Gene Howe Posted June 15, 2023 Report Share Posted June 15, 2023 Just a thought. How about applying a sanding sealer to the plywood before the pattern? kmmcrafts, ChelCass and OCtoolguy 3 Quote Link to comment Share on other sites More sharing options...
kmmcrafts Posted June 15, 2023 Report Share Posted June 15, 2023 That might work but also might not be usable for the desired finish after the project is done too. I've not had much of a problem with this ever since I started sanding the plywood down to a very smooth surface ( 320 grit ). I've also read that you can spray mineral spirits on to help loosen the glue, I have not tried that method yet but plan to one of these days. I have used a hair drier on heat setting and it loosens up the glue as well, if electric is an issue or your spouse doesn't allow you to touch the hair drier.. you can just set it out in the direct sunlight for an hour or so and it'll also loosen up the glue. Tip for those that might try the heating method... I've found that if you heat it up and then forget or wait too long and it cools down some... it's stuck even worse than before and will require more heat than you applied previously to get it to loosen up again. This brings me to this thought.. If you apply the pattern in cool weather and it takes you weeks / months / years / centuries to finish the project... this could need heat such as a bonfire to get that pattern off.. seriously though, I try to finish a project asap once the pattern has been applied, I don't like leaving that pattern on there any longer than I have too as the longer it's on there the more stuck it tends to get, and will likely need heat or maybe that mineral spirits to get it off there without damaging the project. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
BadBob Posted June 16, 2023 Report Share Posted June 16, 2023 I have had the same idea. Coating the wood with dewaxed shellac should somewhat strengthen the bond between the wood fibers. I never tried it because using 3M77 to stick the pattern to the wood and removing it with mineral spirits eliminates the problem and simplifies the process. The only gotcha is that you must wait for the mineral spirits to evaporate. Even complicated patterns come off in one piece, and there is no damage to the wood. I used to use lots of blue tape but now I use so little that I may not live long enough to use what I have in stock. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
NC Scroller Posted June 18, 2023 Report Share Posted June 18, 2023 On 6/16/2023 at 7:25 AM, BadBob said: I have had the same idea. Coating the wood with dewaxed shellac should somewhat strengthen the bond between the wood fibers. I never tried it because using 3M77 to stick the pattern to the wood and removing it with mineral spirits eliminates the problem and simplifies the process. The only gotcha is that you must wait for the mineral spirits to evaporate. Even complicated patterns come off in one piece, and there is no damage to the wood. I used to use lots of blue tape but now I use so little that I may not live long enough to use what I have in stock. Did you know that is you are using poly or other finishes that at thinned by MS or cleaned up with MS you can apply your finish while the MS is still wet from your pattern removal? I just blot the excess MS off with a paper towel first. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Blaughn Posted June 20, 2023 Report Share Posted June 20, 2023 (edited) I have a heat gun (a hair dryer with higher heat level) I use to separate the pattern. My patterns are affixed to the wood with Walmart shelf paper and rolled with a wallpaper roller to get maximum adhesion. Applying heat works well and reduces the stress on delicate drop-outs. This is the one I use - it has 2 heat levels. https://www.amazon.com/Hangar-9-HAN100-Heat-Gun/dp/B0006N6XZW/ref=sr_1_2?crid=23BGNNKZ3M9YL&keywords=monokote+heat+gun&qid=1687267924&sprefix=monokote+heat+gun%2Caps%2C105&sr=8-2 Edited June 20, 2023 by Blaughn OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
Hawk Posted June 21, 2023 Report Share Posted June 21, 2023 Well, for my 2 cents. Since I've started using shelf liner on the wood prior to gluing the pattern, I've never had a problem with removing the pattern. I try to make sure that the wood is as clean and dust free as I can get it. Put on the shelf liner, I use and old credit card to make sure there is a good bond then glue the pattern to the shelf liner. I do watch how I remove the shelf liner, especially form ply, making sure I pull toward thin spots, not away and pull very slow on the thin areas. Chris OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
TAIrving Posted June 21, 2023 Report Share Posted June 21, 2023 You might try a better grade of plywood. danny and OCtoolguy 1 1 Quote Link to comment Share on other sites More sharing options...
crupiea Posted June 21, 2023 Report Share Posted June 21, 2023 No need to ovethink this issue. Just use less adhesive to attach the pattern to the wood. I barely use any super 77. just a super light spray. Takes a while to figure it out but once you do this problem will no longer be an issue. I just follow the directions on the can for a temporary bond. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted June 21, 2023 Report Share Posted June 21, 2023 6 hours ago, crupiea said: No need to ovethink this issue. Just use less adhesive to attach the pattern to the wood. I barely use any super 77. just a super light spray. Takes a while to figure it out but once you do this problem will no longer be an issue. I just follow the directions on the can for a temporary bond. I've followed your advice and it works. A very light coat on both surfaces. Then let them dry almost. Like using contact cement. crupiea and don watson 2 Quote Link to comment Share on other sites More sharing options...
