Molding Sand

L/O/I                          0.01-0.35

Mgo                            0

K2o                            0.02-0.06

Na2o                          0-0.01

Cao                            0.07-0.2

Al2o3                        0.4-1.7

Fe2o3                        0.2-0.6

Sio2                           97-98

Chemical Spec.:

Casting                      60-70                     13-15                                    RT70A

Aluminum

well permeability                                    12-14                                     RT70L

shell Cores &           75-80                      16-18                                     RT70M

High Strength                                          26(kg/cm2)                           RT70H

                                                                10-12                                     RT90L

                                                                14-16                                     RT90M

Shell Molding         90-95                       24 (kg/cm2)                          RT90H

Application            AFS  NO:            HOT TENSILE STRENGTH     Code

Mold Atmosphere control

Great Collapsibility

Thermal Expansion decreasing

Hot shell Tensile Strength Increasing

Decreasing Pin Holes

Decreasing Gas Defects

Coated Sand benefits:

Few Roughness on castings

High dry flow ability

High Yield strength

We are ready to export Molding sand too which is used in casting industries with following spec:

This product use in casting industries-making machinery parts and all lhke this