Polyseam Artificial Turf Film

PolySeam is a thin gauge plastic film used as a seam strip for artificial turf. Due to its inherent durability and moisture resistance, this film is widely used in the installation of artificial turf for putting greens, tennis courts, playing fields, and similar synthetic surfaces.

PolySeam lays flat under the layers of the turf. Using adhesive, the film is bonded to the turf for protection against the elements. Stocked in rolls 16″ x 1000′ for convenience, this material can also be custom converted to fit a variety of areas. Perfect for both professional installers and DIY installation.


Some of the outstanding features of Grafix PolySeam sheets and film:

  • Dimensional stability in both directions
  • Lay flat
  • Chemical resistance
  • Tear resistance
  • Heat resistance up to 300oF/140oC
  • Electrical resistance


  • Stock .005″ clear polyester
  • Stock in 16″ x 1000′ rolls

*Custom thickness/sizes available


Properties are based on .005″/124um PolySeam film. Properties of other gauges and finishes of PolySeam film can vary.

PolySeam Spec Table

Film PropertyValueUnitsTest Method
Physical Properties
Tensile Strength (MD)28,000psiASTM D 882
Tensile Strength (TD)34,000psiASTM D 882
Strength Elongation MD15,000psiASTM D 882
Strength F-5 TD14,000psiASTM D 882
Modulus MD710,000psiASTM D 882
Modulus TD740,000psiASTM D 882
Elongation MD115%ASTM D 882
Elongation TD92%ASTM D 882
Density1.39g/ccASTM D 1505
Viscosity0.56dL/gASTM D 4603
Electrical Properties
Dielectric Strength
AC, 20°C, .00092″7,000volts/milASTM D 149-64
Dielectric Constant
25°C, 1 kHz3.2ASTM D150-81
Dissipation Factor
25°C, 1 kHz0.005ASTM D150-65
Volume Resistivity 25°C1.00E+19ohm-cmASTM D257-78
Corona Threshold425V-ACASTM D2275-80
Thermal Properties
Melt Point200
Service Temperature Range -70-150C
Dimensional Stability
at 105° MD0.6%Measured Shrinkage
at 105° TD0.9%Measured Shrinkage
at 150° MD1.8%Measured Shrinkage
at 150° TD1.1%Measured Shrinkage
Specific Heat0.28
Thermal Expansion1.7×10-5ASTM D 696
Chemical Properties
Resistance by Class
Water Vapor 0.1g/100 in2/24hr.ASTM E-96
Carbon Dioxide16g/100 in2/24hr.ASTM D1434-58
Moisture Absorption<.8%ASTM D-570-63
Stain ResistanceMost Household Agents & Chemicals
Properties of PolySeam Film

For more specific questions regarding PolySeam Film, please contact your sales representative today!

Important Notice:  Grafix makes no warranties, express or implied, including but not limited to any implied warranty of merchantability of fitness for a particular purpose.  The user is responsible for determining whether the Grafix product is fit for a particular purpose and suitable for the user’s method of application.  Please remember that many factors can affect the use and performance of a Grafix Plastics film product in a particular application.  Given the variety of factors that can affect the use and performance of a Grafix product, some of which are uniquely within the user’s knowledge and control, it is essential that the user evaluate the Grafix product to determine whether it is fit for a particular purpose and suitable for the user’s method of application.


  • DEHP, DBP and BBP free. Contact us for more details
  • RoHS Compliant

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