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J-B Weld Ultimate Black RTV Silicone Sealant 85g

Part No:


Product Code: AS-103947
WAS £0.00
  • FREE Delivery on all orders over £30
  • Available in 2-3 days

J-B Weld Ultimate Black Gasket Maker and Sealant is an RTV (Room temperature vulcanised) Silicone gasketing material, designed for use in mechanical assemblies where maximum petroleum and oil resistance is required. Upon curing, which occurs when the product is exposed to the moisture in the air, the silicone forms a tough, long lasting, waterproof gasket seal on most surfaces. It will not shrink or crack, resists oil and petroleum products, resists weathering, is sensor safe, has good temperature resistance up to 500 F intermittent and is great for many automotive applications.

Great for the following applications:

  • Oil Pans
  • Valve Covers
  • Transmissions Pans
  • Timing Gear Covers

Product Specifications

  • Set Time: 1 Hour
  • Cure Time: 24 Hours
  • Cure Colour: Black
  • Maximum Oil Resistance
  • Temperature Resistant Up To 500 F
  • Low Odor
  • Sensor Safe

FREE UK Mainland Delivery on all orders over £30

Autosessive offers free UK Mainland delivery when you spend over £30. Orders below this value or to addresses outside this region will incur a small delivery charge.

Standard delivery times are typically 2-4 working days to UK mainland but Next Day and other premium delivery options are available if required. We aim to dispatch all orders within one working day from receiving your order wherever products are shown as in stock. We will always advise if deliveries will take longer as we never like to hold up a project.

Orders placed after 4pm each day, over a weekend or on bank holiday will be processed and dispatched on the following working day.

14 Day Extended Returns

From the time you receive your order you have 14 days to decide if you want to keep the item(s). Should you decide one of more of the items received is unsuitable or unwanted simply send the goods back to us for either a refund or exchange. We aim to process all returns received within 3 working days.

For more information see our Delivery Information page or Returns Policy



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