Group study of casting material

Trial on different material

After neil's lecture our instructor told all that lecture in practical manner he told us that how make mould on modela and after that how put the casting material.

After this we collect all material of moulding and casting and we distrubute all material to each person.

Then we meet together and discuss all the points of tha material.The information for that material is given below.


Instamold -it is used for making mould very fast.You can make perfect reproductions of any object in minutes using Non-Toxic and Safe INSTAMOLD .The Below chart is of prapostion of water and instamold material

then we will take material with mesurment according with above table.


In our lab there are some mould of fab academy logo so i used it for our trile


If we not well mixed the material then it creats the clot so in above diagram in first 3 mould there are clots but in last one no clots are created

output of above casting


Then i make one circular patteren with 1:1 proportion of water and instamould material.and i make mould with that for making key.Then i press the key in that material.


we dont have any material of casting for key then we decide us aluminium film but it is not melted with normal burner then we moving towards the gas welding section.and we melt that aluminium part with 1300°C but unfortunatly the material was not clean so it forms coagulation.



Hydrostone-This is more useful for the casting but its setting time is very less .in last year my friend made fab isp cover so i was used that rubber mould and the casting material is hydrostone.



it is good material for casting it takes 1 day to dry

Rubber this material is used for casting and moulding. this material takes 3 days to dry but it is flexible so it is good for casting and moulding.




From above all trial i decide that i will make mould on wax and cast it by rubber solution.