Slush-Casting Latex: Hydrocal or Ultracal Mold???

Houston Robocop

Well-Known Member
Howdy,

I have a personal project I'm working on that will be cast in slush latex.

It's been years since I've made anything from latex. I remember some stuff I learned from my short stint working in SPFX make-up, but it's been too long and my memory is rusty :$

Anyhow, is the standard mold material of choice still Hydrocal :confused

I stock plenty of Ultracal in my shop for making waste molds for resin casting and fiberglass work. I like it because it's much stronger and denser then Hydrocal.


My question is this...

(1) Will a Ultracal mold for molding latex be slower drying than a Hydrocal mold because it's more dense/less porious so it will take longer for the moisture to be drawn-out for the latex to form a thick skin?

(2) How long will the surface details of Hydrocal molds hold-up???

(3) And lastly, is there a need for mold release or some techniques for easy de-molding of parts???


Thanks in advance... Nick :cool
 
This thread is more than 15 years old.

Your message may be considered spam for the following reasons:

  1. This thread hasn't been active in some time. A new post in this thread might not contribute constructively to this discussion after so long.
If you wish to reply despite these issues, check the box below before replying.
Be aware that malicious compliance may result in more severe penalties.
Back
Top