Everbuild Caulk Mastic (310ml, White) is a flexible, paintable decorative caulk for filling and sealing internal gaps, cracks, and joints around skirting boards, architraves, coving, and window frames. It bridges the gap between decorating and sealing — applied before painting, it provides a smooth, professional finish that accepts emulsion and gloss paints once cured.

Water-based and low-odour, it is easy to apply and tool, and cleans up with water before curing. Ideal for decorators and tradespeople who need a reliable, fast-finishing caulk for interior joinery and plasterwork.

• Size: 310ml cartridge
• Colour: White
• Type: Decorative caulk mastic
• Suitable for: Skirting boards, architraves, coving, window frames, internal joints
• Application: Standard 310ml cartridge gun
• Use: Interior gap filling and sealing prior to decoration
• Properties: Paintable, flexible, water-based, low odour

Also available in Brown and Magnolia. Browse the full Sika Everbuild range.