SikaSeal One Hour is a white, paintable sealing caulk from Sika’s everyday DIY range, aimed at the same jobs you might use a decorator’s caulk for, tidying gaps around skirting boards, architraves and window frames. The “one hour” angle is about reducing the waiting time before you can get on with painting, which matters when you are filling lots of small joints and want a neater finish without leaving it overnight.

Who is this caulk best for?

It suits indoor touch-ups where movement is minimal and you want a clean, filled line rather than a flexible silicone seal. Use it to hide hairline cracks and small gaps before decorating, then paint over once it has skinned and cured enough to take a coat.

  • 300ml cartridge, fits a standard sealant gun for controlled application
  • White, paintable finish, intended to blend in after overpainting
  • Faster overpaint time, useful for quick room refreshes and snagging lists