Deck concave f/knee paddling - structural solution??

Hi again all, I have a dilemma concerning some deck concaving from knee paddling on my 9.0’ Takayama Model T. It really hasn’t gotten to the point where I’d have to worry about delam yet. I’d just like to know if there’s a way to reinforce the deck in that area (guess you’d call it a makeshift deck patch) with some resin & q-cell or the glass/resin mixed Suncure in the tube. Any thoughts on this or other suggestions to solve to the problem?? Thanks in advance, John

Hi again all,>>> I have a dilemma concerning some deck concaving from knee paddling on my > 9.0’ Takayama Model T. It really hasn’t gotten to the point where I’d have > to worry about delam yet. I’d just like to know if there’s a way to > reinforce the deck in that area (guess you’d call it a makeshift deck > patch) with some resin & q-cell or the glass/resin mixed Suncure in > the tube. Here’s a pretty good fix…Trace a pattern that is slighly larger than your knee indentations onto a piece of paper to make a template…then cut 3 to 6 patches of 6oz glass (use more layers if the indentations are really deep). Then mix up a small batch of resin and simply lay the glass in and let it set. Wait until it is completely cured, and then sand of the excess glass around the rim of the circle, don’t worry about making it too pretty cause you’ew just going to wax over it anyway.

One thing drew forgot to mention was to prep the surface you are glassing!If you don’t it will delam.USE SOME 60 OR 80 GRIT,and don,t be worried about burning alittle glass on the deck ,this will make for a better bond.Also you can tape the area desired before prepping to reduce or eliminate unwanted scaring.MAKE SURE YOU GIVE YOURSELF ENOUGH ROOM for the glass(1" around the patches).You can also pre tape the area and “lap-cut” the glass afterwards,then hotcoat if desired,and sand…But like drew said,“you’re going to wax over it anyway.”…GOODLUCK…Herb.

“lap-cut” the glass afterwards,then hotcoat if desired,and Herb, Just wondering – what is a lap cut? S

So, if a surfing customer orders a longboard for knee paddling, what’s the best glass job to provide them?>>> Herb,>>> Just wondering – what is a lap cut?>>> S

So, if a surfing customer orders a longboard for knee paddling, what’s the > best glass job to provide them? I’d say a six ounce patch is fine. Depending on how tall you are, 9’0" might be to sort to really knee paddle. A cool 10’+ volan job is a great knee paddler. The board can’t be to narrow either or it gets tipsy. Put some rad pinlines around the knee patch.

Herb,>>> Just wondering – what is a lap cut?>>> S …A lap cut is what you see around the rails of a surfboard,especially pigmented or volan glass jobs.It’s that razor line that goes around the board either/or on the upper or bottom of the rails(sometimes covered with a pinline).It has other names like : razor cut,zipper cut,cut line.I call them a lap cut because the glass laps masking tape.The masking tape is your boarder.Herb.

So, if a surfing customer orders a longboard for knee paddling, what’s the > best glass job to provide them? …Just ask them to put a center patch of 7.5oz glass where you will be when you kneepaddle,or you can have them use like 8 or 10oz volan instead,for a sturdier knee paddle area.Herb.

Oh yea,heavier foam will help also:eg.classic wt.,light,etc.Herb.

So, if a surfing customer orders a longboard for knee paddling, what’s the > best glass job to provide them? double layer of volan with a volan deck patch.my boney-ass knees have yet to do any damage to this particular glass scheme.one more note,have the deck patch glassed on after the initial glass is applied and kicked-seems doing it this way gives you a stronger yet lighter patch.