Knauf Fugenfuller Lightweight Joint Filler – 5 kg

Knauf Fugenfuller Lightweight is a high-quality gypsum-based joint filler, specially designed for reliable filling of joints during drywall installation. Its fine structure and improved formula allow easy and precise application, even over large surfaces. Suitable for both professional use and DIY projects, ensuring fast and clean results.

Applications:

• Filling joints between drywall panels with reinforcing tape

• Repairing small defects and surface irregularities

• Bonding gypsum profiles

• Interior use on drywall (GKL) and EPS insulation

Key features:

• Composition: gypsum, polymer additives, mineral fillers

• Color: white

• Form: powder

• Consumption: 0.25–1.2 kg/m² (depending on substrate)

• Mixing: 2.5 kg in ~1.9 L water

• Open time: 40–45 minutes

• Rapid strength gain after application

• Excellent adhesion to substrate

• Suitable for manual joint finishing with reinforcing tape

• High water retention

• Packaging: 5 kg

• Shelf life: 6 months

• Storage: in a dry, ventilated place, factory-sealed

Tools for application: trowel, spatula