= Plastic for Floatation =

[[ https://www.generalplastics.com/products/r-3300 | General Plastics Polyurethane Subsea Buoyancy Foam ]]

4910 Burlington Way Tacoma WA 98409  Privately owned since 1941

|| Products || Density ||<-2> Tested Depth (m) ||
||          || kg/m3   || uncoated || coated   ||
|| R-3312   ||  192    ||    91    ||  182     || [[ attachment:r-3312-tds.pdf | data sheet]] || [[ https://www.generalplastics.com/wp-content/uploads/2016/11/r-3312-tds.pdf | original ]] ||
|| R-3315   ||  240    ||   213    ||  426     || [[ attachment:r-3315-tds.pdf | data sheet]] || [[ https://www.generalplastics.com/wp-content/uploads/2016/11/r-3315-tds.pdf | original ]] ||
|| R-3318   ||  288    ||   244    ||  487     || [[ attachment:r-3318-tds.pdf | data sheet]] || [[ https://www.generalplastics.com/wp-content/uploads/2016/11/r-3318-tds.pdf | original ]] ||
|| R-3325   ||  400    ||   366    ||  731     || [[ attachment:r-3325-tds.pdf | data sheet]] || [[ https://www.generalplastics.com/wp-content/uploads/2016/11/r-3325-tds.pdf | original ]] ||
||<-5>[[ attachment:R-Rigid-Foam-SDS.pdf | Safety data sheet ]] || [[ https://www.generalplastics.com/wp-content/uploads/2016/11/R-Rigid-Foam-SDS.pdf |  original ]] ||

Most of the loop will be 50 meters deep during preparation for deployment.  The bottom parts of the upcurves may be 500 meters deep, and putting the floats directly on them would provide more damping than anchor cables.  The turnarounds at the endw will be anchored to the sea floor with '''giganewton''' diagonal cables, which will also need buoyant support.