Trusted and praised by customers ★★★★★
Need Help? support@tradesuppliesuk.co.uk
Enjoy Free Shipping on Orders Above £80
BUY MORE SAVE MORE | UpTo 15% OFF

  • Next day delivery available

  • Best Price Promise

  • Five-Star Rated ★★★★★

  • Free and Fast Technical Advice
Quality Image 1
Quality Image 2
Quality Image 3
Quality Image 4

Sadolin Polyurethane Extra Durable Varnish Clear Finish 5.0 kg

Manufactured by Sadolin

Why Choose Our Products?

Icon

Combines the easy use of a water-borne varnish with the strength of a polyurethane system.

Icon

It provides a beautiful non-yellowing finish at your preferred sheen level.

Icon

Designed for interior projects where toughness and clarity are equally important.

  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • iDEAL
  • Maestro
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Sadolin Polyurethane Extra Durable Varnish is a premium water-borne varnish that delivers a tough, long-lasting protective finish for interior wood surfaces. Formulated with advanced polymer technology, it offers exceptional resistance to stains, spills, and everyday wear while maintaining a beautiful natural appearance. The non-yellowing formula ensures that wood retains its original tone, providing a crystal-clear finish that enhances the natural grain without discolouration over time.

Unlike traditional solvent-based varnishes, this water-borne system is low in odour, quick drying, and easy to clean, making it ideal for busy homes or commercial interiors. Whether applied in Clear Gloss, Clear Satin, or Clear Matt, the varnish creates a smooth, hard-wearing surface that is easy to maintain and resistant to scratches, scuffs, and household chemicals. Its fast recoat time allows two coats to be applied daily, saving project time.

Key Features & Benefits

  • It is extremely tough and durable, combining polymer chemistry for a hard-wearing finish resistant to stains, spills, and abrasion.

  • Quick drying: Touch dry in 1–2 hours and ready for a second coat in 2–4 hours

  • Low odour & water-borne: Easier and safer to use indoors with simple soap-and-water clean-up.

  • Non-yellowing formula: Maintains the natural colour and clarity of wood over time.

  • There is a choice of finishes: Clear Gloss, Clear Satin, and Clear Matt, to suit various interior styles.

  • Easy application: Smooth flow for effortless brush application and even coverage

Ideal Uses

  • Interior doors, skirting boards, and window frames

  • Wooden furniture, tables, and shelving

  • Staircases, banisters, and wooden panelling

  • Kitchen units and interior joinery require a tough, easy-clean finish

Sizes & Coverage

  • Pack sizes: 1 L, 2.5 L, 5L

  • Coverage: Approx. 12 m² per litre per coat (depending on wood type and porosity)

  • Coats required: 2 coats for best protection

Surface Preparation
Ensure all wood surfaces are clean, dry, and free from grease, wax, polish, and previous coatings that may prevent adhesion. Lightly sand bare wood toward the grain and remove all sanding dust. For previously varnished surfaces, sand to create a key for the new finish.

Stirring
Stir the varnish thoroughly before and during use to ensure an even consistency and sheen. Do not shake the container, which can create bubbles in the finish.

Application Method
Apply with a high-quality synthetic bristle brush, working toward the grain for a smooth, even coat. Avoid over-brushing to reduce brush marks.

First Coat
Apply a thin, even layer and allow it to dry for 1–2 hours. Before applying the next coat, check for any raised grain or imperfections and lightly sand with fine-grade sandpaper (e.g., 240 grit).

Second Coat
Apply a second thin coat after 2–4 hours for optimum durability and clarity. Two coats are generally sufficient, but a third coat can be applied to high-wear areas if desired.

Drying & Curing
Touch dry in 1–2 hours and recoat in 2–4 hours. Avoid heavy use or placing objects on the surface for at least 24 hours to allow the varnish to harden fully.

Clean-Up
Clean brushes and tools immediately after use with warm, soapy water. Do not allow varnish to dry on equipment.

Tips for Best Results

  • Work in a well-ventilated room at temperatures between 10 and 25 °C.
  • Avoid applying in direct sunlight or near heat sources to prevent premature drying.
  • Always test on a small, inconspicuous area to confirm colour and sheen before complete application.
COVERAGE CALCULATOR
MEASURE YOUR DIMENSIONS

Frequently Asked Questions

What surfaces can Sadolin Polyurethane Extra Durable Varnish be used on?
It provides a strong and protective finish for interior wood surfaces such as doors, furniture, skirting boards, tables, and wooden floors.
Is this varnish suitable for outdoor use?
No, this product is designed for interior use only. For exterior projects, use a Sadolin exterior wood protection range.
How many coats are recommended for best results?
Two coats are generally sufficient for most surfaces. A third coat can be applied in high-traffic or high-wear areas for added durability.
How long does it take to dry between coats?
The varnish is touch-dry in 1–2 hours and can be recoated under normal indoor conditions after 2–4 hours.
Does the varnish yellow over time?
No, it is a non-yellowing water-borne formula, ensuring a clear, long-lasting finish that keeps wood looking natural.
Can I apply this varnish over previously varnished wood?
Yes, but lightly sand the surface to remove gloss and create a key for proper adhesion before applying.
Is sanding required between coats?
After the first coat, light sanding with fine-grade sandpaper is recommended to remove raised grain and achieve a smooth final finish.
How should I apply the varnish for the best finish?
Use a high-quality synthetic bristle brush and apply thin, even coats along the direction of the wood grain to avoid brush marks.
What sheen levels are available?
It is available in Clear Gloss, Clear Satin, and Clear Matt to suit various interior décor styles.
How do I clean my brushes after use?
Clean brushes immediately with warm, soapy water while the varnish is still wet to prevent drying on the bristles.
Can I tint or colour this varnish?
No, it is designed as a clear finish and should not be tinted. For coloured finishes, use a wood stain before applying the varnish.
Is it safe to use in a home environment?
Yes, the water-based formulation has low odour and is quick-drying, making it safe and convenient for indoor projects.
How long should I wait before using the surface after application?
To ensure complete curing, allow at least 24 hours after the final coat before placing objects or subjecting the surface to regular use.

Select Variant and Order

£59.99 (inc VAT)
Tax included Shipping calculated at checkout.
Our Experts Recommended

Delivery within 24 to 48 hours
Size
Colour
Next Day delivery is available for orders placed before 3 pm.
*subject to stock levels at the time of your order.
loading

  • Free & fast delivery

    Enjoy Free Shipping on Orders Above £80

  • Customer service

    We are available from Monday to Friday to answer your questions.

  • Secure Checkout

    Fast & Secure checkout, encrypted by SSL.