benniejordaan
Sealiner
oomfaan wrote:
1 - It is impossible to remove all the air bubbles. When you close your mould and pour hot material into the mould, the air bubbles in the silicone expands and eventually pops leaving those marks on your spoon.
2 - It isn't as stable as mouldmax 60 and by the time you pour the second spoon it starts deforming and pulling out of shape.
3 - The mould deteriorates quickly.
Rather use MM60. The mould won't last as long but I reckon I get 30-40 spoons out of a mould and they are quality castings. To get a nicer finish, dust the mould with talcum powder.
Mouldmax 30 is not the right stuff to use for a number of reasons.I made a mold with mold max 30, but the spoon does not come out smooth. It seems as if the silicon gives off a gas as it makes indents in the metal. I used pure tin to make the spoon. What did I do wrong?
1 - It is impossible to remove all the air bubbles. When you close your mould and pour hot material into the mould, the air bubbles in the silicone expands and eventually pops leaving those marks on your spoon.
2 - It isn't as stable as mouldmax 60 and by the time you pour the second spoon it starts deforming and pulling out of shape.
3 - The mould deteriorates quickly.
Rather use MM60. The mould won't last as long but I reckon I get 30-40 spoons out of a mould and they are quality castings. To get a nicer finish, dust the mould with talcum powder.