9. Molding and Casting¶
9.1 Materials¶
I checked the MSDS(material safety data sheet)s of the materials which my instructor sent to me and some other casting materials.
9.1.1 Modeling wax(as group assignment)¶
MSDS:
Ferris File-A-Wax safety data sheet
Likely a kind of paraffin wax for household products or snow sports. According to the safety data sheet, it seems non-toxic and less hazadous than other materials.
9.1.2 Silicone rubber and cure agent(as group assignment)¶
MSDS:
Shinetsu KE-12 safety data sheet(Japanese)
According to the safety data sheet, the silicone rubber seems relatively low reactive and low irritating. But take care to avoid eye contact or prolonged contact with skin.
But the cure agent is by far toxic and hazadous. Take full care to avoid eye contact or contact with skin.
Ethanol is released during reaction, so keep well ventilated.
9.1.3 Polyurethane resin(as group assignment)¶
MSDS:
3M NX-048 safety data sheet(Japanese)
More hazadous and toxic compared with other materials. Take care to avoid eye contact or contact with skin. Avoid using in a place with poor ventilation or possibiity of inhaling vapors.