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Wynn'sBlack Gasket Maker - Heat & Cold Resistant - Waterproof & Oil Resistant - Ideal for Engine Components & Automotive Applications - 200ml

Wynn'sBlack Gasket Maker - Heat & Cold Resistant - Waterproof & Oil Resistant - Ideal for Engine Components & Automotive Applications - 200ml

Q: When fitting a rocker cover do you apply to both surfaces or just the head.

We use it regularly on our tractor puller which has the rocker cover off every month or so during the summer. We find it best to put the silicon onto the decreased rocker cover then let it go off for at least an hour then attach rocker cover to a greased head, this way we can remove multiple times without fuss of peeling and replacing silicon as it stays firmly adhered to rocker cover . If you glue it down to both the head and rocker cover degreased it will definitely seal well but won't come off in one piece next time .

Q: How long does it take to dry

Touch dry after about an hour, left it on for about 3 before I drove the car to be sure.

Q: Can this be used on a car water pump upto 20psi? How long does it take to dry once metal surfaces are bolted together?

i build jag engines up using this & no problems best to leave for 24 hours if poss, have also fitted water pumps to later jags & used car straight away all ok GW

Q: Is good to make a sump pan gasket, resistant to oil and high temperature?

Would recommend it to anyone its is brilliant even put it on exhaust joint and it don't get any hotter than that!!!

Product ID: 47966283

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Details

Colour
Black
Brand
Wynn's
Item weight
300 Grams
Liquid volume
2E+2
Full cure time
7 Days

💧Waterproof & oil resistant seal

🔥Heat resistant up to 260°C

❄️Cold resistant down to -40°C

Description

🛠️ Seal the deal with Wynn's – where performance meets precision!

GASKET FREE INNOVATION - Custom-fit seals that replace traditional gaskets, cutting installation time and boosting durability.
SENSOR CONVERTER SAFE - Formulated to protect catalytic converters and electronic sensors—no emissions interference.
UNMATCHED CHEMICAL DEFENSE - Resists oils, transmission fluids, antifreeze, grease, and toxic gases for leak-proof reliability.
VERSATILE ENGINE ESSENTIAL - Perfect for cylinder-head covers, oil crankcases, transmissions, water pumps, and thermostats.
EXTREME TEMPERATURE MASTERY - Seals strong from -40°C to 260°C without cracking or losing flexibility.

Wynn's Black Gasket Maker is a high-performance polysiloxane sealant engineered for extreme heat and cold resistance (-40°C to 260°C). Waterproof and oil resistant, it replaces traditional gaskets with a flexible, durable seal that protects engine components without harming catalytic converters or sensors. Ideal for automotive and industrial use, it ensures leak-proof, long-lasting performance across critical engine parts.

Have a Question? See What Others Asked

When fitting a rocker cover do you apply to both surfaces or just the head.

How long does it take to dry

Can this be used on a car water pump upto 20psi? How long does it take to dry once metal surfaces are bolted together?

Is good to make a sump pan gasket, resistant to oil and high temperature?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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171.84 DT

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ravi S.

I loved the variety of products available. Will definitely shop again.