Electrically Insulating

Electrically Insulating

Tgard 400

Electrically insulating, thermally conductive material

Tgard 400 is a medium thermal performance insulator pad consisting of a ceramic high temperature silicone rubber coated on electrical fiberglass.

Tgard 400 is specifically designed for high pressure mounting applications. The unique formulation offers high resistance to cut-through and ideal material for screw mounting applications with high torque force.

Tgard 400 offers excellent thermal and electrical properties due to the unique coating formulation.

– Excellent breakdown voltage of >5,500 volts AC(avg)

– Excellent cut-through resistance of 900lbs

– Thermal resistance of 0.63C-in/watt at 50 psi

 Additional Product Description Standard thicknesses:
9 mils (0.229mm). Please contact Laird Technologies for alternate thicknesses.Standard sheet sizes:
– Sheet form, roll form and die-cut parts
– Single side pressure sensitive adhesive upon request

Pressure sensitive adhesive:
– Without adhesive (A0): 12 X 18 sheets, 12 x 65M, 12 x 30M roll or custom configuration
– With adhesive (A1): 11.75 X 18 sheets, 11.75 x 30M roll or custom configuration

TgardTM 200 sheets are fiberglass reinforced.

– Switching Mode Power Supplies
– Automotive Electronics
– Telecommunication
Breakdown Voltage (Volts AC) >5500
Color Grey
Operating Temperature Range (°C) – 60 to 180
Product Line Tgard 400 Series
Shore Hardness 90 Shore A
Temperature – Operating (Max Celsius) 180.00
Temperature – Operating (Min Celsius) -60.00
Temperature Range
-60 to 180C (-76 to 356F)
Tensile Strength
17.2 Mpa, 2500psi
Thermal Resistance (°C-in²/W)
0.63 (50psi)
Thickness (mm)
0.229mm, 0.009 inch
Thickness Max (mm) 0.23
Thickness Min (mm)
UL Flammability Rating V-0

A service that is competitive, responsive and reliable

Our sales team and engineers are happy to work directly on site with clients always providing a personal and direct approach to fulfilling customer needs

  • High quality products that are produced in the UK (not China).
  • Local Sales team and engineers available 5 days per week.
  • Comprehensive back up and after sales service, with an actual technician ready to listen and help on the telephone 5 days a week. (No automated phone queuing system)
  • All products are REACH and ROHS compliant.
  • A Reliable, discreet and trustworthy partner with a proven track record in design and engineering.
  • Very competitive compared to overseas competition.
  • A huge reduction in air miles and lead times compared to overseas suppliers.
  • Able to deliver to most destinations in the European Union within 24hrs.

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NOTICE: The information contained herein is to the best of our knowledge true and accurate. However, since the varied conditions of potential use are beyond our control, all recommendations or suggestions are presented without guarantee or responsibility on our part and users should make their own tests to determine the suitability of our products in any specific situation. This product is sold without warranty either expressed or implied, of fitness for a particular purpose or otherwise, except that this product shall be of standard quality, and except to the extent otherwise stated Techni3’s invoice, quotation, or order acknowledgement. We disclaim any and liability incurred in connection with the use of information contained herein, or otherwise. All risks of such are assumed by the user. Furthermore, nothing contained herein shall be construed as a recommendation to use any process or to manufacture or to use any product in conflict with existing or future patents covering any product or material or its use.