Binders for the carbon dioxide and self-setting silicate sand processes.
Use principally with dry free clay silica sand, but binds olivine, zircon, chromite and magnesite sands equally well.
Accuracy is obtained by leading to reduction in mechanizing allowances.
Binder processes one of the easiest and cleanest ways.
Less sand is required since the binder system process permits the use of hollow cores.
Bonding system are less expensive than those bonded with resins.
is a range of esters enhance the strength of bonded sand, complex chemical and physical changes occur that contribute to the hardening of cores