
About the product
Aguaplast Exterior is Beissier's high-performance powdered filler formulated for skimming, repairing, and smoothing exterior and interior surfaces — facades, balconies, cornices, walls, and cement, mortar, and concrete rendering. It provides a fine, hard, and weather-resistant finish, ready for any facade paint or exterior coating. It mixes with water, has a long working time, and excellent adhesion to mineral substrates. Available in a 6 kg format.
What jobs and surfaces is it ideal for?
- ✓ Skimming and smoothing cement, mortar, and concrete facades
- ✓ Repairing balconies, cornices, and areas damaged by weather
- ✓ Filling cracks, fissures, and chipping on exterior walls
- ✓ Regularizing substrates before painting facades or applying coatings
- ✓ Indoor use on cement, concrete, and mineral substrates
Why choose Aguaplast Exterior
- ✓ Formulated for exteriors — resists wet and dry cycles, rain, and temperature variations without cracking or peeling; it is not an interior filler applied outdoors
- ✓ Fine and hard finish — once cured, it provides a compact, hard, high-quality surface, ready for any facade paint, siloxane paint, or continuous coating
- ✓ High performance — professional filler — greater hardness and resistance than standard household fillers; Beissier's benchmark product for demanding outdoor construction and renovation projects
- ✓ Easy to sand — sands easily once dry to achieve a perfectly smooth finish before painting
- ✓ High yield — 6 kg — suitable format for medium-sized repairs and works; covers between 6 and 9 m² in a thin layer depending on the porosity of the substrate
Compatible substrates
How to prepare and apply — in 4 steps
- Prepare the substrate: clean, sound, dry, and free of dust, grease, and poorly adhered parts. For highly absorbent substrates, apply a penetrating primer beforehand.
- Prepare the mixture: add water to the powder according to the package instructions and mix until a homogeneous paste is formed. Prepare only the amount you will use.
- Apply with a trowel or spatula in uniform layers. Lightly moisten the substrate beforehand in hot conditions or on highly absorbent surfaces.
- Sand and paint: once completely dry, sand with 120–180 grit, remove dust, and apply the final finish.
Do not apply at temperatures below +5°C. Clean tools with water before setting.
Technical specifications
| Product type | High-performance powdered filler for exterior use |
| Use | Exterior and interior |
| Application | Trowel · Spatula |
| Application temperature | Minimum +5°C |
| Tool cleaning | Water (before setting) |
| Brand | Beissier / Aguaplast |
| Format | 6 kg |
Important limitations
Do not apply on walls with permanent dampness or active capillarity — address the cause first. Do not apply on poorly adhered paints or on plaster outdoors. Do not re-mix once setting has begun.



















