The armor detail is sculpted onto the gypsum positive using an oil-based clay. Moldmakers then apply a thin coat of Rebound® 25 rubber. A thickness of 3/8'' (1cm) of Rebound® 25 silicone is brushed onto the sculpt. Plasti-Paste® is then applied on top of the cured Rebound® 25 to form a support shell and allowed to cure.