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General Category => General Scroll Saw Talk => Topic started by: yyyyyguy on April 28, 2011, 12:43:59 pm
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I cover the wood w/blue painters tape, spray pattern w/glue (Elmer's craft bond spray adhesive) , attach pattern to tape after about one minute, use clear packing tape to cover - my problem is half the time the pattern lifts off the blue tape and I'm struggling to hold the pattern so I can follow the lines. Is it the glue? I've tried attaching it after 15 sec. and up to 3 min. but I often get the same "pattern flapping" :-\ :-\ :'(
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It sounds like it is the spray glue you are using. I am noticing more and more that there are different strengths of bonds that you can get. I would think that with using this method, you can use a "strong" bond or even a "permanent" bond and you will be more successful with keeping the pattern in place. I use Elmer's spray adhesive which is a temporary bond and sometime it just decides it doesn't want to stick. I find myself respraying the pattern after vigorously shaking the can for a few minutes. Perhaps I didn't shake it enough initially.
In any case, try the stronger bonding sprays and see if that will help. Good Luck! Let us know!
Sheila :D
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I have noticed this in the past also. In my case it was heat. I had a light source that was giving off to much heat causing glue have a weak bond.
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I haven't always had good luck with spray glues, so I switched to glue sticks. Just the cheapest craft/school glue sticks I can find (I stock up during the back to school sales)
If yankeebum is right about heat causing a problem, I would think that the heat created by the blade cutting would also cause the pattern to lift.
MrsN
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I use 3M #77 spray adhesive and have never had a problem.
This particular adhesive is not the cheapest but it was developed for attaching the headliners in autos and is one strong bond!
Even when applied directly to the wood itself it is just a matter of spraying it with Mineral Spirits and it lifts right off.
~~~GB~~~
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I agree with GrayBeard. The 3M77 is great. :)
Sheila
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I use the 3M77 too. I spray a real heavy coat directly to the pattern and stick it on immediately. Press it down good to remove all bubbles and let it set for a little while. I have not had a problem with the pattern lifting since I started doing this. I stick my pattern to the wood and I keep some mineral spirits in an old windex bottle and just spray a liberal coat and let it set about 5 minutes and the pattern peals right off in one piece. I guess a lot of people don't like messing with mineral spirits so they use the blue tape, but I think it's quicker and easier to use the mineral spirits. But everybody needs to try different methods and just do what works for you.
Kim
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I agree about the 3M adhesive, too. That's what I have used for years. I also attach the pattern directly to the wood, and don't have much problem with residue. Eventually, you know how much to spray on.
The only time I have a problem with the pattern lifting is if I leave the pattern glued on the wood, but don't cut it out within a few weeks....then the corners will start to lift as I am cutting. Then I spray on a tad more and problem solved.
Jim
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Hey Jim. I used to have that problem too with the pattern lifting after it set awhile. I just started spraying a heavier coat of glue to start with and now I don't have a problem. I do take a rag with some mineral spirits and carefully wipe away any residue that is left.
Kim
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use adhesive paper. It's so much easier and so much cleaner.
regards
Torsten
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3M #77 ... spray, set for a few seconds, apply and wipe over to remove air bubbles...
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I like the 3M idea, we have a plant near here, I'll have to talk to a few employees I know, maybe I can get a deal ;D, Thanks for all the help.
Pete
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I'm with Mrsn on this, Tape, cheap glue stick (not the dollar store stuff).
***Merlin***
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If you are using Blue Tape over the wood, why are you waiting before you are setting the pattern on place? The wait is to make the Glue "tacky" so it will come off the wood easier but you are not putting it on the wood so at least lay it down NOW!! I am also a fond user of 3M77 Spray. But It don't come off windshields very good. Don't ask.
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3M-45 general purpose spray adhesive on blue painters tape. No problems. About $6 at local hardware store.
Gabby
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I think I may try that glue stick stuff too- couldn't hurt!!!
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i use adhesive label paper over masking or painters tape with know problems. no more mess with spray glue or tack time just peel and stick simple and easy!!
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For what it's worth, using a spiral blade also causes lift so that's why I draw or trace the pattern right onto the wood.
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I use a cheap spray adhesive and have some pattern flapping sometimes.
what I find is that it also matters what kind of wood I use.
for example, when i use red cedar the pattern doesn't stick very well. also the painters tape comes of relay easy.
on good sanded pine it holds much better.
next to glue, I sometimes use clear tape over the project, mostly with stacked cutting.
the problem then is next to the pattern flapping, the sawdust gets between the pattern and the tape so I cant see the pattern line......
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Even though I'm just starting out, from reading here I use the 77 glue also and to take it off real easy I hit it with carb cleaner on the pattern. soaks right through and no glue left on the wood. break cleaner works as well. Keep in mind I'm not using expensive wood just poplar and pine stuff to practice on.
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For me I use the Elmer's craft spray glue and saturate it. Wait 5 seconds and then apply it to the wood. But I found I have to let it set into the wood for 5 to 10 minutes before cutting. To remove it I use a heat gun and it peels of perfect. This is what works for me.
Mike
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I use Blue tape on the wood (Comes off easy) and 3M 77 on the pattern. I've done this for a LONG time, I have not used the Green tape yet. I use tan tape so I can see the pattern, on a double cut pattern. I make a LOT of roses and everything is a compound cut on those. I'm about to try many other types of flowers. Cutting these I just glue the pattern on the wood, everything I want is on the inside of the wood.
Vince
Winter Park, Fl
Near the Mouse House
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i buy rolls of the clear sticky backed stuff that you buy for covering books or shelves with,you can buy it in kmart or similar places,5m rolls .it lasts a while and i just cut it to suit the pattern,stick it on the wood.then 3m spray to stick on pattern.with the smaller offcuts ,use them for smaller pieces and you get full use out of the roll,when finished cutting it peels off leaving no residue----dave
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I too have learned to use the 3M77 adhesive spray. I also apply a heavier coat was a few seconds and apply to the painters tape. I have also found that the older the glue is, the less sticky is gets. I tried the glue stick thing for awhile, but when my work sits for long periods of time before i can get to them, the glue no longer holds. If I am working on a project that will sit for a few days or weeks, the 3M77 works great and stays put!
Just my thoughts.