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Author Topic: Casting Materials  (Read 20441 times)

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Offline BT_VOL

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Casting Materials
« on: July 27, 2009, 06:26:24 AM »
Hi, I'm doing some research into the different types of casting materials used for casting and re-casting tools and scene marks. Currently using Isomark for the majority, also Permlastic and Silcoset. Anybody use anything different?
Looking to reproduce high levels of detail with a rapid cure-time.
Many thanks


Offline Ray Cooper

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Re: Casting Materials
« Reply #1 on: July 27, 2009, 06:38:28 AM »
We have used Mikrosil for quiet a number of years and have had good success with it.

Ray Cooper
834 Cooper Rd.
Dubach, LA.  71235

Offline Bob Hart

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Re: Casting Materials
« Reply #2 on: July 27, 2009, 07:21:43 AM »
I have had very good results with a product called Coe-Flex (Coe Laboratories).  It is less reflective than Mikrosil and has the advantage of being available locally at dental supply companies.  It is a polysulfide offered in different consistencies. We used injectible, the thinnest.  You may be able to find it or a comparable product locally.

Offline BT_VOL

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Re: Casting Materials
« Reply #3 on: July 27, 2009, 07:38:02 AM »
Many thanks for the replies, we have also used Mikrosil with good results, although I have not heard of CoeFlex. I'm in the UK so will have a look at the availability of similar dental materials here.

Offline Travis Spinder

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Re: Casting Materials
« Reply #4 on: July 27, 2009, 08:12:08 AM »
Forensic Sil from Forensic Source would be my vote.  It is much like mikrosil but the mixing and application is 1000X better.

Offline Scott Doyle

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    • An Introduction to Forensic Firearms Identification
Re: Casting Materials
« Reply #5 on: July 27, 2009, 08:39:55 AM »
I'm with Travis.  Forensic-Sil is the only way to go!  May be a little higher in price than some (maybe not as I don't know what the others cost) but you will get you money back two-fold in time saved. 

No clean up involved and no waste!  Can be easily applied without getting it all over everything (unlike Mikrosil  :) ).

Quality of the cast striae is on par with Mikrosil.

Offline Frans Maritz

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Re: Casting Materials
« Reply #6 on: July 27, 2009, 08:51:53 AM »
We use AccuTrans, similar to Forensic-Sil, excellent product:
Frans A. Maritz
FA/TM Examiner
State of SD Forensic Laboratory
Division of Criminal Investigation


  • Guest
Re: Casting Materials
« Reply #7 on: July 31, 2009, 10:24:15 PM »
we use both Forensic Sil and Mikrosil

I like forensic  sil better. it is so much easier to use.   however, it's a good idea to:

A) remain proficient with mikrosil ( make the trainee's use mikrosil before forensic sil)

B) Keep some mikrosil on hand for thse times when you are in the middle of a case and you run out of applicator tips!!


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