Sometimes it so happens that we cannot gain access to a part of the mould with the brush in order to laminate. These areas will have to be cast together, that is, pouring liquid resin into them. These areas should not be structural, as they are fragile because they don’t have fibreglass. The outside of the juncture is sealed with epoxy plasticine or polyester, or any other waterless material, to prevent the resin from spilling out.