I have purchased them from Exotic Blanks, Turners’s warehouse, and perhaps a couple of other places. All were precast steampunk blanks that needed substantial trimming and the usual sanding flush before turning.
I do not cast yet, but this clear material would be on my list if I jump in.
I have also bought and used those "same" so-called steampunk blanks. . I don't know for sure, but I think they are made with a polyester resin, often just called PR for short. . I could be wrong on that, but that is what I think ... ready to be corrected if necessary.
I actually disagree with you saying they are easier to trim and turn compared to Alumilite. . And I say that because I have had PR blanks chip.
I have never had Alumilite chip. . But having said that, I have to say that I do all my turning on a metal-working lathe at a speed of 400-1200 rpm.
That could make a difference. . Also, the name Alumilite is a company name and can refer to a variety of casting materials. . I think that a lot of us may use that name to refer to one specific product made by that company which has been popularized by certain pen-blank-making "maestros".
A common polyester resin is Silmar 41, as you may already know, and I believe that is the casting material that I have turned most.
Here is a comparison of Silmar 41 polyester resin with Alumilite (which, by the way, is a brand name and does not refer to the material composition)
Which do you prefer and why? I am in need of some resin and want to decide which to order. I have been using Silmar 41 with good results, but everyone says how good Alumilite is, so I am confused. Please help, Steve
If you do a google search for Silmar 41 you will find a lot of information and comparisons with other casting materials.
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