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"Newb Question: Crystalcal, Hydrocal, but no resin please" Topic


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639 hits since 20 Mar 2015
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Comments or corrections?

warhawkwind Inactive Member20 Mar 2015 9:13 a.m. PST

I have asthma, so I really dont want anything to do with resins. Will these types of (gypsum???) materials work ok for 10mm buildings? I'm thinking of painting latex onto a building I made and then pouring a plaster-type material into the latex mold. Plaster of Paris is too soft. Thanx.

Personal logo Doms Decals Sponsoring Member of TMP20 Mar 2015 9:24 a.m. PST

Yes, they'll do the job just fine – hydrocal or dental plaster are both first rate – I haven't tried crystalcal.

JezEger20 Mar 2015 10:09 a.m. PST

link

Here's a good resource for product reviews and casting tips. You'll find the difference between dental plaster and plaster of paris is immense.

Bunkermeister Supporting Member of TMP20 Mar 2015 12:37 p.m. PST

Use hydrocal not dental plaster. Dental plaster is more expensive and sets too fast, often the material does not flow well into the mold before it sets.

Use Rit or other clothing dye to color the water and your plaster will be colored rather than white. White plaster can be hard to paint.

I am not sure the dust from plaster will be better for you than the fumes from resin. Check with the manufacturer and your doctor. Some resins, like those from Smoothon have very few fumes. YMMV.

Mike Bunkermeister Creek
Bunker Talk blog

warhawkwind Inactive Member21 Mar 2015 12:39 p.m. PST

Thanx everybody, like the idea of Hydrocal. JezEger that link is superb!

Bunkermeister Supporting Member of TMP23 Mar 2015 9:39 p.m. PST

By your Hydrocal from a local hardware store, not a model shop. It's a lot cheaper.

Mike Bunkermeister Creek
Bunker Talk blog

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