melting plastic over model

For a project I had to make a pair of scissors. I was wondering if anyone knows an easy way to coat a high density model in plastic to coat them or anything of that nature.

Thank you and I am open to other suggestions

You could dissolve some styrofoam cups with acetone. It’s a bit crude but does work.

What is the purpose of what you’re asking?

This might help someone give you a better answer.

e.g. are you looking for a soft touch rubber feel? are you looking to cast an existing pair of scissors in order to duplicate?

Similar to a slush-dip process, you can buy this in some home improvement stores.

http://www.plastidip.com/

Two Options

  1. Make a silicone mold of your part. Then pour Liquid resin in. Kinda time consuming. But you can easily make multiples.

http://www.tapplastics.com/info/video.php

  1. Buy a can of Plasti Dip and spray away. Gives a soft rubbery feel that fools everyone. I used it on some handle mock ups and people thought they were actually made of soft touch rubber. This was with the aerosol version BTW.

http://www.plastidip.com/

I’m thinking plastidip from your description. Don’t rule out making your form in yellow foam/wood and gluing it over your scissors. If it is an appearance model, pick the process that you can do the quickest/cheapest so you work efficiently.

If this is literally what you want to do (and I think you got some good suggestions for alternate methods) the easiest material to work with is called “Jett Sett” - it’s a very low-temp thermoplastic that can be melted by immersion in hot water, and molded by hand around a tool to make an ergonomic handle. It sets up to a hard white plastic resembling HDPE. Jewelers use it to hold onto work that’s irregularly shaped for stone setting- once that’s done, it can be reused indefinitely. Here’s a source:

http://www.contenti.com/products/stone-setting/510-620.html

Andrew Werby
www.computersculpture.com