once the mold has been prepared with approximately eight coats of wax it is ready for the application of the fiberglass reinforced plastic to create the unitary step first 18 to 20 millimeters of a white gel coat is sprayed onto the inside of the mold to provide the outside color of the finished unit then 150 millimeters of fiberglass reinforced plastic is sprayed onto the inside of the mold to create the essential step surface this also creates heat as described above during the application process workmen routinely roll out the bubbles by hand thus eliminating any air pockets and creating a smooth fiberglass surface this procedure is made possible because of the two step mold described above once the essential unitary step body 1 has been thus created the reinforcing braces are placed on the inside of the fiberglass step these braces may be the flat wood braces 13 the triangular cardboard braces 14 or any geometric configuration and any composition the purpose of the braces is to create strengthening radii 19 and 20 as previously described once the strengthening braces have been placed on the inside of the unit approximately 75 millimeters of fiber glass reinforced plastic is then sprayed over the braces this creates the strengthening radii 19 and 20 it is necessary to entirely seal the strengthening braces such that water ice or other deteriorating elements may not be introduced to the wood cardboard or other bracing material in order to insure this both the flat braces 19 cardboard braces 14 and strengthening side braces 12 must be fully encased in the fiberglass it is of particular note that the lower strengthening brace 12 must be.