Wiska One Gel 300ml Cartridge, Ready to Use Filling Isolating Gel 25kV/mm

Model No. ONEJEL by: Wiska
Availability: Usually 2 - 3 Days


List price £22.48
You save £5.62!
Free Delivery
(over £100+VAT, applies to zones A&B only, £6+VAT otherwise)
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This is the Wiska One Gel - ONEGEL 300ml Cartridge with an opening temperature of -60deg to +200deg C and a dielectric strength of 25kV/mm. It is a new silicone based isolating gel manufactured by Wiska - easy to use with new and improved results, great for DIY jobs around the house.

  • No need to mix two components: the ONEGEL from Wiska is already cross-bonded.
  • Silicone based gel: can be used to fill and insulate spaces to avoid the ingress of water, mousture, gas, or dust.
  • Re-enterable. 
  • Ready to use. Always soft. No expiry date.
  • Opening temp: -60 to +200 deg. Celsius
  • Dielectric strength: 25 kV/mm
  • Color: transparent. 

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Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.


We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.