I’ve been using dental plaster for over 30 years and love it. I bought a 50 pound box for around $30 around 20 years ago and it’s still like new. It works just like hydrocal and tough as nails.Mel
My Model Railroad http://melvineperry.blogspot.com/ Bakersfield, California Just turned 84, aging is definitely not for wimps.
I use dental plaster all time as well as hydrocal- works great. No issues with staining. In general I find the hydrocal is a creamer texture and the dental plaster feels a little more crystaline. I have used both of them extensively for rock castings and find very little difference between them in terms of use and results.
Guy
see stuff at: the Willoughby Line Site
This has been discussed a lot here. Most guys, myself included find that any casting plaster is good for our model RR, theres no need for super hard-- expensive plasters. Dan
I am working on redoing a section of my layout scenery and I have used hydrocal in the past. But in reading some online info about different plasters, one called Densite (a dental plaster) was mentioned. I was wondering about the working time differences between hydrocal and the Densite as well as how the Densite take stain or paint compared to hydrocal?
The Densite is attractive due to it's apparent hardness and lower cost but just want to be sure that I will not be getting into a situation where actually using it will prove to be more of a challenge than what I am used to.