: actualy there are many different typs of pvc, including the pvc
: composit material that im using, although i can not curently
: rember the specific name of the material( i will post it as soon
: as i can find it) it is made to cary industral coolents to
: factory equipment and is able to hold its structural intergraty
: under very low temperature condetions. also there are coatings
: available that will make it more heat resistant. and as for
: strength, the the pvc has more than enough strength. i weigh in
: at about 210 and the first one i built has absoutly no problems
: with my weight. and handels very well.

Good to hear as I've always considered PVC tubing as useless junk with regards to kayak stringers.
Then again, one pic is worth a thousand words :)

Tom