Hi all. I have just started to use the above for casting and wonder if there are any resources on the internet on how to use it. I have a few newbie questions:
What is the correct cement/water/sand proportion?
The cement is dark brown but produces a light grey bloom when it dries - how do you restore the original colour?
I understand it can be polished/patinated to achieve a bronze effect, what do you use for this?
Any info gratefully received
Hi Inigo, welcome to the forum
You might find the following article of interest as it answers a portion of your questions
click here please
Thanks Copper and thanks for replying so soon
That covers the first part of my question. I'd like to know what you can achieve regarding finishes etc. eg I read somewhere you can add Vermiculite to the mix but i'm not sure what effect that has
Oh yes, I've heard of that as well. Vermiculite can give that 'rough' 'texture'.
I will look into the exact amounts to be used for this effect...
To achieve a bronze finish try burnishing with a brass brush i.e. suede brush, or a Dremel attachment.
the ciment may pick up its bloom from the material it's cast in, eg a stoneware or earthenware slip releasing agent, or just the plaster?
try alectiranti on the web and by his book casting with cement fondue