if i mixed some concrete then left it in a mold when it dries would it dry nice and shiny or what?

reasd

sort by: active | newest | oldest
mikeasaurus8 years ago
Here are a few methods that will crate a 'shiny' finish, combine them as you wish to achieve desired reflectivity. Since buffing/polishing can be tough work, ensure your mold and concrete are acceptable before you start, this will minimize the time spent polishing.

Mold:
The less imperfections here the better you finished piece will look. Try to use a mold with a smooth surface and with no debris.

Concrete (type):
There are quite a few varieties, and they will all have their pros and cons. If you are looking for something ornamental and strength isn't really an issue, then try to look for concrete with small or little aggregate. They do make 'tinner' concrete which you can buy commercially, though a bit more expensive the results are amazing.

Polish:
This is the end process. When you have done all you can with teh above 2 steps you must turn to polishing. This is labour and time intensive. Use the correct grains from course to fine just like when working with wood. When you've got it really really smooth and awesome, slap on some sealer to keep your work looking new.

Good luck!
Kiteman8 years ago
If the mold is shiny, then, yes, like this example.
sharlston (author)  Kiteman8 years ago
what if i used a takeaway box for the mold?
Aluminium foil - it should come out fairly shiny. Cardboard box - it will need polishing.
sharlston (author)  Kiteman8 years ago
yes that was why i asked this question
if you look at the homemade concrete worktops instructable it gives a detailed account on how to polish it!!!
lemonie8 years ago
Concrete is funny stuff, you don't usually get "shiny" from it. But you could finish it to shiny. Anyhow you're going with tile-adhesive aren't you? L
sharlston (author)  lemonie8 years ago
yes im expermenting with different adhesives and things
rickharris8 years ago
And /or you can polish concrete.