Taking the Mystery Out of How to Make a Concrete Sink Mold

Step 3: Preparing Model for Second Pour Of Vytaflex 40

Use modeling clay to fill in any surface irregularities. Place reverse baseboard down over the cured rubber and secure board with drywall screws. Turn the mold box over and remove the original baseboard to expose the model. Remove the spacer board and the clay gasket then wipe the surface clean. Fill any screw holes with modeling clay and hot glue any exposed seams. Apply Univeral® Mold Release to all surfaces.

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