Differences in Alumilite forumlations - International Association of Penturners
     International Association of Penturners
Pens for Service Members
 
Support The IAP

Go Back   International Association of Penturners > Community Forums > Blank Making > Casting & Stabilization
  Forgot Password
Register FAQ Members List Search Today's Posts Mark Forums Read
Casting & Stabilization Making your own blanks & stabilizing wood blanks.


Logged on members can hide ads!

Welcome to penturners.org!

You've found the home of The International Association of Penturners. You are currently viewing our site as a guest, which gives you limited access to view discussions, photos, and library articles.

Consider joining our community today. You'll have full access to all of our content, be able to enter our contests, find local chapters near you, and post your questions and share your experience with our members all over the world.

Membership is completely free!!

If you have any problems with the registration process or your account login, please contact us.

Reply
 
LinkBack Thread Tools Display Modes
Old 11-09-2011, 02:21 AM   #1 (permalink)
Head Moderator
 
MesquiteMan's Avatar
 
Join Date: Oct 2005
Location: San Marcos, TX, USA.
Posts: 5,723
Photos: 18

Default Differences in Alumilite forumlations

Fist, let me state specifically and to the point, I do not work for, nor get paid by Alumilite in any way. I am just a very happy customer that has had the privilege of working closely with Mike Faupel, the owner, over the last 6 or 7 years. I thought I would state thins since I just did some videos for them and don't want anyone to think I am on their payroll somehow!

With that out of the way, I thought I would list the various formulations of Alumilite and a little about them. I have used every one of their casting resins over the years and since I see the question frequently of which one to use, I thought this might be helpful to someone. I will focus only on the resins commonly used in pen blank casting.

First, some definitions:

Pot Life: This is the amount of time you have to get the resin poured into the mold and under pressure. It begins sometime after you have started mixing the 2 parts

Viscosity: The "thickness" of the resin. The lower the number, the thinner the resin. Compare this with the CA that you use as they both are rated in Centipoise (cps)

Demold Time: The amount of time you need to let it "cure" before removing it from the mold

Shore D: The hardness of the cured resin. This is measured with a durometer and uses the Shore D scale. The higher the number, the harder the resin.

Elongation: This is the amount of "stretch" the cured resin has before it breaks. It is an indication of the brittleness of the resin for penturning and indicates how chippy it will be. Lower elongation equals more chippy and likely to blowout.

Temperature Resistance: The temperature where the cured resin will deform. This is important when sanding.

---------------------------------------------------------

-CLEAR RESINS-
Good for clear casting or casting where you want translucent swirls and depth of colors. Requires pressure or vacuum to get rid of bubbles.

Alumilite Water Clear
Their original clear casting formulation, thinner and less brittle than Alumilite Clear but does not polish up nearly as well. It also sets quicker and has a higher temperature resistance.

Pot Life: 5 Minutes
Viscosity: 400 CPS
Demold Time: 30-60 minutes
Shore D: 80
Shrinkage: .5 %
Elongation: 9%
Temperature Resistance: 155 F

Alumilite Clear (Formerly Alumilite Crystal Clear)
This is a formulation developed for the benefit of penturners. It polishes better than Water Clear but is more brittle but still WAY less brittle than PR, however. It also has a longer open time and is the preferred resin for pen turning.

Pot Life: 7 Minutes
Viscosity: 450 CPS
Demold Time: 45-90 minutes
Shore D: 80
Shrinkage: .5%
Elongation: 8%
Temperature Resistance: 140 F

Amazing Clear Cast
This is an epoxy casting resin and is NOT advised for penturning. It is real slow set and is more useful as a bartop finish or where you need a really slow setting resin.

---------------------------------------------------------

-OBSCURE RESINS-
Good for solid color or multi- solid color blanks. Does not give any significant effect when using metallic powders. Does not require pressure or vacuum.

