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J-500
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INDUSTRIAL INVESTMENT
GYPSUM-BONDED - IDEAL FOR ALUMINUM & COPPER ALLOYS
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$
85.00
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Description
Technical Specs
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GYPSUM-BONDED INVESTMENT FOR LOW MELTING ALLOYS
J-500� is a gypsum-bonded investment for low melting alloys, formulated to produce molds that facilitate in casts containing hundreds of extremely intricate parts. Both thin and bulky areas are captured with high dimensional accuracy and are easily released from molds revealing excellent surface finish. J-500� is suited for use with aluminum, brass and bronze and is available with or without the use of fibers.
Water-Powder Ratio: 40 mL / 100 g
Working Time: 8 - 9 min
Setting Time: 12 - 15 min
1-hr Compressive Strength: 1020 - 1180 psi
Fired Compressive Strength: 235 - 265 psi
Setting Expansion: 0.25 - 0.35 %
Thermal Expansion: 0.7 - 0.9 %
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Features
Developed for casting large flasks
High green and fired compressive strength
Cast hundreds of extremely intricate parts
High dimensional accuracy for thin and bulky areas
Easy to devest, revealing excellent surface finish
Suited for aluminum, brass and bronze
Available with or without fibers