- Non-silicate formula, will not form damaging gel or sludge
- Prevents future leaks and proven to reduce corrosion How Does It Work?
- Developed following rigorous laboratory testing, SEALit’s advanced formulation contains a special blend of microfibers and polymers.
Once dispersed into the existing antifreeze coolant, SEALit permeates throughout the coolant system and forms an enduring seal in unwanted cracks and holes. Proven to beat nearest competitor in industry standard ASTM test.
Permanently Seals Leaks in
- Engine Blocks
- Cylinder Heads
- Head Gaskets
- Freeze Plugs
How Do I Use It?
- Easy Pour & Go Formula, just add to the expansion tank, the unique formula mixes with all Coolant/Antifreeze without the need to drain or flush the cooling system
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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