Alumilite Regular
This is Alumilite's original casting resin. It is available in light tan or black. It is also the fastest setting Alumilite and does not have a lot of use for penturning. It is the most resistant to temperature, however.

Pot Life: 90 seconds
Viscosity: 190 CPS
Demold Time: 5-8 minutes
Shore D: 75
Shrinkage: .5%
Elongation: 7%
Temperature Resistance: 250 F

Alumilite White
This is Alumilite's thinnest resin but is also their softest. it is good for making multi colored blanks,

Pot Life: 2.5 Minutes
Viscosity: 90 CPS
Demold Time: 5-15 minutes
Shore D: 72
Shrinkage: .4%
Elongation: 10%
Temperature Resistance: 140 F

Alumilite RC-3
This is a good value resin. It is the cheapest of Alumilite's casting resins but is only available in gallons kits. It comes in light tan or black and has a high temp resistance.

Pot Life: 3 Minutes
Viscosity: 110 CPS
Demold Time: 5-15 minutes
Shore D: 74
Shrinkage: .4%
Elongation: 12%
Temperature Resistance: 190 F

---------------------------------------------------------

Here is some info on Polyester Resin for comparison sake:
Pot Life: 30 Minutes?
Viscosity: 450 CPS
Shore D: 78
Shrinkage: 4%
Elongation: 1.5%
Temperature Resistance: 160 F
Odor: VERY HIGH!

Hope this information helps someone!
__________________
Curtis O. Seebeck

The original, affordable home stabilizing solution!
Now available exclusively from TurnTex...Alumilite Clear and White in 1 gallon kits (1/2 Gal A&B)
www.TurnTex.com

Last edited by MesquiteMan; 11-09-2011 at 02:24 AM.
MesquiteMan is offline   Reply With Quote Top
Old 11-09-2011, 06:21 AM   #2 (permalink)
 
Join Date: Jan 2007
Location: Davison, Michigan, USA.
Posts: 258
Photos: 0

Default

Curtis:

Thanks for the post. The name change of the Crystal clear to clear had me thrown off.

steve
hehndc is offline   Reply With Quote Top
Old 11-09-2011, 07:34 AM   #3 (permalink)
 
Bree's Avatar
 
Join Date: Jun 2009
Location: Buffalo, NY
Posts: 1,736
Photos: 3

Default

Good info... maybe this should be in the Library??
__________________
Stay safe out there!
Bree

What a long strange trip it's been!
The 60's will never leave, if we refuse to leave them!!
Bree is offline   Reply With Quote Top
Advertisement
Old 11-09-2011, 07:40 AM   #4 (permalink)
 
Join Date: Jun 2009
Location: Bucksport, Maine, USA
Posts: 2,146
Photos: 25

Default

Just curious for reference, Curtis but do you know the Elongation % of PR?

To me the 1% difference between clear and water clear means a tiny amount, however when I do not know the % of the comparison it is hard to make an educated analysis.
__________________
-Dan Horowitz

Likes: (1)
witz1976 is offline   Reply With Quote Top
Old 11-09-2011, 07:59 AM   #5 (permalink)
 
Join Date: Jan 2004
Location: Fort Myers, Fl
Posts: 2,703
Photos: 2

Default

That is good. Thanks Curtis. This helps to clear up (no pun intended) some things when choosing the correct product. I must say that Mike is very helpul and available to communicate with. One question, does using pressure or not affect the Alumilite Clear in any way? I know that Don Ward has gone through a great deal of testing, but I am thinking of a solid piece not one with a tube in it.
__________________
Chris
cnirenberg is offline   Reply With Quote Top
Old 11-09-2011, 01:23 PM   #6 (permalink)
Head Moderator
 
