Chiltern Connection Products
Order Code: CCL/QSil573/40K
QtyEx. VAT


40Kg Thermally conductive silicone elastomer

QSil 573 is a liquid, 2-component, addition-cure silicone system. It cures at ambient or elevated temperature to a silicone rubber with excellent electrical insulating properties whilst retaining good thermal conductive properties. QSil 573 is recommended for the encapsulation of sensitive electronic assemblies and is readily repairable. It is completely neutral and will not cause corrosion of electrodes and other metal parts. 

Key Properties

  • Room temperature cure
  • Cure can be accelerated by heat
  • Neutral and non-corrosive
  • Low viscosity
  • Excellent thermal conductivity
  • Tough, protective rubber
  • Resistant to reversion

Various sizes available on request


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Payment Options

Payment can be made online by debit/credit card or you can request a pro-forma invoice to pay by BACS. (Please note, there are no card fees for online transactions).

If you would like to open a 30 Day Credit Account, complete our Credit Account Form here

On approval of your account, our accounts team will provide you with all the information you require to place your orders.

Delivery Options


£9.95 for orders under £100*

All orders** placed by 2:00 pm will be delivered on a Next Day Service by a reputable UK courier. Orders after 2pm will be despatched the following working day.

Same Day Service or Next Day AM services are available. Contact our orders team for more information at or call us at 01491824788

You also have the option to collect your orders from our premises in Wallingford.

For shipments overseas, please contact us directly.

*non-hazardous products
**for products in stock.