Some castings are made in sand that is a mixture of:
Silica Sand
Benton (Organo Clay)
Polybutene
Alcohol
The Polybutene is used as a binder.
The advantage it has over oil is that it smokes less.
The problem is that it is difficult to buy in small quantities.
Some people use synthetic 2-stroke oil because it has some Polybutene in it.
Does anyone have any ideas where Polybutene can be purchased in 5 gallon quantities?
Or any alternatives to Polybutene that could also serve as a smokeless binder?
Any ideas how a high flash point motor oil would work?
Silica Sand
Benton (Organo Clay)
Polybutene
Alcohol
The Polybutene is used as a binder.
The advantage it has over oil is that it smokes less.
The problem is that it is difficult to buy in small quantities.
Some people use synthetic 2-stroke oil because it has some Polybutene in it.
Does anyone have any ideas where Polybutene can be purchased in 5 gallon quantities?
Or any alternatives to Polybutene that could also serve as a smokeless binder?
Any ideas how a high flash point motor oil would work?