View Full Version : Late night thinking
09-17-2005, 11:49 PM
Sure it's late, windy and raining, I've had a couple of beers but dammit I can't sleep. So I got to thinking. Soley for experiment purposes, and before I touch saw to wood, I thought I'd run it by some other knowledgable folk. For a small (tiny) S&G tender (on the cheap) would it be SO wrong to fillet with PL Premium and over that run some FG tape and polyester resin?? Quick and dirty. Since polyester doesn't stick all that well (or so I've gathered from the 3 hours of forum searching, honest) I'd figure PL as a fillet would hold her together. But will polyester stick over the PL fillets? If PL is paintable then why not? For an easy built, cheap S&G skiff why not PL fillets in there and tape o'er with polyester resin and FG tape (polyester resin and tape the outside seems, of course, too)? Then wet out some FG on the exterior with some polyester resin and she's done.
Sorry, but that is absolutely a terrible idea.
I am a P.L. Premium fan, but it was not designed for such a use. It is a glue that is to be sandwiched between two pieces under compression for strength.It is not designed as a gap filling and or filleting material.You can not build a chine log out of it as you would epoxy in stitch and tape construction. Back to drawing board and less technical thinking during drinking time.
This is another good example why late night thinking is to be avoided. Watch old tv reruns instead. Anything but thinking :D
09-18-2005, 10:59 AM
Granted I'm not going to blame these oddball ideas completely on late nights and a few beers. I think I'll need to stick to the solid wood chine (maybe PL between that and the sides) and polyester resin and tape on the outside seems. The price of epoxy is through the roof so I'm opting to go with polyester (I might change my mind later), taking in mind all its 'faults' and 'shortcomings'.
Try the "Instant Boat" forum for details on that question. Actually polyester resin sticks to lauan plywood quite well but if the wood gets wet then all bets are off. Polyester just doesn't penetrate enough to get a firm grip on the wood. Doct tape is probably as tenatious initially but even less durable than polyester resin.
09-18-2005, 01:55 PM
I'm not going to do the arithmetic now, but i'd be surprised if it'd take more than $40-50 worth of epoxy, glass and microballoons to stick a dinghy together.
Switch to cheaper beer.
09-18-2005, 02:45 PM
Cheapest I found was $60 a gallon, throw in shipping and rollers and acetone and viola, not worth it. I can throw in a chine and buy some Resorcinol (AKA DAP Weldwood) down the street and ring nail her together but I wanted to lean against planing the cine logs flush for the bottom (too much time). If I have to use a chine log then I will. Pick up a gallon of polyester resin a block away from where I live and sheath outside. For 2 hours of water contact a year, how far off am I?
09-18-2005, 02:48 PM
09-18-2005, 02:56 PM
Yup saw that already Dave, thanks anyway. Not to name names but H. Payson was building dories out of AC ply, resorcinol and polyester in 1983 and alot of them still exist. Granted epoxy is sooo much better but I simply can't afford it. He also mentions dry powder glue mixed with cold water. Anyone want to give me a name of this product?
PS(I hate to be so combatant about some things but a heated discussion seems to address alot of important solutions. With that, I appreciate all of your advice.)
I built a Nymph about six years ago and except for a small area that wasn't properly sealed and developed some rot it has been durable. It stays outside on a dinghy rack without a canvas cover when it is not in use. I paint it when the paint is showing signs of need. There is no epoxy in her but a substantial amount of polyester for both the fillets and the glass covering.
It survived Hurricane Isobel chained to the rack at the marina, floated out of the rack, righted herself and was half full of water when I found her.
Ross in Bel Air
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