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Acetone - How To Use For Model Building

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Acetone - How To Use For Model Building
Posted by maxman on Tuesday, August 6, 2019 2:36 PM

I'm looking for some basic information on how to use acetone for model building.

I recently purchased a 3D printed kit which recommends using acetone for assembly.  The material is stated to be ABS.

Is the acetone applied similar to liquid plastic cement?

Will the Plastruct-type liquid adhesives that claim to bond ABS work as well as the acetone?

How about nail polish remover?  I think some of these contain acetone.

I am already aware of the "bad" properties of acetone, so no need to go there!

Thanks

Dick

DrW
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Posted by DrW on Tuesday, August 6, 2019 3:30 PM

While I have no experience with acetone for model building, chemically both compounds are very simiar. Plastruct-type liquid adhesives are methylethylketone, while acetone is dimethylketone. Acetone will evaporate a bit quicker.

JW

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Posted by mrrdad on Tuesday, August 6, 2019 4:06 PM

I use acetone frequently, but not for modeling. It evaporates very quickly and is hard on the skin. It is also very thin to work with.

 

Ed

Semi newbie HO scale modeler coming from the O scale world

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Posted by BuchananBucks on Tuesday, August 6, 2019 6:38 PM

Most of the true solvents I've tried are just too smelly and uber flammable, so I stick to Plastruct or Testor solvents or CA. I have used contact cement as well, but only for bracing, not for bonding walls together.

Dan

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Posted by dstarr on Tuesday, August 6, 2019 8:30 PM

I buy acetone in quart cans at  the paint department.  I would pour it into an empty plastic welder bottle, the kind with a brush in the cap.  I might label the bottle as containing acetone, especially if you have other simular bottles with other stuff in them.  I would apply it the same way as I apply plastic welder.  Dunno how other stuff will work on the 3D printed material.  I think I would follow the maker's instructions.  Nail polish remover is mostly acetone but it has some skin softener oils and other stuff in it.  I would stick with straight acetone.

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Posted by mbinsewi on Tuesday, August 6, 2019 10:02 PM

I agree with David.  I've never used acetone as a "welder", but I would follow the assembly instructions.

I use MEK for styrene.

Mike.

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Posted by nwsisu on Wednesday, August 7, 2019 1:31 AM

I am not familiar with kits, but when I joined together the sections of my 3D printed bridge (my own design), I tried different methods. One that seemed to work well, was dipping a q-tip in acetone, and then run the q-tip along the joints. But you need to experiment first, so you don't ruin your kit.

You can also make "acetone abs glue". I did that and it also works well. Just google acetone abs glue for the recipe.

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Posted by gregc on Wednesday, August 7, 2019 5:23 AM

maxman
Will the Plastruct-type liquid adhesives that claim to bond ABS work as well as the acetone?

on the scale of various solvents used for stripping paint, i think acetone is closer to mineral spirits and turpentine than methyl ethyl ketone (MEK) which is what Plastruct adhesive is and toluene.

MEK is a solvent that temporarily disolves the surface of styrene, allowing two pieces to join when the solvent evaporates and the material hardens.

i have a can a acetone handy for removing paint.

greg - Philadelphia & Reading / Reading

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Posted by G Paine on Wednesday, August 7, 2019 10:49 AM

maxman
How about nail polish remover?

Nail polish remover usually has acetone, but also has oil and some other stuff. Better to go to the hardware store and buy 100% acetone. 

George In Midcoast Maine, 'bout halfway up the Rockland branch 

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Posted by maxman on Wednesday, August 7, 2019 11:00 AM

nwsisu
Just google acetone abs glue for the recipe.

Thanks.  Did Google.  Lots of interesting stuff.

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