Choosing the Right Fillers & Decorators Caulk
At County Building Supplies, we supply fillers and decorators caulk for professional painters, decorators, builders and DIY customers. Whether you're repairing cracks in plaster, filling holes in woodwork or sealing gaps around skirting boards, choosing the right product helps create a smooth, professional-looking finish before painting.
Our range includes Filltite Fill & Finish fillers, Ronseal wood fillers and Soudal decorators caulk for a variety of interior and exterior applications.
Choosing the Right Filler for Your Project
Different fillers are designed for different surfaces and repair requirements:
- Interior fillers: Suitable for repairing compatible plaster and wall surfaces, including small holes, cracks and imperfections before decorating.
- Fine surface fillers: Ideal for smoothing minor surface imperfections and preparing suitable walls for painting.
- Rapid-drying fillers: Useful for decorating projects where shorter drying times are required.
- Masonry repair fillers: Designed for suitable repairs to masonry surfaces, including compatible brickwork and concrete.
- Wood fillers: Used to repair suitable timber surfaces, including doors, skirting boards and window frames.
Always check the product's recommended surfaces, maximum filling depth and drying time before application.
What's the Difference Between Filler and Decorators Caulk?
Although both products are used during decorating, they serve different purposes.
Filler is generally used to repair holes, cracks and uneven surfaces before sanding and painting. Once dry, suitable fillers can be sanded to create a smooth finish.
Decorators caulk is a flexible sealant commonly used to fill small gaps around skirting boards, architraves, door frames and other interior joints. Many decorators caulks can be painted once sufficiently cured.
For joints exposed to water or significant movement, a specialist sealant may be more appropriate.
How to Apply Filler Before Painting
For the best results, remove loose material, dust and grease before applying filler. Use a suitable filling knife to press the product into the damaged area and smooth the surface.
Allow the filler to dry according to the manufacturer's instructions before sanding, cleaning and applying the recommended primer or paint.
Deeper repairs may require multiple applications, depending on the filler specification.
Using Decorators Caulk Around Skirting Boards
Decorators caulk is commonly used to create a neat finish where skirting boards, architraves and other trim meet walls.
Apply the caulk to clean, dry surfaces using a suitable cartridge gun, then smooth the bead according to the manufacturer's instructions. Allow sufficient drying or curing time before painting.
County stocks Soudal Decorators Caulk and Soudal Trade Flexible Painters Caulk in selected cartridge sizes.
Need Advice?
Not sure which filler or caulk is suitable for your project? Visit your local County Building Supplies branch or contact our team for product information and availability.
Frequently Asked Questions – Fillers & Caulk
What's the difference between filler and caulk?
Filler is generally used to repair holes, cracks and surface imperfections, while decorators caulk is used to seal small gaps and joints where some flexibility may be required.
What is the best filler for cracks in plaster walls?
A suitable interior wall filler is commonly used for minor cracks in plaster. For very fine imperfections, a fine surface filler may be appropriate. Recurring or structural cracks should be investigated before decorating.
Can you paint over decorators caulk?
Most decorators caulks are designed to be painted, but drying times and paint compatibility vary. Always check the manufacturer's instructions before applying paint.
Should I use filler or caulk around skirting boards?
Decorators caulk is generally used for small gaps between skirting boards and walls because it accommodates limited movement. Filler is more suitable for repairing holes and imperfections in the surrounding surface.
Can you sand decorators caulk?
Decorators caulk is not generally intended to be sanded like traditional filler. Smooth it during application and use a suitable sandable filler where a rigid, sanded finish is required.
How long does filler take to dry?
Drying time depends on the product, application depth, temperature and humidity. Rapid-drying fillers may allow earlier sanding or painting, but always follow the manufacturer's stated drying times.
What filler should I use for wood?
Use a wood filler suitable for the timber, repair location and intended finish. County stocks Ronseal High Performance Wood Filler in selected sizes and colours.
What brands of fillers and caulk does County stock?
County Building Supplies stocks selected Filltite Fill & Finish fillers, Ronseal wood fillers and Soudal decorators caulk. Availability may vary by branch.