Previous in Forum: Can I Use Silicon Carbide Abrasive Belts?   Next in Forum: Roto-Molding with a Composite
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
2 comments
Rate Comments: Nested
Dark Shadow
Participant

Join Date: Jan 2011
Posts: 4

Dwell Time

08/20/2012 11:14 AM

I need the forums help on this one.

I am trying to get the definition of "dwell time" as it would pertain to a casting procedure. The casting is latex rubber and the procedure is absorption casting.

I have never heard it used in this context, but I thought I would ask the CR4 professionals.

Thanks ahead,

DarkS
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
jlstitt2
Commentator

Join Date: Dec 2010
Posts: 89
#1

Re: Dwell Time

08/20/2012 4:52 PM

dwell time means "start to finish"
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
4
artsmith
Guru
Hobbies - CNC - New Member Popular Science - Biology - New Member Hobbies - Musician - New Member

Join Date: Dec 2008
Location: Canada
Posts: 3523
Good Answers: 146
#2

Re: Dwell Time

08/20/2012 4:56 PM

Dwell time is the amount of time your latex is allowed to sit in the mold.

"Latex works best when use in a plaster mold. Latex is air drying and relies on the absorption properties of unsealed plaster to draw the moisture out of the curing latex. Latex skins are built up to a desired thickness by the dwell time of the casting. Latex is poured into a plaster mold to the brim. As the latex sits or dwells, a skin is formed where the liquid latex meets the plaster. The longer the latex sits in the mold the thicker the skin gets. Thick castings sometimes require a day or more dwell time."

From the special effects section on latex mask making and foam props here.

__________________
 incus opella
Register to Reply Good Answer (Score 4)
No more Good Answers. Go to first "Almost" Good Answer
Register to Reply
Have a Different Question?
2 comments

Good Answers:

These comments received enough positive votes to make them "good answers".

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

Previous in Forum: Can I Use Silicon Carbide Abrasive Belts?   Next in Forum: Roto-Molding with a Composite

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Manufacturing:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (63 right now)
Show Members
Advertisement