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SKU: X0-ZB2C-P12X

Bona Mix & Fill Plus Wood Floor Gap Filler 5L

£122.69
Including VAT, all orders have free shipping
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Free Next Working Day Delivery

  • Free Next Day Delivery on all orders (Please note that occasional delays may occur due to courier disruptions or stock availability).
  • Orders placed before 3 pm will be dispatched on the same working day for delivery the next working day.
  • Orders placed after 3 pm on Fridays will be dispatched first thing on Monday for delivery on Tuesday.
  • Small items are shipped via Royal Mail with 24-hour tracked delivery.
  • Large and oversized items are shipped via FedEx with next day tracked delivery.
  • Tracking information will be provided via email or text once your order has been dispatched.
  • We deliver to mainland UK only.
  • Orders placed for delivery on a bank holiday or during our closure period will be dispatched on the next standard working day.
  • Exclusions: Levelling compounds are not eligible for delivery

Click & Collect

  • Place your order online.
  • Select the click & collect option at the checkout.
  • You will receive email confirmation that your order is ready to collect (generally within 5 minutes)

Opening hours: 7am - 4pm Mon-Fri

Collection address:

Wiltshire Wood Flooring Supplies

Unit 1

Penton Business Park

Stephenson Road

Churchfields Industrial Estate

Salisbury

SP2 7NP

Bona Mix & Fill Plus is a professional waterborne wood floor gap filler with a high solids content, designed to be mixed with fine sanding dust from the floor being restored.

The resulting filler closely matches the natural colour of the timber and can be used to fill joints and minor cavities up to approximately 3mm wide. Its high filling capacity and short drying time mean that, under normal conditions, a single application is often sufficient.

Why Choose Bona Mix & Fill Plus?

  • Suitable for gaps up to approximately 3mm wide
  • High filling capacity
  • Fast drying
  • Mixes with sanding dust for a natural colour match
  • Usually requires only one application
  • Easy to sand once dry
  • Anti-corrosive waterborne formulation
  • Compatible with Bona lacquer and oil systems

Recommended Wood Types

Bona Mix & Fill Plus is particularly recommended for light to medium-coloured timber species, including:

  • Oak
  • Beech
  • Pine
  • Maple
  • Other similar light to medium-coloured wood species

For the best colour match:
Use fine, clean sanding dust collected from the same floor being treated. Mix until a smooth, easily spreadable consistency is achieved.

Technical Information

Product type Waterborne acrylate dispersion gap filler
Pack size 5 litres
Maximum gap width Up to approximately 3mm
Mixing ratio Approximately 10–15% wood dust to 85–90% Mix & Fill Plus
Solids content Approximately 38%
Application rate Approximately 8–12m² per litre
Approximate coverage Approximately 40–60m² per 5L container
Between applications Approximately 15–30 minutes
Ready for sanding Approximately 30–60 minutes
Ready for lacquer or oil Approximately 1–2 hours
Application tool Stainless steel flat-bladed trowel
Shelf life Approximately 12 months when stored correctly and unopened
Storage Store between 5°C and 30°C and protect from frost

Coverage and drying times are approximate and will vary according to the number, depth and width of the gaps, as well as temperature and humidity. Gaps wider than 2mm should be allowed to dry overnight.

Recommended Application Tool

Apply Bona Mix & Fill Plus using a Bona flat-bladed stainless steel trowel to work the filler evenly into the joints and cavities.

Preparation

  • Ensure the floor is dry, acclimatised and free from wax, dirt and contamination.
  • Sand the floor back to bare timber using 60–80 grit before the final sanding cut.
  • Use only fine, clean sanding dust from the floor being treated.
  • Keep the room and product temperature above 13°C during application and drying.
  • For best results, work at approximately 18–22°C and 40–60% relative humidity.

Application

  1. Shake the container thoroughly before use.
  2. Mix Bona Mix & Fill Plus with fine, clean sanding dust until a smooth, easily spreadable consistency is achieved.
  3. Apply the mixture evenly across the floor using a stainless steel flat-bladed trowel.
  4. Work the filler firmly into the joints and avoid leaving heavy streaks or accumulations on the surface.
  5. Allow the filler to dry and apply a second treatment where required.
  6. Once dry, sand away excess filler using approximately 100 grit abrasive.
  7. Apply the selected Bona lacquer or oil system in accordance with its instructions.

Important: Bona advises that gaps within plank or end-grain floors are not normally filled because seasonal timber movement may cause the dried filler to break loose. Large or moving gaps should be assessed before treatment.

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