Can you sand decorators caulk? The answer isn’t as straightforward as you might think

Close up of caulking gun on tiles
(Image credit: Getty Images)

Can you sand decorators caulk? The first question that springs to mind is why would you need to sand it? Decorator’s caulk – also known as painters caulk – is a flexible filler that is used to fill small gaps to stop water ingress, dust and draughts. Its makeup means that you need to work with it fast to get the finish you need. 

A good use of decorators caulk is when painting skirting boards, doors or windows. These rarely sit flush with the wall leaving small visible gaps that need to be dealt with to get a pristine high-quality finish. Caulking will eliminate these gaps and when treated properly,will leave a smooth finish that won’t need sanding and be ready for painting. 

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.