Modelling > Tips, Tools & Techniques
Silicone Mould Boxes
kitnut617:
When I make my mould boxes, I use Lego bricks. But there's a big problem you have to fix before you can. When the bricks are snapped together they "look" nice and tight ----- NOT! Used as they are, the silicone in it's fluid state will find any gap anywhere and the Lego boxes leak like a sieve.
To solve that I started using modeling clay by pushing it into the gaps, it's a lot of work not just applying it, but cleaning up afterwards too. Very messy ----
But I've found something else to use which works fantastically, Plumber's Teflon Tape. I just lay strips of it on top of one brick layer before I snap on the next level. It seals the joint and then afterwards, being Teflon, just peels right off.
Another plumbers item I use it the glue, Lego is made from ABS plastic, so is the black plastic pipe plumbers use. I've made a number of sides up by gluing the bricks together, saves on using tape all the time ---
Frank3k:
The Teflon tape is a good suggestion! I would keep the same bricks together - the hardened silicone would act as a seal. But you can’t always get the same bricks in the same spot. I’ve also tried standing on the bricks, but that still doesn’t fully seal them.
Buzzbomb:
Good idea.
I got a set of these laser cut boxes for a local Aussie guy Laser2Stun.
Hopefully you can see this image.. his site is on Facebook
Which go together like this
Size is limited but for the majority of moulds, more than adequate, I have found leakage to be minimal.
Jeffry Fontaine:
I saved up a few containers that previously held sliced lunch meats such as roast beef, ham, turkey, etc. These are shallow in depth about 5cm X 12cm long and 9cm wide. They also have a hard lid so keep the contents fresh[er] after unsealing the inner bag. I figured these containers would be ideal for creating moulds but have yet to proceed down that path.
Frank3k:
--- Quote from: Jeffry Fontaine on May 21, 2020, 07:41:42 AM ---I saved up a few containers that previously held sliced lunch meats such as roast beef, ham, turkey, etc. These are shallow in depth about 5cm X 12cm long and 9cm wide.
--- End quote ---
I use those to keep parts, especially when I'm collecting bits for a build.
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