need a caulk for exterior use

[happyhero]

Hi I am struggling to find something for caulking outside, what can I use. I basically live in a mock Tudor house and need some caulk to caulk the gaps between the render and the timber planks. Is there a good product easily available for this?

All I keep finding is internal decorators caulk so any help appreciated.

 

[Pigeon85]

I normally use painters mate, there are many others on the market. Go into your local paint or hardware store they will point you in the right direction.

 

[misterhelpful]

There are many caulks that can be used outside but they do tend to become brittle and crack after a while, especially if exposed to a lot of direct sunlight/heat.

You would probably be better served using a good quality exterior acrylic frame sealant which is designed for the type of joints you describe and is overpaintable. Don't use a silicone based frame sealant as they are not overpaintable.