Wednesday, August 11, 2010

Technical Information

Vinegar Paper Clay Patch/ Repair method

Crush ½ cup of dried clay using a hammer. Use the clay you built with as the clay component for this recipe.

Take one sheet of toilet paper and rip into 1/4 inch X ¼ inch very small pieces. Soak in hot water until paper become pulp like. This can take 10 minutes. Remove water from pulp by squeezing and making paper into a little ball.

Add vinegar to the paper pulp. Then add clay and mix to a stiff paste. Add more dry clay to get really stuff but workable.

Mix ¾ of this patch with plastic clay. The patch needs to be stiff so add dry clay to make it stiffer if needed.

Wet crack with vinegar and sore until soupy. Compress patch into crevice . Pack it in well. Smooth out. Finally smooth with vinegar and a paint brush. Rib over area. Wrap and slowly dry.

This may need to be repeated 2 -3 time depending upon nature of crack, and dryness of clay.

Steps for Drying Plaster Molds

Plaster molds cannot be used right away. They need to be dry before use. To dry place in a heat ventilated chamber. The heat cannot rise about 121 degrees Fahrenheit or the mold will decompose when used because you have in effect recalcined the plaster.

What do we use – Here are your options:

A fan – place mold upright (like a domino) in front of a fan and dry. Turn the back to the front facing the fan every 4 hours. This will take 2 days for drying.

The sun - place mold upright in the bright sun.

Drying box - – place mold upright (like a domino) under a light in the drying box.

Home oven - place mold upright (like a domino) on aluminum foil. Set oven to lowest setting and keep oven door cracked. Heat for 15 min. Turn off oven. Close oven door. Repeat steps. This takes a lot of watching and is the most reisky but quickest way to dry your mold.

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