does anyone have any experience with a high quality finish such as that on gfrc fireplace mantles. I need a mix design. and some tips would be nice. Thanks in advance
So after researching I have come to the opinion that Pearlite and portland cement make an excellent refractory with the major drawback being its inability to withstand heat much over 900 deg. F. If I am wrong about the temp please tell me. That's why I'm posting.
A major plus however is that...
So the part that I am trying to make is a dry cast concrete corbel.
That is my ultimate goal. I'm choosing dry cast concrete because once you are set up you can make parts continuosly and basically at your own speed. This as opposed to wet cast where one would have to cycle in and out of a set...
I need a bearing/wiper material to use on a slow motion sliding polished chrome rod think linear motion. short throw Like three inches. I would like the material to be castable at low temps and slide free of friction within reason. Fairly stiff as it would have a max 50 pound load on each...
