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Black Gasket Maker

Wynn's Black Gasket Maker from Hydraulic Equipment Supermarkets. Wynn’s Black Gasket Maker is a flexible high-temperature resistant, watertight filling and bonding material. It is a polysiloxane based product in a pressure cartridge for making seals and gaskets in a rapid and easy way. Black RTV silicone Oil resistant Sensor and cat.safe Fingertip flow control. For more information please email enquiries@hydraulicequipment.net
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Ordering Description Price Quantity

Wynn's Black Gasket Maker from Hydraulic Equipment Supermarkets


Is resistant to oils, transmission fluids, water, antifreeze, grease, smoke and hot toxic gases.

Replaces cork, felt, paper and rubber gaskets.

Withstands low temperatures up to -40°C (continuous) and high temperatures up to 232°C (continuous) and 260°C (intermittent).

Does not harm catalytic converters and electronic sensors.

Retorquing is not necessary after complete curing.

No mixing required (single component).

Ideal for replacing seals and gaskets of engine components (cylinder-head cover, transmission and oil crankcase, water pumps, thermostats), light fittings, heating installations, AC, bodywork, industrial ovens, cooking stoves, window seals and many other applications.

The product is not suitable for replacing head gaskets nor for applications that require continuous immersion in petrol.

Do not use in joints deeper than 10 mm.

Avoid contact with solvent cleaners during cure.

Appearance : Non-Sag black paste

Density : 1.03

Temperature resistance : -40 to +232°C (up to 260°C for short exposure)

Application temperature range : +5 to +40°C

Delivery Information and Returns Policy

Delivery Information :

Delivery charges apply.

If you require International Delivery charges will apply and you will need to contact enquiries@grouphes.com to process your order. 

Delivery will be Next Working Day wherever possible if the order is made before 4pm or 2pm for any order of oil.  Please allow up to 7 working days for any orders of 205 litre/45 gallons barrels of oil or 1000L IBCs. 


Returns policy:

You are entitled to cancel your order and return the product to any division of Group HES within 7 working days from delivery date.  After this date, it will be at the discretion of management to decide whether a refund or exchange will be given. A full refund is available if the item is unused, undamaged and in the original packaging. The item must not contain any fluids, including water, oil etc.

An average 20% (percentage may vary), handling charge will be applicable unless the part is faulty or incorrectly described. Any shipping costs will not be refunded.  

If you need to return an item, please contact admin@grouphes.com immediately with your order number and reason for return.

Please allow up to 30 days for refunds to be applied or alternatives to be resent out. The company reserves the right to assess whether there is any consumer error involved and will take this into account when refunds are granted.

Your statutory rights are not affected.

These terms are subject to change so do check back regularly. 

If you need to return an item due to warranty reasons - please refer to our Terms and Conditions and contact admin@grouphes.com or call 01452 730 774.