Gutter sealant

Does this stuff stick to damp surfaces?

https://www.toolstation.com/soudal-trade-roof-gutter-sealant/p34883

I have used this.

https://www.screwfix.com/p/bostik-roof-repair-compound-black-1kg/57518

Sticks to anything it touches, wet or dry. Fixed a gutter I had to seal.

You will need gloves and a brush, both with are a once use item. You will never ever be able to clean the brush.

Anytime i’ve used this stuff i clean the join beforehand with IPA, or even disc brake cleaner, and do it on a dry day.

The conservatory guys told me to use acrypol, they used it – clean area, try to dry area, apply.

CT1 claims to work in the wet and is a lot more useful for other jobs.

The non setting bitumen (?) stuff is horrifically easy to make a mess with, but does work.

I generally split the joint, use a cloth to clean and roughly dry it and apply, rather than just seal the gap.

I like to think the reason I don’t get called back is because it worked!