Yes, some types of flexible fillers can be sanded.
While not all flexible fillers are designed for sanding, many modern flexible acrylic fillers, like the one mentioned in the reference, are formulated to be sanded once cured.
Understanding Flexible Fillers
Flexible fillers are typically used in areas subject to movement, such as around door frames, window frames, skirting boards, and coving. Their flexibility helps prevent cracking and crumbling as the building materials expand and contract.
Sanding Specific Flexible Fillers
According to the provided reference:
EVO-STIK Flexible Decorators Filler is a flexible acrylic filler ideal for filling in fine cracks and cavities around the home. It can be sanded, painted or papered over, and does not crack or crumble. It can be used to seal low movement gaps around window and door frames, skirting boards and coving.
This clearly indicates that EVO-STIK Flexible Decorators Filler can be sanded. This property makes it versatile for preparation work before painting or wallpapering, allowing for a smooth, seamless finish.
Why Sand Flexible Filler?
Sanding is often necessary to:
- Achieve a perfectly smooth surface flush with the surrounding material.
- Remove any excess filler that squeezed out during application.
- Prepare the surface for subsequent finishes like paint or wallpaper, ensuring better adhesion and a professional look.
Key Features of Sandable Flexible Fillers
Look for products that explicitly state they are sandable. Based on the reference and common characteristics of such fillers, features may include:
- Flexibility: Accommodates movement without cracking.
- Sandable: Can be smoothed down after curing.
- Paintable/Paperable: Accepts decorative finishes.
- Durability: Does not crack or crumble once set.
| Feature | Benefit |
|---|---|
| Flexible | Prevents cracks in dynamic areas |
| Sandable | Allows for a smooth finish |
| Paintable/Paperable | Ready for decoration |
| Durable | Long-lasting repair |
Important Note: Always check the manufacturer's instructions on the specific product you are using, as curing times and sandability can vary between different types and brands of flexible fillers.
