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Würth

Würth Light Filler

Würth Light Filler

Key Features

  • Ready-to-use filler for fast and simple application.
  • Designed for filling joints, cracks, and holes in wall and ceiling surfaces.
  • Minimal shrinkage prevents cracking, even in deeper joints.
  • Paintable after 15-20 minutes with emulsion paints for quick finishing.
  • Easy to sand thanks to fine grain content (max 1% at 200 µm).
  • Versatile - suitable for walls, ceilings, gypsum plasterboard, acoustic panels, small surface unevenness, and even model construction.

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£10.99 GBP
£10.99 GBP
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Description

Quick and Reliable Repair

Würth Light Filler is a pasty, acrylate-based filler designed for fast and effective filling of cracks, joints, and holes in wall and ceiling surfaces. Ready-to-use in a 310ml cartridge, it is applied directly with a cartridge gun or spatula, saving time on preparation and application.

Minimal Shrinkage, No Cracking

Unlike traditional fillers, this light filler exhibits almost no shrinkage, preventing cracks from forming during curing. It provides a smooth, even surface that can easily be sanded for a professional finish.

Paintable and Easy to Work

The filler can be painted over within 15-20 minutes using emulsion paints, allowing fast progress on repair and renovation projects. It can be sanded with ease due to its fine particle size, ensuring seamless blending into surrounding surfaces.

Versatile Application

Designed for use on gypsum plasterboard, acoustic panels, and other interior surfaces, it can also be used to correct small uneven areas left behind after wallpaper removal. Its versatility even extends to model constuction, making it useful beyond standard building applications.

Technical Information

Specifications

Chemical Basis: Acrylate dispersion

Consistency: Pasty

Density: 0.57 g/cm³

Colour: White

Container: 310 ml cartridge

Viscosity/Grain Size: 200 µm, max. 1% grain content

Processing Temperature: +5 °C to +30 °C

Curing Time: 6–8 h (depending on layer thickness)

Recoatable/Paintable: Yes, after 15–20 minutes (with emulsion paints)

Max. Temperature Resistance (cured): -15 °C

Shelf Life: 12 months (at +5 °C to +25 °C)

Additional Tools: Cartridge gun (Art. prefix no. 0891…)

Documents

Application Instructions

  1. Ensure the substrate is clean, dry, dust-free, and free from grease.
  2. Cut the cartridge tip and insert into a cartridge gun.
  3. Apply filler directly into the joint, crack, or hole.
  4. Spread evenly with a spatula or filling knife.
  5. After 15-20 minutes, protruding filler in joints can be cut away with a utility knife.
  6. Allow to cure fully (6-8 hours, depending on layer thickness).
  7. Sand smooth if necessary, then overcoat with emulsion paint.

Usage Notes

  • Curing time is longer for thicker joints.
  • Type 4A filler can also be processed according to EN 13963 without joint tape.
  • Always refer to the technical data sheet for detailed processing guidlines.