Props to GOO

[Roger Holmes]

In 1972 I built the Quality Craft grain elevator below and attached the black construction paper roofing with Walthers GOO.  The black has faded to purple and the roof is crude by today's standards so I decided to strip off the paper and replace it with Monroe Models shingles.  I expected it to peel right off.  I am now one hour plus into the project and there are still areas that are stuck.  I even used a little of my lifetime supply of Bestine (the solvent for Shapeways printing wax which is really rubber cement remover) and that helped a bit but the GOO has proven to have a tenacious hold even after 43 years.

This points out two things. 1)  GOO is a great product---gotta love that smell because it means modeling time, and 2) I am getting really old if I have models built 43 years ago.

[peteski]

Roger, if you look on the tube of GOO it mentions that it has acetone as a solvent.  Try soaking the paper shingles with acetone.  It evaporated fast so you might have to keep doing this few times (I would use an eyedropper).  That shoudl soften the GOO. But if you have any styrene parts on that kit, keep acetone away from them.

[mmagliaro]

Walthers Goo is WONDERFUL stuff.  It solves gluing problems that no other glue, even JB Weld, can solve
because of its rubbery consistency.   I always keep it on hand and immediately buy more when I see my tube
getting low.

[Chris333]

Is it the same as Pilobond?

[peteski]

Is it the same as Pilobond?

Nope.  Pliobond is more like contact cement (it is designed to be thinly applied to both surfaces then when semi-dry pressed together). Goo is just a rubbery cement with some body to it.

[rschaffter]

Nope.  Pliobond is more like contact cement (it is designed to be thinly applied to both surfaces then when semi-dry pressed together). Goo is just a rubbery cement with some body to it.

However, it you apply Goo like this, it bonds instantly and is essentially permanent...

[peteski]

However, it you apply Goo like this, it bonds instantly and is essentially permanent...

True. But Goo is more viscous than contact cements so it is more difficult to apply in thin layers (plus it generally costs more than contact cement).

[Joetrain59]

Just be VERY CAUTIOUS with the acetone vapors. Ventilate.
 Joe D

[victor miranda]

is acetone more special than MEK?

I love the smell of acetone....
MEK not so much

victor

[up1950s]

I bought this stuff for a recent household project , I think it is a new product . Works a lot like GOO and is clear , but it doesn't have that nice GOO fragrence , this has a nasty chemical odor that lasts for a few days .

[peteski]

Just be VERY CAUTIOUS with the acetone vapors. Ventilate.
 Joe D

Tell that to the wife when she is suing her acetone nail polish remover in the bathroom. 

Is acetone that much more dangerous then let's say MEK or Methylene Chloride?

[muktown128]

Tell that to the wife when she is suing her acetone nail polish remover in the bathroom. 

Is acetone that much more dangerous then let's say MEK or Methylene Chloride?

Methylene Chloride is more dangerous than MEK or acetone. 
I would stay away from methylene chloride.
Acetone is more flammable than MEK. 
Acetone has a more lower flashpoint, so it is more flammable than MEK.
Acetone and MEK are soluble in water, methylene chloride is not.
Acetone is a VOC exempt solvent for paint.
We use acetone and MEK in our paint formulations, but not methylene chloride.

Acetone:  CH₃C(O)CH₃
MEK:  CH₃C(O)CH₂CH₃
Methylene Chloride: CH₂Cl₂

Regards,
Scott

[Roger Holmes]

                   Fe--Fe   
                  /         \
                Fe         Fe
                /              \
             Fe               Fe
              \                  /
               Fe              Fe
                 \               /
                   Fe---Fe   /


    "Ferrous Wheel"---The only thing I remember from Chemistry

Once again Peteski nailed it.  A bit of the Wife's nail polish remover and the remaining stubborn strips came off .  Working now on the new shingles.

[peteski]

Sometimes it pays to read the label on the tube.     I'm glad that it worked out for you.

Thanks for the chemistry lesson Scott.  Methylene Chloride is a major part of several styrene and acrylic liquid cements.  Acetone is widely used by women as nail polish remover.  How dangerous can it be if all those women with beautiful fingernails are still alive? 

If I stayed away from all these chemicals, I would not be in my hobbies. And no, I have not adapted to water-based hobby paints either.  With a little bit of common sense, I hope to stay alive and enjoy my hobbies  for many more years.

[Cajonpassfan]

Back to regularly scheduled programming....

Back in 1974 (or so, it's fuzzy, I must have been sniffing some glue) I laid some then new Code 40 Western Railcraft rail on what was to be an experimental yard diorama with just rail, buried in dirt, no ties, using GOO. Today, it's still in our (uninsulated) garage, leaning against the wall, with rails firmly attached to the sanded cork base. I seem to recall, and it is fuzzy, that I applied the Goo on both surfaces, let it dry a bit, and then used a hot iron to set it in place. I still love the stuff, although I think the formula has changed since; the tube used to have orange lettering, now it's blue...

Otto K.