EXCEEDED RECOMMENDED WATER / POWDER RATIO
REDUCE WATER TO WITHIN RECOMMEND RANGE (38 – 40/100)
NOT MIXED LONG ENOUGH
HAND MIXING – MIX 3 MIN. MECHANICAL – MIX 3 - 4 MIN.
METAL AND, OR FLASK TEMP TOO HOT
REDUCE METAL AND, OR FLASK TEMPERATURES
CURE TIME NOT LONG ENOUGH AFTER SET
LEAVE FLASK UNDISTURBED 1 – 2 HOURS BEFORE STARTING BURNOUT
INVESTMENT PROCESSED PAST AVAILABLE WORKING TIME
PROCESS NOT LONGER THAN 8 – 9 MIN.
MOLD HEATED TOO QUICKLY WATER / POWDER RATIO
SLOW DOWN RATE OF TEMPERATURE RISE
EXPIRED INVESTMENT IMPROPER STORAGE
USE FRESH POWDER WITHIN RECOMMEND STORE IN COOL, DRY AREA
WATER RATIO TOO LOW
ADJUST W/P RATIO TO: 38/100- VACUUM MIXING -40/100- HAND, MECHANICAL MIXING
NOT MIXED LONG ENOUGH WATER / POWDER RATIO
DO NOT MIX LESS THAN 2.5 - 3 MINUTES
INVESTING CYCLE TOO LONG
FOLLOW INSTRUCTIONS DO NOT PROCESS PAST 9 MINUTES
PATTERNS TOO CLOSE TO POUR BUTTON
LEAVE MORE SPACE BETWEEN BOTTOM ROW AND BUTTON
FLASK TEMP. TOO HIGH
REDUCE FLASK TEMPERATURE
SPRUED IMPROPERLY
SPRUE TO THICKER SECTION OF DESIGN
SPRUING TOO SMALL
SPRUE TO HEAVIEST SECTION OF DESIGN. USE LARGER GATE
PATTERNS TOO CLOSE TO POUR BUTTON
LEAVE MORE SPACE BETWEEN BOTTOM ROW AND BUTTON
FLASK TEMP. TOO HIGH
REDUCE FLASK TEMPERATURE
SPRUED IMPROPERLY
SPRUE TO THICKER SECTION OF DESIGN
SPRUING TOO SMALL
SPRUE TO HEAVIEST SECTION OF DESIGN. USE LARGER GATE
CONTAMINATED METAL
CLEAN METAL OF INVESTMENT, ETC.
FLASK TEMP. TOO HOT
REDUCE FLASK TEMPERATURE
INCOMPLETE BURNOUT
HOLD LONGER AT PEAK TEMP.
METAL REUSED TOO MANY TIMES
USE NEW, UNUSED METAL, OR MIX NEW METAL WITH REMELT
METAL OVERHEATED
REDUCE METAL TEMPERATURE
CRUCIBLE OLD, DETERIORATED METAL OXIDES
REPLACE WITH NEW CRUCIBLE REFINE METAL
SHARP CORNERS BREAKING OFF
INCREASE MOLD STRENGTH MODIFY DESIGN
TOO MUCH WATER USED TO MIX
DO NOT EXCEED 40% WATER FOR MIXING.
ROUGH MODEL SURFACE
POLISH MASTER MODEL & REMAKE RUBBER MOLD
TOO MUCH SILICONE. OR TALC MOLD RELEASE
CLEAN MOLD AND REDUCE SILICONE, OR TALC USED
FLASK TOO HOT
REDUCE FLASK TEMP.
METAL TOO HOT
REDUCE METAL TEMP.
EXCESS STEAM DE-WAX
REDUCE TIME IN STEAM TO LESS THAN ONE HOUR
FLASK NOT CURED LONG ENOUGH BEFORE BURNOUT
CURE MOLD A MINIMUM OF 1- 2 HOURS
PEAK BURNOUT TEMP. EXCEEDED
DO NOT EXCEED 750C.
METAL SPENT, REUSED TOO MANY TIMES
REFINE, USE FRESH METAL
METAL OVERHEATED
USE CORRECT TEMP. FOR CASTING