Polyethylene

DuraSurf ETA

Laird Plastics' standard line of Easy-To-Apply wear strips and adhesive backed tapes.

Each tape product offers excellent abrasion resistance, low coefficient of friction, high impact strength and high performance properties people have come to expect from UHMW. By providing this exceptional material with an adhesive backing, installation time and costs are significantly reduced. No need for bolts or fasteners, no need to countersink. As a matter of fact, DuraSurf™ ETA also reduce scrap by 75%. When a standard 1/4" thick sheet of UHMW is installed using the traditional mechanical fastening method, 3/16" of the material is lost to the bolt head. This leave only a 1/16" usable wear surface. You can achieve the same result with a 1/16" DuraSurf™ ETA tape product and eliminate 80% of the time and cost associated with traditional installation methods. Crown Plastics offers a wide range of both rubber and acrylic based adhesive systems to meet virtually any application requirement.

Available Thicknesses

  • .005" (.125 mm)
  • .010" (.25 mm)
  • .015" (.38 mm)
  • .020" (.5 mm)
  • .031" (.75 mm)
  • .040" (1 mm)
  • .050" (1.3 mm)
  • .062" (1.57 mm)
  • .080" (2 mm)
  • .093" (2.35 mm)
  • .100" (2.5 mm)
  • .125" (3.17 mm)

Available Widths

All dimensions between 1/4" (6.35 mm) and 24" (610 mm)

UHMW Properties

  • Excellent abrasion and wear resistance
  • Very high impact strength
  • Meets FDA and USDA guidelines
  • No moisture absorption
  • Self-lubricating - no need for oils or lubricants
  • Excellent noise abatement properties
  • Chemical resistance and corrosion resistant
  • Maintains performance and properties at -30C
  • Meets ASTM-D-4020-81
  • Low coefficient of friction

Mechanical Properties




UHMW Thickness Gauges
Property ASTM Test Units Metric (US) .030" .060" .125"
Density D792 gm/cc 0.93 0.93 0.93
Tensile Strength @ Yield D638 MPa(psi) 23(3300) 20(2964) 22(3227)
Tensile Strength @ Break D638 MPa(psi) 53(7740) 49(7056) 44(6373)
Elongation @ Break D638 % 60 463 466
Youngs "E" Modulus D638 MPa(psi X 105) 725(1.05) 731(1.06) 672(.097)
Izod Impact Strength D256(1) J/m(ft-lb/in notch) * * 80(16.8)
Hardness Shore "D" D2240 - 65 65 65
Water Absorption D570 % Nil Nil Nil
Rel. Solution Viscocity D4020 dl/gm 2.3-3.5 2.3-3.5 2.3-3.5
Coefficient of Friction D1894-96 Static .16 .16 .16
Coefficient of Friction D1894-96 Dynamic .14 .14 .14

(1) - Izod Impact: Samples have 2(15o +/- 1/2o) notches on opposite sides to a depth of 5 mm

Thermal Properties

UHMW Thickness Gauges
Property ASTM Test Units Metric (US) .030" .060" .125"
Crystalline Melting Range Polarizing oC(oF) 136(276) 134(273) 134(273)
Crystallinity D3417-96 % 48 47 50
Coefficient of Linear Expansion
20o - 100oC D696 K^-1 * * 1.5 x 10^-4
-20o to -100oC D696 K^-1 * * 9.18 x 10^-5

Electrical Properties

UHMW Thickness Gauges
Property ASTM Test Units Metric (US) .030" .060" .125"
Volume Resistivity D257 Ohms/cm 5.9544 x 10^7 1.4516 x 10^7 >2x10^7
Dielectric Strength D150 Kv/cm(V/mil) * * 142
Dielectric Constant D150 2.39 2.29 2.28
Surface Resistivity D257 Ohms 10^13 10^13 10^13
Static Decay Seconds <.01 <.01 <.01
Dissipation Factor
At 50Hz D150 * * *
At 10KHz D150 -0.001 -0.002 -0.000
At 5MHz D150 -0.001 -0.001 -0.001

* - No reading could be taken due to material thickness

Comparison of Dynamic Coefficient of Friction on Polished Steel

Material UHMW-PE Nylon 6 Nylon 6/6 Nylon MoS2 PTFE Acetal Polymer
Dry .10-.22 .15-.40 .15-.40 .12-.20 .04-.25 .15-.35
Water .05-.10 .14-.19 .14-.19 .10-.12 .04-.08 .10-.20
Oil .05-.08 .02-.11 .02-.11 .08-.10 .04-.05 .05-.08