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Gruber RJM-300

The products below are now a
Marshall-Gruber Supplies LLC product.

View these products on the
Marshall-Gruber Supplies website

These products continue to be available
from Gruber Systems as well.
GruberCare Interphase Wax Print

GruberCare Interphase Wax is a liquid blend of high-melting point waxes formulated as an interphase release to minimize dulling wax build-up caused by continuous use of Release Wax. When used in conjunction with GruberCare Release/Indicated Wax, time between mold strippings can be extended significantly. Use Interphase Wax approximately every 10 castings or when dulling wax build-up begins to appear on the mold surface.

Also available - GruberCare Spray Interphase Wax - 1 Gallon Spray

Order Information


32 oz Can



128 oz Can



Case of four (4) 128 oz Cans



5 Gallon Can


1 Gallon Spray