Need help finding a "liquid plastic" for project. Craft people might know what I'm looking for.

Have you looked at clear epoxies? Mixing a color into it would take some experimentation, but you should be able to get what you want.

 

Liquid Varathane comes in spray cans of many colours. It used to be made by Flecto, but I think it's now marketed by Rustoleum. Most home improvement stores should carry it.

 

Do the letters have backing to them? If so, you could try an enamel to fill them in.
I'm not directly familiar with them, but there are also various epoxies, mold making materials, etc. for the miniatures hobby.

 

How deep are the letters? If they are shallow enough that a layer of paint will do the job, then the options are wide open. Varathane products would be good as far as pint goes.

If they are too deep for that, then a clear 2 part epoxy would be good and also the easiest to find. People have tinted epoxy with all sorts of stuff.

Google tinted epoxy and pick what looks easy for you to do.

2 part epoxy garage floor paint would be good. It would set up but you usually need to buy it by the gallon.

 

OK, now I see what you're talking about. Thank you, the picture is more helpful than the description alone.

I'm not so sure paint will work to fill in the holes. It's designed to coat surfaces, not be a structural element. Without any kind of backing, and subject to rubbing from your foot, paint wouldn't last very long.

What about putting a coloured sheet of plastic behind the metal? The colour would show through, and it would be easy to shape to the overall dimensions and then attach it to the back.

You could also use the metal as a stencil to mark the plastic, cut out the plastic pieces, and edge-glue them so that they fit flush. That would look better, but it's a lot more work. Poured-in resin would have the same effect, but you may have to buy far more than you need, and it may not adhere all that well.

 

Two part resin comes in two parts; that's just how it is.

Once you've mixed in the catalyst, it hardens rather quickly, so it really doesn't have a shelf life to speak of. But it's easy, so don't worry about it. Just make sure everything is clean, measure the amounts carefully, and pay attention to the ambient temperature.

Don't mix it in your favourite cereal bowl, either, and try not to spill any on the carpet.

 

...probably that's it. Craft stores used to have this clear stuff that we would mount butterflies, flowers etc. sort of like paper weights (after hardening). Don't know if it is still avails.

 

I'd suggest from the back, because the resin will shrink away from the top surface a bit as it cures. If you can 'spray tack' the metal and stick that white vinyl you have to the front, you'll end up with a smooth finished surface. Tape would also work to hold the resin, but you'll end up with lines and you don't want that.

 

The ebay link shows how it fits against the carpet. I would think you will have a problem with the letters cracking or poping out of that thin piece of stainless steel if you don't use a rigid back plate. A thin piece of plexiglas on the back painted whatever color you want might work better. If you really want to fill in the letters I would consider gluing on some fiberglass screening over the entire back to help support the letters with whatever you decide to use (epoxy, bondo etc.).


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