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Ethyl Silicate or similar binders seem to be ideal for my casting process. It is water soluble, minimally reactive, and able to withstand high temperatures. I have contacted several investment casting supply companies for more information, but my interest has not been returned, I fear because...

Ok I have another problem, when I go to save the sketch as a pdf, it cuts the sides of the sketch off and forces the PDF into a letter sized page. How can I get it to save as a PDF with a landscape sizing?

thank you very much

I have an assembly that I am trying to overlay a concept sketch on. I made a drawing and sketched the concept on top of a cutaway view of the assembly. It looks good except the lines are not thick or highlighted, how can I get them to stand out a bit more?

like sandcasting in that the flask is loaded with mold material? yes

ah so. this is definitely an issue... conquerable? perhaps... I am going to probe a little deeper some of the companies I have been chatting with...

Is there any reason why using a slurry coating as a solid mold, like a plaster mold in a vacuum flask, won't work? I have a casting process that currently uses a vacuum flask, and a plaster to cast non-ferrous alloys. Due to the superheat and reactivity of my copper casts, it has become a real...

I have all the equipment for baking out the wax, and a vacuum flask setup for creating the mold. Here's another interesting question, which I am going to post in another thread because it deserves the attention. Can something that is normally used as a slurry coating, be used as a solid...

Hey everyone, this is my first post. I need to make a plaster mold that is non reactive with copper and can be removed with ease. The mold will be highly intricate, so the copper is poured at a superheat temp of 2100F. Any ideas? So far I have done this: tested a sulfur based casting plaster...