The Primary Mini Shoe Seal (MSH) is specially designed to be used with floating internal roofs where the rim space is small. This seal has the same high quality of durability and sealing ability to the vapours as the primary mechanical scissor shoe seal, but is designed to work in narrow spaces between the wall of the tank and the floating roof. The innovative feature of this seal is the suspended mounting of the mini shoe, which is assembled to the side wall of the roof. This type of seal is adaptable to spaces as small as 2″, maintaining its sealing capacity.