SL420 Filled Pattern Wax  The Only Filled Wax Producer in China


SL420 Filled Pattern Wax  The Only Filled Wax Producer in China
SL420 is a filled pattern wax with 20% of inert polymer filler. It is suitable for industrial investment casting, has a low viscosity and can be used to produce thick and thin sections. The patterns can be accurately and consistently produced to tight tolerances with low levels of contraction and sinkage.
 
Features
EXCELLENT DIMENSIONAL STABILITY - SL420 has superior dimensional stability because linear shrinkage and sinkage are reduced when using a filled pattern wax. Now it is used in high precision castings.
HIGH STRENGTH - SL420 patterns will maintain their shape even at elevated ambient temperatures. The patterns will not distort during handling, mounting and shelling. It is the first choice of high precision castings.
LOW ASH CONTENT - The ash level is below 0.03% ensuring there is no contamination to the metal.
HIGH PRODUCTION RATE - SL420 reproduces fine details accurately and has a smooth surface finish.
GOOD MOLD RELEASE - Mold release is fast and easy.
 
Applications
SL420 can be used in a paste condition to gain the benefits of a lower shrinkage and sinkage rate or injected as a liquid. Using at lower temperature speeds up the pattern production rate but liquid injection at a slightly higher temperature is recommended when injecting around ceramic cores.
 
Typical properties
Viscosity at 99 oC         IP71       150-300 cps     
Viscosity at 80 oC         IP71       400-700 cps         
Penetration at 25oC        IP49       3.5-5 dmm          
Softening Point            IP58       65-75℃     
Drop Melting Point         IP 371    73-80℃        
Congealing Point           IP76      62-65℃       
Filler Content              SPL       19.5-20.5%           
Water Content             SPL        ≤0.15%          
Ash Content               SPL        ≤0.03%                            
Shrinkage                             0.7-0.8%    
Form of Supply                        Pastilles
 
 
Recommended Injection Temperature
LIQUID       150 - 600 psi        70℃ to 85℃          
PASTE       150 - 600 psi         60℃ to 70℃