Extruded Mini Mesh Specifications
ASTM F668, Federal Specification RR-F-191/1E Type IV, AASHTO M-181 Type IV Class A
Product Name: Extruded Poly (Vinyl Chloride)
PVC Coated Steel Chain Link Mini Mesh Fence Fabric
Basic Use: Extruded PVC coated mini mesh fabric
is a PVC coated, high strength galvanized steel chain link fence
fabric for industrial, commercial and institutional
applications. Extruded Fabric is contained in local, state and
federal
government specifications for use in prison, road, dock,
airport, housing, forestry, and military use.
Composition and Material: The galvanized steel
core wire for producing extruded PVC coated steel chain link
fence fabric is created by cold-drawing good commercial grade
steel rod into wire of the appropriate diameter. The steel rod
from which the wire is drawn is produced by the open hearth,
electric furnace or basic oxygen process. The galvanized coating
is produced by passing the cleaned wire through a bath of molten
zinc which conforms to ASTM B6. The extruded PVC coating is
produced by extruding PVC at a coating thickness of 0.015”
(.38mm) - 0.025” (0.64 mm) over a galvanized core wire.
Standards:
ASTM B6 – Slab Zinc
ASTM F567 – Installation of Chain Link Fence
ASTM F668 – Poly (Vinyl Chloride) (PVC) and Other Organic
Polymer-Coated Steel Chain Link Fence Fabric, Class 1
Federal Specification RR-F-191K/1E – Fencing, Wire, and Post
Metal (Chain Link Fence Fabric), Type IV
AASHTO M-181 – Chain Link Fence, Type IV, Class A
Technical Data
General: The manufacturer, if requested, will
supply samples and certification that all materials furnished
comply with the appropriate specifications.
Chain Link Fence Fabric: The base metal of the
chain link fence fabric is composed of commercial quality,
medium carbon galvanized (zinc coated) steel wire. The vinyl
coating is continuously applied over the galvanized wire by the
extrusion process. The extrusion process ensures a dense and
impervious coating free of voids, as well as a smooth and
lustrous surface appearance. Vinyl coating thickness, galvanized
coating weight, and wire tensile strength conform to ASTM F668,
Class 1, Federal Specification RR-F-191/1E Type IV, and AASHTO
M-181 Type IV, Class A. The wire is PVC coated before weaving
and is free and flexible at all joints. Unless otherwise
specified, fabric woven in 2” (50 mm) mesh, under 72” (1,830 mm)
in height, is knuckled at both selvages; fabric 72” (1,830 mm)
high and over is knuckled at one end and twisted at the other.
All fabrics woven into meshes under 2” (50 mm) have both
selvages knuckled.
Wire Coating: Only plasticized poly (vinyl
chloride) (PVC) with a low temperature (-20 C ; -4 C)
plasticizer and no
extenders or extraneous matter other than the necessary
stabilizers and pigments, is used. The PVC coating resists
attacks from prolonged exposure to dilute solutions; most common
mineral acids, seawater, and dilute solutions of most salts and
alkali.
Installation: Install fence in accordance with
ASTM Practice 567. Handle all PVC coated material with care. If
PVC
coating is damaged during installation, contractor must replace
or repair the material at own expense.
Maintenance: Periodic inspection is recommended
but no routine maintenance is required.
PVC Coated Steel Wire Characteristics Table
Coating thickness, coating weight, and wire tensile strength
conform to ASTM F668 specifications.
|
Zinc Coated
Core Wire Size |
PVC
Coated Wire Size |
PVC Coated
Wire Allowable Variance |
Minimum Core Wire Zinc
Coating Weight |
PVC Coating Thickness
|
Minimum Breaking/ Tensile Strengh
|
|||||||
|
Gage
|
Inch
|
mm
|
Gage
|
Inch
|
mm
|
Oz/ft²
|
g/m²
|
Inch
|
mm
|
lbf
|
Newtons
|
MPa
|
9 |
0.148 |
3.76 |
6 |
±0.005 |
±0.13 |
0.30 |
92 |
0.015
to 0.025 |
0.38
to 0.64 |
1290 |
5710 |
515 |
11 |
0.120 |
3.05 |
8 |
±0.005 |
±0.13 |
0.30 |
92 |
850 |
3780 |
515 |
||
14 |
0.080 |
2.03 |
11 |
±0.005 |
±0.13 |
0.25 |
76 |
380 |
1690 |
515 |
||
PVC Coated Chain Link Fabric Sizes With Selvages Table
|
Mesh Size
|
Finished Wire Gage
|
Fabric Wire Height
|
Selvage
K - Knuckled T - Twisted/Barbed |
Roll Size
|
2" |
6, 8 |
18" - 240" |
KK, KT, TT |
25', 50' |
1 3/4" |
6, 8 |
18" - 240" |
KK |
25', 50' |
1" |
8 |
18" - 144" |
KK |
25' |
5/8" |
11 |
18" - 72" |
KK |
25' |
1/2" |
11 |
18" - 72" |
KK |
25' |
3/8" |
11 |
18" - 72" |
KK |
25' |
Typical Vinyl Properties Table
|
Test
|
Test Method
|
Value
|
Specific Gravity |
ASTM D 792 |
1.130 ± 0.03 |
Hardness, Durometer |
ASTM D 2240 |
A90 ±5 |
Tensile Strength |
ASTM D 412 |
2600 ± 5% |
Ultimate Elongation |
ASTM D 412 |
275% ± 5% |
|
Mandrel Bend Test, 10X mandrel
|
ASTM D 668 |
-20° F (-29° C) |
|
Dielectric Strength, volt/mil
|
ASTM D 149 |
750 |
|
Compression Cut-Through, lbs
|
BELL LABS |
1500 |
Accelerated Aging Test |
ASTM D 1499 |
1500 hrs at 145° F |
