also made in accordance with offshore technology report oti 95 634 on a system comprising the upper layer composition example 1 table 1 alone the test specimen was primed with an epoxy primer and coated with a nominal thickness of 12 mm of the upper layer composition on the back of the box and 16 mm on the web the entire structure was reinforced with a sized woven carbon fiber fabric about 8 mm from the box and web surface an additional layer of fabric was used over the web only at a nominal 12 mm from the web surface the fabric had approximately 2 3 openings per square centimeter weighed about 105 grams per square meter and the joint layers of the cloth were overlapped the average measured thickness of the system was 12 7 mm 10 5 16 mm on the back of the box and 15 2 mm 13 17 mm over the web of the test specimen at the end of thirty minutes average box temperature had risen 121 u00b0 c above ambient and average web temperature had risen 175 u00b0 c after seventy minutes average box temperature had risen 180 u00b0 c above ambient and average web temperature had risen 347 u00b0 c after one hundred twenty minutes average box temperature had risen 207 u00b0 c above ambient and average web temperature.