Ceresit CE43 WH Smoothing Compound is a white premixed powder supplied in a 5 kg package for interior surface preparation. It is formulated to level and fill small imperfections on walls and ceilings, creating a smooth, paint- and wallpaper-ready surface. The compound is intended for use on common mineral and plasterboard substrates when a fine finishing coat is required prior to decoration.
Advantages
The formulation provides good workability and sanding properties to achieve an even surface. Its white color helps ensure consistent paint tones and reduces the risk of underlying discoloration showing through light topcoats. The product sets to a stable, cohesive layer that can be overcoated with conventional interior paints and wallpapers when fully dry.
Suitable for
- Levelling small surface irregularities on interior walls and ceilings
- Filling hairline cracks and small holes before painting
- Final skim coats on plaster, cement, lime renders and gypsum boards
- Preparing surfaces prior to applying water-based or solvent-based paints and wallpapers
When it may not be suitable
This smoothing compound is intended for interior use only and is not formulated for external exposure or areas with continuous moisture. It is designed for minor to moderate surface correction and not for heavy structural repairs, deep voids, or substrates with active movement. For highly absorbent surfaces, priming or pre-treatment may be required to ensure proper adhesion and curing.
Key specifications
- Color: white
- Package size: 5 kg
- Intended use: interior wall and ceiling smoothing and filling
- Suitable substrates: plaster, cement render, gypsum boards and similar mineral surfaces
- Finish: fine, sandable surface ready for paint or wallpaper
How to use
Mix the powder with clean water following the manufacturer’s recommended ratio until a homogeneous, lump-free paste is obtained. Apply the compound with a steel or plastic trowel in thin layers, allowing each coat to dry before applying the next. For deeper imperfections, apply multiple thin layers rather than a single thick coat. Once dry, sand lightly to achieve the desired smoothness, remove dust and then proceed with priming or finishing coats according to the paint or wallpaper manufacturer’s instructions.
What to consider before purchase
- Intended location: interior use only
- Surface condition: suitable for minor to moderate imperfections, not for structural repairs
- Substrate compatibility: designed for mineral and gypsum-based surfaces—pre-treat highly absorbent or dusty substrates
- Required quantity: 5 kg package—estimate coverage based on layer thickness and surface area
Usage recommendations
Store the product in a dry place. Protect applied layers from drafts and frost while drying. Follow safety instructions on the packaging, wear suitable hand and eye protection when mixing and applying, and allow full curing before overcoating to ensure a stable finish.
