3M Super 77 - How?

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clifpa

CGF II, Certified Grumble Framer Level 2
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Sep 18, 2002
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Huntington Beach, CA
I want to mount a few small photo's using the above spray but wonder what is a good way to apply the stuff to the back of the photo's without getting it all over the place? Spraying doesn't seem to be an answer.

Stupid me, I did a test using my finger...what a big mistake that was??? (I'm still glued together, smile)

Ideas?

best Cliff
 
Well, Cliff, I think you're going to have to spray it. It's a spray. You can minimize the overspray by making a "spray booth" from a cardboard box. You may want to tape the photos - face-down - on a piece of cardboard. A little removeable tape on the corners should do it. You don't want them to move while you're spraying and risk getting spray on the face.

Check the directions. I think they suggest a minute or two of "open" time before attaching the print to the mounting board to allow the solvent carrier to evaporate. When you're done, turn the can upside down and spray until the nozzel is clear so you can use the can again next time.

If you find yourself doing this a lot, maybe look into one of the positionable cold-mount adhesives like 3M PMA or Crescent Perfect Mount.
 
Also, after you spray the photo, and get it placed where you want it, brayer it down. Be sure to put some kind of release paper over it first, but then I use a good quality rubber brayer to do this.
 
Be very sure that you have it in the exact position before removing the release paper because you will not be moving it again. It sticks very tight.

Jack Cee
 
There is a great product that I have used in my hobby endeavors: Xyron. It comes in several sizes and has different product that you can use with it to adhere adhesive and/or laminate material to your items- front a back depending on material. It works great - and I don't know why I haven't purchased one before now!! It is perfect for small items! There is a professional model that handles larger pieces -
 
Thanks my friends!

I will build a small spray box and apply all of the suggestions.

I will also look into the other material options.

Best, Cliff
 
Cliff, 3M also makes another spray adhesive that is much easier to work with. It is Vac-u-Mount. It has a little longer open time, but can be brayered down the same way as the Super 77, and, in most cases, will hold just as well. It just doesn't "grab" quite as fast, and, if you don't get your pic positioned just right, you have a minute or so to get it right. I use this in place of Super 77 most of the time.
 
When I am forced to use "77" spray, I spray it outside (sorry Easterners, I'm in Phoenix....82 today!. I cut up a plastic bag, cover a table with it, put the subject face down, spray as directed then run it into the studio to mount it as has been described. I hesitate using it because I've been told it is a carcinogen (cancer producing).....bad for ozone, etc. - never mind the lungs! I don't have a material data sheet on the spray (3M should). Have you ever thought of using Crescent Perfect Mount? The adhesive is already on the have matboard.....mount and go! No sprays! FYI. Good luck.
 
According to 3M's tech specs, Super 77 is not recommended for RC photos. I like to use PMA, but if you must use a spray you would probably be better off with PhotoMount for this purpose. If you do, you'll probably have the best results if you spray both the piece and the substrate, let the solvents outgas a while, then adhere the piece in place (carefully !) and apply pressure as others have described.

:cool: Rick
 
I use super 77 occasionally- put the brown glass paper on the table- cover everything close with paper- spray (carefully)- apply work to a larger that necessary piece of foam core- bray it down- then place it in mt seal press(with no heat) for a while. Since I started using the press, I have not had one come loose.The larger piece of foam core allows you to place the mat where you want it.
 
Here is a tip Take 24" X 24" box fan ($15.00)place a 25" x 25" furnace filter on the back side and place it on the table where you are going to spray, you should spray behind the fan not in front. It sucks up almost all the over spray.
Photomount is really best for photo's if you have to use a spray.
 
Thanks all!

I have the large combination hot/cold press in storage so this is temporary.

I just ordered the Photomount from United along with my mylar.

I like your idea James. I think I could use this in a lot of ways.

best Cliff
 
Artist,

Why do you use M77 having a press in your shop? :confused:
You would better smoke a pack of Marlboro/day as me, instead of using that good, but poisonous glue.

I use M77 ONLY when I have some really heavy staff to be mount. As other Grumblers recommended, I use low mist and acid free PhotoMount or Vac-u-Mount (even without a vacuum press). Upon braying it down through a release paper I normally leave the mounted material under the pack of the appropriate size glass for 20-30min.

Bork
 
I've been waiting for someone to mention the latest 3M Wonder Product for framing, but nobody did. So, here it is: ProSpray.

ProSpray was announced in Atlanta last year, and has been advertised heavily lately. It was demonstrated at WCAF in Las Vegas this month, where it drew big crowds to the 3M booth.

What a product! It's dispensed from a mechanically-pressurized plastic bottle (which is reclosable), through a pneumatic spray gun. Set up & clean up appears to be quick and easy.

I don't know the adhesive's composition, but they say its overspray is non-toxic, and has heavier particulates than an aerosol. The overspray drops quickly and doesn't travel far airborne.

The spray pattern is very controllable, so there's almost no overspray. To give you an idea of how controllable it is, 3m had a demo "spray booth" set up on a table about 2' square, right there on the trade show floor. To contain the spray, they had clear plexi walls all around the table, no more than 6" high, and a small filtered fan under the table, sucking overspray through a couple of slots along the sides of the tabletop. Even on the last day of the show, I saw NO residue of the spray adhesive anywhere around the table. Amazing.

I avoid spray adhesives for their mess and toxicity. However, it seems to me ProSpray is much more shop-friendly, and would be the logical replacement for 3M77 in many framing applications.

Call United -- I understand their first shipment from 3m was due earlier this month.
 
I've got my Pro-Spray, Jim. I haven't had a chance to use it, yet. I will, though, in the next week or so. Another thing, that you didn't mention, is that, the adhesive is water soluable until it dries. By this, I mean that, any overspray can be wiped up with a wet cloth. When the stuff dries, it is supposed to have the same hold as Super 77. I've got the correct application for it is an old black and white photo I've been working on with Anne's advice. When the touch up on it's finally dry, I'm going to mount it with the Pro-Spray. Otherwise, the thing will not ever lay flat.
 
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