soft floor question

[smokeonthewater]

A buddy of mine used seacast for transom and stringers on a little cimmeron bass boat...

He had a little left over and poured up a test sample n also another buddy used a little to fill a void in a rotten 4x6 stringer in his 26' cruiser... He didn't even scoop out rot, just sopped up standing water w a towel dumped the seacast in the hole....

When he closed the hatch the pneumatic strut stuck into it....

Later it was a nightmare trying to get the hatch back open and we never did manage to get the end of the strut out of the hardened seacast... It just wasn't worth the blood sweat and tears of trying to cut, grind, and break that stuff.

[smokeonthewater]

http://www.transomrepair.net/pages.php?pID=10&CDpath=0

"......Seacast tm uses chopped reinforcement recycled fiberglass where others use ceramic spheres. In comparison fiberglass strands provide superior tensile strength better than ceramic spheres. Pound for pound, we dropped a 20 lb. weight from 10 feet creating 200 ft lbs of force. The difference is we dropped it once on the competition and they split and broke on the first drop. We dropped it 20 times on the Seacast tm, which resulted in just minor cosmetic damage."

EDIT:
Btw while 200 ft/lbs sounds impressive... I figured the force of impact for their test at 60759 lbs of pressure at assuming very little (.001 meters) compression upon impact...