5
128 to 79
(ZM grade)

none
Thermal
.
.
.
    
.

Thermal Expansion

Continuous Use Temp.
in/in/oF

oF

4.0 x 10-5

210
200

200

1.5 x 10-5

210
1.3 x 10-5

230
1.6 x 10-5

210

**DuPont ZytelŪ property charts except wear.
***RTP test data except wear.
****ASTM Thrust Washer Test: PV=2,500 P=250 psi V=10 f.p.m.

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