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Würth Vaku Hardener (Peroxide Hardener)

Würth Vaku Hardener (Peroxide Hardener)

24 in stock

Key Features

  • Specialised peroxide-based hardener formulated for use with Würth polyester fillers VAKU 20, VAKU 30, VAKU 40, and VAKU 80.
  • Provides reliable and consistent curing when mixed at the recommended ratio with Vaku fillers.
  • Red-coloured paste for easy visual confirmation of proper mixing.
  • Stable, pasty consistency with a homogenous texture for precise dosing and uniform curing.
  • Resistant to high-temperatures up to 80°C once cured.
£9.99 GBP
£9.99 GBP
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Product Product subtotal Quantity Price Product subtotal
Würth Vaku Hardener (Peroxide Hardener)
Würth Vaku Hardener (Peroxide Hardener)
Würth Vaku Hardener (Peroxide Hardener)
£9.99/ea 		£0.00
£9.99/ea £0.00

Description

Optimised Hardener for Vaku Polyester Filler Systems

The Würth Vaku Hardener is a peroxide paste hardener developed specifically for use with the Vaku filler range (20, 30, 40, 80). It ensures reliable curing performance, enabling fillers to achieve their designed working life, sanding properties, and durability.

Reliable and Easy Mixing

The product’s red pigmentation provides clear visual feedback during mixing, ensuring even distribution throughout the filler. With a pasty consistency and viscosity of 10,000 mPas (at 20 °C), it blends smoothly into polyester resins without separation, clumping, or uneven curing.

Durability and Performance

When used at the correct ratio, the Vaku Hardener enables polyester fillers to reach optimum strength, elasticity, and sanding behaviour. Once cured, the resulting repairs are resistant to loads and temperatures up to 80 °C, making it suitable for a wide variety of applications in automotive, marine, metal, and woodworking sectors.

Part of the Complete Vaku Repair System

The Vaku Hardener is designed to complement Würth’s range of polyester-based fillers and resins, ensuring compatibility, safety, and consistent performance. It is suitable for both professional workshops and industrial repair environments.

More Information

Application Instructions

  1. Refer to the technical data sheet of the specific Vaku filler (20, 30, 40, or 80) being used.
  2. Mix the Vaku Hardener into the filler at the specified ratio (typically 2% by weight).
  3. Blend thoroughly until a uniform colour is achieved.
  4. Apply the mixed filler immediately, observing the specified working life.
  5. Allow to cure before sanding, machining, or painting as per the filler's instructions.

Usage Notes

  • Always follow the recommended mixing ratio to avoid curing defects.
  • Store in a cool, dry place at room temperature, away from direct sunlight and ignition sources.
  • Use only with Vaku polyester filler systems - not intended for use with non-compatible resins.
  • Observe standard safety guidelines when handling peroxide-based hardeners.

Specifications

Product type: Peroxide paste hardener

Application: Hardener for Würth Vaku 20–80 polyester fillers

Weight of content: 40 g

Colour: Red

Smell/Fragrance: Characteristic

Density: 1.1 g/cm³ (at 20 °C)

pH value: Slightly acidic

Viscosity/Consistency: Pasty

Viscosity: 10,000 mPas (at 20 °C)

Water-soluble: No

Max. temperature resistance (cured system): 80 °C

Documents

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