New Mexico Clay Pottery Supplies and Ceramic supplies and equipment

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New Mexico Clay
3300 Girard NE Albuquerque
New Mexico 87107 USA
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	Rubber, Smooth On
	Jiffy Mixers
	How to mix Plaster

USG Plaster

Click here for CURRENT prices! Producing Plaster requires Diesel for the mining equipment, Natural Gas for cooking the water out of the raw material and more Diesel to get the plaster here by truck. For this reason the price of plaster has increased in the last year, A lot!

How to mix Plaster:

Always weigh out the amount of plaster you need, then look up the water by weight percentage. For example USG # 1 Pottery for making molds uses 70% water to plaster. So 10 lb. of plaster requires 7 lb. of water. First weigh out the plaster you need, take that amount and multiply it by .7,(point 7), (7/10) this gives you how much water to use.
Generally speaking the larger the percentage of water the softer and more absorbent the plaster will be. The harder the plaster the less water used.
Hot water will speed up the set time and cold water will slow it down.
Place the water in a suitable sized container. Always add plaster to water. Pour the plaster into the water and let slake for one minute. Mix by hand or with a Jiffy Mixer, being careful not to suck air into the plaster. When the mixture is lump free it is ready to pour; don’t wait for it to start to thicken.

Green Soap per gallon

Jiffy Mixers Stainless Steel Mixers for Plaster, Slip Making or Reclaiming, or glaze mixing

Rubber, Smooth On

PMC-746: Flexible Mold Compound for Master Molds, developed specifically for making ceramic molds. Two part A mix to one part B, Shore hardness 60, 15 min. working time, 16 hours cure. Gallon Kit makes three gallons

PMC-744: Flexible Mold Compound for Master Molds, developed specifically for making ceramic molds. Two part A mix to one part B, Shore hardness 42, 15 min. working time, 16 hours cure. Kit makes three gallons

Brush on-50: Brush on 50-50 mix, easiest to use, cheapest, not as strong. Makes 2 gallons

Video: Mold making with 724 brush on urethane

Urethane spray release agent, use with all urethanes. for 18 oz.

Accelerator DI53-25, for 744,121,724, use 1part to 100 parts rubber

KLEAN CLAY for sculpting will not effect urethane rubbers

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