Jotun Block Filler, 18L, Used for Filling Porous Concrete & Blockwork Walls

It is suitable for interior and exterior masonry surfaces, including concrete, brick, cement blocks, and plaster. It’s formulated to provide a smooth, paint-ready surface on porous substrates.

Ensure the surface is clean, dry and sound. Remove loose material, oil, dust and contaminants. For highly porous surfaces, lightly dampen the substrate to improve workability, then apply the filler once the surface is damp but not wet.

The product is ready to use; stir if necessary to restore consistency. Apply in thin, even coats with a stainless steel trowel or putty knife, working from the bottom up. Allow each coat to dry before applying the next.

Apply in thin coats to achieve a smooth finish. Drying time depends on temperature, humidity and surface porosity; typical touch-dry occurs within a few hours and full cure is usually around 24 hours. Recoat when the surface is dry to the touch.

Volume: 18 liters. Type: water-based filler. Color: light gray (shade may vary by batch). Coverage varies with surface porosity and application method. Designed to smooth rough masonry surfaces and provide a solid base for topcoats.

The product is intended for indoor use in appropriate environments. Wear protective gloves and eye protection during application. Use in a well-ventilated area and keep away from children and pets. Follow the label safety instructions and dispose of empty containers according to local regulations.

Clean tools with water while the filler is still wet. Protect surrounding areas from splashes. If you need a smoother finish later, you can lightly sand the cured filler before applying a topcoat.

If you need smaller volumes or similar smoothing performance, consider Jotun Block Filler 5LTR and Jotun Block Filler 9LTR, both available on Fepy. They offer comparable performance with different volumes to suit your project size. 5LTR: https://fepy.com/product/jotun-block-filler-5ltr; 9LTR: https://fepy.com/product/jotun-block-filler-9ltr; 18LTR (your product): https://fepy.com/product/jotun-block-filler-18ltr.

Ideal for smoothing rough masonry surfaces prior to painting, refurbishments, and new builds in both interior and exterior applications. It helps create a uniform substrate for topcoats and primers.

Store in a cool, dry place away from direct sunlight and heat sources. Keep the container tightly closed when not in use. Refer to the label for shelf-life details and avoid freezing.

Yes, it is designed to provide an even, stable substrate for subsequent Jotun coatings and primers. Ensure the filler is fully dry before applying topcoats and test compatibility on a small area if using non-Jotun products.