1 1

Würth Engine Sealing Compound Silicone Special 180

Würth Engine Sealing Compound Silicone Special 180

0890320

24 in stock

Key Features

  • Permanently elastic, oxime-curing silicone sealing compound designed for engine, transmission, and bodywork applications.
  • Forms a cold-vulcanising silicone rubber seal that bridges surface irregularities and compensates for expansion and vibration.
  • Excellent adhesion on metals, plastics, and painted surfaces - remains secure even after years of use under vibration and temperature cycling.
  • Does not run or pull threads, enabling clean and controlled application.
  • Chemically resistant against oils, coolants, and automotive fluids for long-lasting sealing performance.
  • Fast skin formation within 8-15 minutes; full vulcanisation at approx. 1.5 mm per day.
  • Remains permanently elastic, preventing cracking or leakage caused by movement or thermal stress.
  • Temperature resistant from -50°C to 150°C, with short-term peaks up to 180°C.
  • Transparent finish for discreet, professional results on visible or exposed surfaces.
£11.99 GBP
£11.99 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

Shipping Information

What Are My Shipping Options?

In-Store Pickup

In-Store pickup is available on all purchase. Pickups are available Monday - Friday between the hours of 9:00–17:00. 

An email confirmation will be sent when your order is ready for collection. 

Free Shipping

We offer free Standard (2-3 Days) shipping on orders within the United Kingdom on orders over £100. Please note, some large items that require specialist courier companies, such as large mirrors and palleted items are excluded from this deal.

Shipping Fees

We also offer shipping at the following rates:

Standard-Size Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days -£23.99


Large Parcel

Standard (UK Only) - 2-3 Days - £2.99

Express (UK Only) - 1-2 Days - £4.99

International (EU) - 3-7 Days - £14.99

International (ROW) - 5-10+ Days - £69.99

Most UK orders will be sent using Royal Mail, with larger items being sent with DPD.

International orders within the EU will normally be dispatched with Royal Mail, DPD, or UPS.

International orders to the rest of the world will normally be sent with DPD or UPS.

Please note, international delivery charges are very volatile and subject to change. We will do everything in our power to honour the delivery fee, however, in some cases, shipping may increase in price. In this event, you will be given the offer to pay the difference or cancel the order and receive a full refund.

Please note, we may be subject to various rules and restrictions in relation to some international deliveries, and you may be subject to additional taxes and duties over which we have no control. If such cases apply, you are responsible for complying with the laws applicable to the country where you live and will be responsible for any such additional costs or taxes.

Dispatch Times

Orders placed before 15:00 Monday - Friday will be shipped on the same day. 

Orders placed after this time will be shipped on the following business day,

Please note, we are closed at weekends, as well as English Bank Holidays.

Returns Policy

Our refund policy can be found at the following address: https://esupplyline.com/policies/refund-policy.

Further Information

You can contact us for further information on our shipping policies using the following:

Phone: 01953 711 881

Email: sales@esupplyline.com

Live Chat: Available on our website, Monday - Friday, 8:30 - 17:00.

Contact Form: https://esupplyline.com/pages/contact

View full details
Product Product subtotal Quantity Price Product subtotal
Würth Engine Sealing Compound Silicone Special 180
Würth Engine Sealing Compound Silicone Special 1800890320
Würth Engine Sealing Compound Silicone Special 1800890320
£11.99/ea 		£0.00
£11.99/ea £0.00

Description

Professional-Grade Silicone for Engine and Vehicle Sealing Applications

Würth Engine Sealing Compound Silicone Special 180 is a high-quality, oxime-curing silicone rubber sealant developed for sealing engines, transmissions, and bodywork components. It creates a durable, flexible seal that maintains integrity even under heat, vibration, and exposure to oils or fuels.

Cold-Vulcanising , Permanently Elastic Seal

The compound cures at room temperature to form a cold-vulcanised silicone rubber that retains flexibility and elasticity over time. It effectively bridges surface unevenness and provides a long-term, leak-free joint seal, even under mechanical stress.

Reliable Long-Term Sealing Performance

Thanks to its excellent chemical and temperature resistance, the sealant remains stable in contact with engine oil, coolant, and hydraulic fluids. It withstands temperatures up to 150°C in continuous operation and short-term peaks of 180°C, making it ideal for use in engine and powertrain environments.

Clean Application and Controlled Curing

The compound does not run, sag, or thread-pull during application, ensuring neat bead placement on both horizontal and vertical surfaces. It achieves skin formation within 8-15 minutes, depending on ambient conditions, and cures at approximately 1.5mm per day under standard humidity and temperature.

High Flexibility and Vibration Resistance

Once cured, the silicone remains permanently elastic with a Shore A hardness of 18and elongation at break of 300%,. allowing it to absorb continuous movement and vibration. It maintains up to 25% movement absorption at temperatures up to 150°C, and 18% above that range, ensuring long-lasting joint stability.

Versatile Application Range

Suitable for a wide range of vehicle and machinery sealing applications including:

  • Engines, cylinder heads, crankcases, oil pans, and radiators.
  • Transmissions, differentials, and housing assemblies.
  • Bodywork joints, lighting housings, weld seams, and indicator casings.

More Information

Application Instructions

  1. Ensure the surfaces are clean, dry, and free from oil, grease, and dust.
  2. Apply a uniform bead of the sealant to one of the surfaces using a cartridge gun or nozzle.
  3. Assemble parts carefully, avoiding excessive compression of the joint.
  4. Allow to cure under ambient conditions; curing speed is approximately 1.5mm per day at 23°C and 50%RH.
  5. For optimal performance, allow the seal to fully cure before subjecting to operating pressures or high temperatures.

Usage Notes

  • Processing temperature: 5°C to 60°C.
  • Temperature resistance: -50°C to 150°C (short-term up to 180°C).
  • Store in a cool, dry area below 25°C.
  • Shelf life 18months from production when stored correctly.
  • Ensure adequate air circulation during curing; thicker layers will extend curing time.

Specifications

Chemical Basis: Oxime-curing silicone sealant

Colour: Transparent

Contents: 70 ml (100 g weight)

Density: 0.97 g/cm³ (at 20 °C)

Odour: Characteristic

Skin Formation Time: 8–15 min (23 °C, 50% RH)

Curing Rate: Approx. 1.5 mm/day (23 °C, 50% RH)

Shore A Hardness: 18

Elongation at Break: 300 %

Continuous Movement Absorption:

• Up to 150 °C: 25 %

• Above 150 °C: 18 %

Temperature Resistance: -50 °C to +150 °C (short-term +180 °C)

Processing Temperature: +5 °C to +60 °C

Adhesion: Excellent on metals, painted surfaces, glass, and plastics

Curing Mechanism: Oxime crosslinking (neutral system)

Shelf Life: 18 months (cool, dry storage below 25 °C)

Corrosion Protection: Yes (non-corrosive curing system)

Elasticity: Permanently elastic after curing

Documents