Repairing parquet floors and laminate — complete guide with hard wax filler (2026)

Scratches on the parquet floor, a dent from a moved piece of furniture, or a mark from a dropped pair of scissors — floor damage is unavoidable. With hard wax filler and a melter you can repair the damage in 30 seconds for a fraction of what a tradesperson costs. This guide walks through the process step by step.

What is hard wax filler?

Hard wax filler is a natural-wax-based repair medium for deeper damage in wood materials. It differs from standard wax in that it:

• Melts at around 80°C (not in your fingers like Baowachs)
• Hardens in 10-20 seconds on cooling
• Much more wear-resistant than soft wax — withstands daily floor wear
• 50+ wood colours for precise matching

The perfect choice for deep damage (>2 mm) in parquet, laminate and furniture. For smaller surface scratches in mouldings, use Baowachs instead (see our guide to filling nail holes).

Common damage hard wax filler solves

• Deep scratches from dragged furniture or objects pulled across the floor
• Dents and impressions from heavy furniture or dropped tools
• Cracks and splinters along edges
• Holes from nails or screws after removed fittings
• Tread damage on thresholds or passageways
• Pet claw marks in parquet

Tools you need

Schellacksmältare HS (for hard wax filler + Schellack)

Battery-powered melter that heats the hard wax filler to melting point in 30-60 seconds. The tip is shaped so you can easily apply the wax into narrow scratches and corners.

Schellacksmältarestation (alternative)

For professional use — a fixed melter station with adjustable temperature. Longer work sessions without battery changes.

Hard wax filler sticks

A mixed box with several colours so you have the right shade for different floors. For one-off projects with a known colour, it is enough to buy a single stick in the right shade.

Accessories

• Plastic spatula or hobby knife to scrape off excess
• Fine sandpaper P240-P320 for the final finish
• Cleaning cloth + painter's cleaner for pre-cleaning

Complete kit — Reparationsväska Trä

If you want everything ready from the start:

Or the larger professional version:

Contains the melter + several hard wax filler colours + Baowachs + tools + spirit-based stain for wood grain. Lasts for a decade of repairs.

Step by step — how to repair

1. Cleaning and preparation

• Clean the damage thoroughly — dust, grease or loose splinters must be removed
• Use a damp cloth, then dry until completely dry
• Remove any loose flakes with a spatula

2. Choose the right colour

Hard wax filler comes in:

• Light floors: Birch, light spruce, light ash
• Mid-tone: Brown oak, elm, light cherry
• Dark: Medium teak, red-brown mahogany, dark walnut
• Special colours: Black, white

For a perfect match — blend two colours if needed.

3. Melt the hard wax filler

• Switch on the melter and let it warm up for 30-60 seconds
• Hold the melter against the hard wax filler stick so the wax melts
• Drip the melted wax straight into the damage — fill so it stands slightly above the surface

Be generous with the wax — better too much than too little. It is quick to scrape off excess.

4. Scrape off the excess

Before the wax hardens (you have 30-60 seconds):

• Use a plastic spatula or a blunt knife
• Scrape flush with the floor surface
• An angle of 30-45° works best
• Work along the grain of the floor to blend into the pattern

5. Sand lightly

Once the wax has hardened (after 1-2 minutes):

• Sand lightly with P240 or P320 across the area
• This evens out the finish and removes any micro residue
• Sand along the grain — not across

6. Polish and check

Wipe over the area with a dry microfibre cloth. Check the result in different light:

• From above — the colour should blend in
• Raking light — any unevenness becomes visible (sand more if needed)

7. Recreate the wood grain (optional)

For repairs in visible areas where a dark surface stands out: draw on the wood grain with a spirit-based stain pen (Flex-Pen). Draw thin lines along the grain so the repair blends in more.

Colour matching — the most important step

Mismatched colour is the most common reason DIY repairs are visible. Invest the time:

Method 1: Test piece

Melt a little wax of your intended colour on an underside (e.g. inside a wardrobe). Wait 5 minutes, check against the floor in daylight.

Method 2: Colour chart

Order a hard wax filler colour chart from Ernst P if you do not have one — it shows all 50+ shades with RAL/NCS codes.

Method 3: Blending

For exact mid-tones — mix two colours:

• Melt the first colour first
• Add a little of the second colour
• Mix gently with the tip
• Apply immediately

Common mistakes

Mistake 1: Wrong colour

You pick the nearest colour without checking. Result: the repair is visible from the other side of the room.

Fix: Colour-match carefully before applying. Test piece on an underside.

Mistake 2: Too little hard wax filler

You only partly fill. When the wax cools it contracts and you end up with a pit.

Fix: Fill generously over the surface. Scrape off the excess instead.

Mistake 3: Scraping too late

You wait 5 minutes and the wax is already hard. You cannot scrape it flush — you will have to sand instead.

Fix: Scrape within 30-60 seconds while the wax is still soft.

Mistake 4: Cross-grain sanding

You sand across the grain of the floor. Scratches from the sandpaper become visible.

Fix: Always sand along the grain with P240 or finer.

Mistake 5: Skipping the Flex-Pen finish on a visible floor

The hard wax filler repair is uniformly single-coloured. On floors where you can see clear wood grain, a repair can look "too flat".

Fix: Use a Flex-Pen stain pen to draw on wood grain that matches the surrounding floor.

Cost calculation — DIY vs professional

Per repair

For a complete kit

The ROI on a melter + kit is recouped on the very first real repair.

When is hard wax filler not enough?

For very large damage (over 5 cm long or deep holes through the whole parquet board):

• Replace the entire parquet board — contact a floor layer
• Sand the whole floor and re-oil — see our DIY parquet sanding guide

Hard wax filler is for medium-sized damage (1-50 mm). For anything larger, move to heavier solutions.

Maintenance after repair

Hard wax filler is wear-resistant and maintenance-free under normal use:

• Withstands normal floor washing (water + neutral cleaner)
• Withstands pets and children
• Withstands daily wear from moving furniture (carefully)

If a repair comes loose after many years (rare):

• Pick off the remaining wax
• Dust clean
• Apply fresh hard wax filler

Specialist products

Schellack 1 kg (for large repair projects)

For professional workshops and furniture restorers, pure Schellack sticks are available in a 1 kg format. Lower unit price for high volumes.

Schellack Lemon 1 Kg

Clear/light Schellack for traditional furniture polish — use instead of hard wax filler for valuable antique furniture.

Related

• Filling nail holes in mouldings with Baowachs — for smaller surface repairs
• DIY parquet sanding — if the whole floor needs sanding
• Oiling a worktop — how often? — after the floor repair
• See the full repair range

Sources

Last updated 2026-04-18.

1. Ernst P AB — Hard wax filler product and application data (our own testing since its introduction in 2015).
2. Trähantverk Sverige — Industry guidance for parquet repair and wax techniques.
3. GBR (Golvbranschens Riksorganisation) — Standard for parquet maintenance and repair. gbr.se