Good morning,

I'm looking to do a cast of a helmet, this is going to be my first attempt at this so learning from YouTube and other tutorials.

I know there is a stickied supplier list at the top but struggling to find equivalent UK suppliers of smooth cast. Also what would I use to make the rubber sleeve?

Also any extra tips would be great as it's quite expensive stuff so would rather not mess up at all

Sorry for the newbie question and thanks!