View Full Version : Which glue ?
calvin
05-19-2008, 04:31 PM
My project is a 1961 Grady White Pamlico..I am now to the point of glueing a new deck of 9mm okume to the frames...I have recieved some suggestions..liquid nails..PL polyurethane construction adhesive...epoxy...and last but not least resorinol ?
Tom Robb
05-19-2008, 04:59 PM
Since it may one day need to be replaced again, why not bedding goo and screws?
Lew Barrett
05-19-2008, 05:19 PM
Jeffries Marine Glue (http://marinestore.co.uk/Merchant2/merchant.mvc?Screen=PROD&Product_code=DA5025-OO-2500&Category_code=wood-glues) might be another choice. I learned about this stuff here, from our own Jay G.
Might be worth looking into. I bet Jay will be along shortly to comment if this is the best application for it.
calvin
05-19-2008, 07:10 PM
Iwould like to keep fastners to a minimum and I need it to fill some gaps as I added some shims to the existing frames to give the decks a little more crown..I am testing the polyurethane construction adhesive now on some scrap sapele .
mcdenny
05-19-2008, 09:06 PM
PL Premium will work great for that application -easy to squirt on, fills small gaps, inexpensive.
AndreasJordahlRhude
05-20-2008, 07:31 AM
I assume you mean attaching the plywood deck to the deck beams?
I have done this same process to several plywood lapstrake outboard speed boats made by Thomspon Bros. Boat Mfg. Co. Very similar in design and construction to Grady-White Boats. Glen "Bud" Grady started his career at Thompson Boat in Peshtigo, WI.
I have used 3M5200 adhesive along with nails and screws. Nail and screws get countersunk and puttied. If there are trim pieces that go on top of the deck, I try to put fasteners at those locations to hide them. Items such as toe rails, king plank, bow light block...
Check out www.thompsondockside.com (http://www.thompsondockside.com)
Andreas
Thorne
05-20-2008, 11:54 AM
Haven't done anything like what you describe, but I'll say that I've been using PL Premium as an 'epoxy replacement' for *some applications* for several years, and it works very well on my much smaller boat. Watch for the expansion (MUCH less than its baby brother Gorillia Glue) and be prepared to wipe it off with a tool or nitrile-gloved finger.
Jay Greer
05-20-2008, 03:17 PM
Jeffries Marine Glue (http://marinestore.co.uk/Merchant2/merchant.mvc?Screen=PROD&Product_code=DA5025-OO-2500&Category_code=wood-glues) might be another choice. I learned about this stuff here, from our own Jay G.
Might be worth looking into. I bet Jay will be along shortly to comment if this is the best application for it.
Jefferies Marine Glue is a seam compound, I would not consider using it to glue decking to plywood. Although I have not used it for boat construction, I have a gut feeling that polyurathane glue might just be a viable adhesive for many marine uses. It has recieved very respectible testing reports from the US Forest Lab which, seems to indicate that it might work. The main appeal of this adhesive is that it will retain a certain amount of flexability. I consider this to be a plus in areas where some give is advisable. Certainly 5200 will glue two pieces of most anything together forever! But it is hell to pay if you need to take something apart! In addition it is very messy to use and, it is a bit spendy for a big job.
Jay
AndreasJordahlRhude
05-21-2008, 04:44 PM
This boat is a wooden lapstrake outboard speed boat of 16'-6" length. About 1/4 to 1/3rd of a tube of 3M5200 will be needed to bond plywood decking to the deck beams and king plank and gunwales. You can get a tube at Home Depot for under $8.00.
Andreas
Jay Greer
05-21-2008, 10:45 PM
Well, since you are not going for a sixty footer then go for it.
Cheers,
Jay
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