MesquiteMan's Avatar
 
Join Date: Oct 2005
Location: San Marcos, TX, USA.
Posts: 5,723
Photos: 18

Default

Quote:
Originally Posted by cnirenberg View Post
One question, does using pressure or not affect the Alumilite Clear in any way? I know that Don Ward has gone through a great deal of testing, but I am thinking of a solid piece not one with a tube in it.
I am not sure what you are asking here, Chris? Both of the Alumilite clear versions need pressure when casting to get rid of the bubbles that occur due to the curing process. I don't believe Don has tested Alumilite with his alternate methods.
__________________
Curtis O. Seebeck

The original, affordable home stabilizing solution!
Now available exclusively from TurnTex...Alumilite Clear and White in 1 gallon kits (1/2 Gal A&B)
www.TurnTex.com
MesquiteMan is offline   Reply With Quote Top
Old 11-09-2011, 01:24 PM   #7 (permalink)
Head Moderator
 
MesquiteMan's Avatar
 
Join Date: Oct 2005
Location: San Marcos, TX, USA.
Posts: 5,723
Photos: 18

Default

Quote:
Originally Posted by witz1976 View Post
Just curious for reference, Curtis but do you know the Elongation % of PR?

To me the 1% difference between clear and water clear means a tiny amount, however when I do not know the % of the comparison it is hard to make an educated analysis.
I included data on PR at the bottom of the list. Silmar 41 has an elongation of 1.5%
__________________
Curtis O. Seebeck

The original, affordable home stabilizing solution!
Now available exclusively from TurnTex...Alumilite Clear and White in 1 gallon kits (1/2 Gal A&B)
www.TurnTex.com
MesquiteMan is offline   Reply With Quote Top
Old 11-09-2011, 07:59 PM   #8 (permalink)
 
Join Date: Feb 2011
Location: Sonoma Co. ,CA
Posts: 37
Photos: 0

Default

Thanks for all the info! Can I use a vacuum pump and chamber to get rid of the bubbles or must one use a pressure pot?
Thanks
JeffG
Jeff G is offline   Reply With Quote Top
Old 11-09-2011, 10:19 PM   #9 (permalink)
 
Bellsy's Avatar
 
Join Date: Jun 2008
Location: Elora, Ontario, Canada
Posts: 383
Photos: 0

Default

Great post Curtis. I was wondering if you have the same information about the West System 105 Epoxy and hardeners?

Dave
__________________
Dave in Ontario, Canada
Bellsy is offline   Reply With Quote Top
Old 11-09-2011, 11:20 PM   #10 (permalink)
Head Moderator
 
MesquiteMan's Avatar
 
Join Date: Oct 2005
Location: San Marcos, TX, USA.
Posts: 5,723
Photos: 18

Default

Quote:
Originally Posted by Bellsy View Post
Great post Curtis. I was wondering if you have the same information about the West System 105 Epoxy and hardeners?

Dave
Well, since West Systems epoxy is not a casting resin, I did not include it. However, I do have the info handy so here it is!

West System 105 with 205 Fast Hardner:
Pot Life: 9-12 minutes
Viscosity: 975 CPS
Cure to solid (thin film, thicker applications will cure faster): 6-8 hours
Shore D: 83
Shrinkage: NA
Elongation: 3.4%
Temperature Resistance: 118 F

West System 105 with 206 Slow Hardner:
Pot Life: 20-25 minutes
Viscosity: 725 CPS
Cure to solid (thin film, thicker applications will cure faster): 10-15 hours
Shore D: 82
Shrinkage: NA
Elongation: 4.5%
Temperature Resistance: 123 F

What else ya got? :)

Hope that helps some!
__________________
Curtis O. Seebeck

The original, affordable home stabilizing solution!
Now available exclusively from TurnTex...Alumilite Clear and White in 1 gallon kits (1/2 Gal A&B)
www.TurnTex.com
Likes: (2)
MesquiteMan is offline   Reply With Quote Top
Related Content
Logged on members can hide ads
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 06:28 AM.

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0

Content Copyright © 2003-2016 by Penturners.org, LLC; All Rights Reserved
Terms Of Service   Acceptable Use Policy