TekNational, Inc.
Tek-Sil® SR Materials
Tek-Sil® SR materials offer an economical solution to most thermal transfer problems. They are inexpensive and easy to use.  All Tek-Sil® SR materials are made with a fiber glass matrix to resist puncturing and improve tear strength. Tek-Sil® SR materials come with and without adhesive (PSA) and can be die-cut or kiss-cut to specification.  "SR" is available in five standard thicknesses (.006" to .012").  Typical thermal conductivity for "SR" is .90 W/m-k. 
Tek-Sil® SR Materials
ColorvisualGreenish GrayGreenish GrayGreenish GrayGreenish GrayGreenish Gray
Thicknessinches0.006 +/-0.0050.0075 +/-0.0050.008 +/-0.0050.009 +/-0.0050.012 +/-0.005
Thicknessmm0.15 +0.02/-0.040.191 +/-0.0130.20 +0.02/-0.040.229 +/-0.0130.30 +0.10/-0.0
Thermal Resist.°Cin²/W0.510.450.560.50.66
Thermal Resist. w/PSA(1)°Cin²/W0.78n/a0.83n/a0.93
Specific Gravityg/cm³2.
Hardness (ASTM D2240)Type A878787n/a92
Tensile StrengthkN/m1111111111
Elongation%2 or less2 or less2 or less2 or less2 or less
Tear StrengthkN/mn/an/an/an/an/a
Volume ResistivityMohm-m1.0x1071.0x1071.0x1071.0x1071.0x107
Withstand VoltagekV/minute4n/a6n/a7
Dielectric Constant1KHz2.5n/a3.2n/a3.5
Maximum Use Temp.°C-60°C to +180°C-60°C to +180°C-60°C to +180°C-60°C to +180°C-60°C to +180°C
Adhesive Coating-AvailableAvailableAvailableAvailableAvailable

(1) FTM P-3010 (ASTM D5470 Equivalent)