danny Posted July 8, 2023 Report Share Posted July 8, 2023 Buying Plywood. When Sloan closed its doors many years ago and I have had to seek other places to order. Amazon I thought was a Great place to buy. Little did I realize UNTIL after a project or three that the wood they sent Just couldn't be Baltic Birch. Their adds suggests using it for CNC projects. I experenced many times the THIN LAYER Of the top or bottom pulling or just falling off after the cut. LSS.... Buy from a Reputable Company that Many Scrollers have been using for a long time. Live n Learn. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted July 8, 2023 Report Share Posted July 8, 2023 1 hour ago, danny said: Buying Plywood. When Sloan closed its doors many years ago and I have had to seek other places to order. Amazon I thought was a Great place to buy. Little did I realize UNTIL after a project or three that the wood they sent Just couldn't be Baltic Birch. Their adds suggests using it for CNC projects. I experenced many times the THIN LAYER Of the top or bottom pulling or just falling off after the cut. LSS.... Buy from a Reputable Company that Many Scrollers have been using for a long time. Live n Learn. Not sure where you are but I bought mine from Cherokee Wood Products here in So Cal. Not disappointed. Quote Link to comment Share on other sites More sharing options...
TAIrving Posted July 9, 2023 Report Share Posted July 9, 2023 Not sure where you are but I bought mine from Cherokee Wood Products here in So Cal. Not disappointed. This could explain my disdain for BBP. Early in my scrollsawing journey I purchased some via ebay and was quite disappointed. Later I bought a box of "Project Panels" from HD and found them noticeably better. Then I bought some hardwood panels from various sources, very pleased with those, and that is what I use now. However, more often than not I make my own panels via resaw, glue-up, plane down, etc from cutoffs I get from furniture making friends. OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted July 9, 2023 Report Share Posted July 9, 2023 4 hours ago, TAIrving said: Not sure where you are but I bought mine from Cherokee Wood Products here in So Cal. Not disappointed. This could explain my disdain for BBP. Early in my scrollsawing journey I purchased some via ebay and was quite disappointed. Later I bought a box of "Project Panels" from HD and found them noticeably better. Then I bought some hardwood panels from various sources, very pleased with those, and that is what I use now. However, more often than not I make my own panels via resaw, glue-up, plane down, etc from cutoffs I get from furniture making friends. You sound like me. I hate being limited to projects that are 6" wide. And plywood is not my material of choice. Right now I need some 1/4" thick and 1/2" thick hardwood 10 x 10" so I'll be gluing up my own. Quote Link to comment Share on other sites More sharing options...
Scrappile Posted July 9, 2023 Report Share Posted July 9, 2023 1 hour ago, OCtoolguy said: You sound like me. I hate being limited to projects that are 6" wide. And plywood is not my material of choice. Right now I need some 1/4" thick and 1/2" thick hardwood 10 x 10" so I'll be gluing up my own. cherokee woods OCtoolguy 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted July 9, 2023 Report Share Posted July 9, 2023 1 hour ago, Scrappile said: cherokee woods They are my go-to Paul. The cost of shipping has stopped me more than once though. I'd drive out there but the cost of gas has also stopped me. If I can put together an order large enough to warrant the expense, I'll head out there. I always come home with a box or two of cut-offs that are interesting. I even scored some 1/8" BB ply cut-offs a while back. Believe it or not, somebody ordered some ply and one they were done cutting it to order, there were a half dozen 12" ends from the 4 x 8 foot sheets. I have made good use of that stuff. Quote Link to comment Share on other sites More sharing options...
Scrappile Posted July 9, 2023 Report Share Posted July 9, 2023 I have been wanting to place. an order, and I alway compare prices with what I could get the same for from Ocooch. The order I want to place not, cherokee beats Ocooch by about $15. Doesn't always work out that way but this time ie does. but even with that I hesitate to spend the money right now. Gene Howe and OCtoolguy 1 1 Quote Link to comment Share on other sites More sharing options...
OCtoolguy Posted July 9, 2023 Report Share Posted July 9, 2023 3 hours ago, Scrappile said: I have been wanting to place. an order, and I alway compare prices with what I could get the same for from Ocooch. The order I want to place not, cherokee beats Ocooch by about $15. Doesn't always work out that way but this time ie does. but even with that I hesitate to spend the money right now. This hyper inflation is killing everybody. I sure hope the voters get smart in 24. Gene Howe and BadBob 1 1 Quote Link to comment Share on other sites More sharing options...
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