Painting caulk: 6 practical pointers for the perfect finish

Close up of a paintbrush cutting in against a window frame
(Image credit: Getty Images)

Painting caulk is all about perfecting your technique – as well as making sure you are using the correct sealant before you start.

While similar in appearance and finish, silicone is definitely not designed to be painted while the decorators caulk, sometimes known as 'painters' caulk', is. Both sealant and decorators caulk are flexible sealants however, so make sure you are using the right product before you start caulking.

The great thing about decorator's caulk is that it will give you more flexibility when fitting any built-in woodwork. Using it to fill in any gaps and then painting it afterwards will leave you with a smooth finish and colour match to the surrounding areas.

Here we answer a host of common questions on how to paint caulk to get a seamless, professional finish. 

Steve Jenkins

Steve Jenkins is a freelance content creator with over two decades of experience working in digital and print and was previously the DIY content editor for Homebuilding & Renovating. 

He is a keen DIYer with over 20 years of experience in transforming and renovating the many homes he has lived in. He specialises in painting and decorating, but has a wide range of skills gleaned from working in the building trade for around 10 years and spending time at night school learning how to plaster and plumb.

He has fitted kitchens, tiled bathrooms and kitchens, laid many floors, built partition walls, plastered walls, plumbed in bathrooms, worked on loft conversions and much more. And when he's not sure how to tackle a DIY project he has a wide network of friends – including plumbers, gas engineers, tilers, carpenters, painters and decorators, electricians and builders – in the trade to call upon.