User Guide for Siraya Tech 3D CAST UV Resin
Cast is an affordable castable resin designed for lost wax method. Below is the recommended print setting, cleaning, curing and burn out recommendation.
The ideal printing temperature for Cast is between 25-35C (resin temperature).
Cast is designed for MSLA printer in mind. It can work in DLP and laser SLA printer but you would need FEP film based vat. Since it is mostly for small jewelry, use the smallest build volume printer for printing
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Exposure: |
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| Recommended |
Resin Temperture 25-35C
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Room temperature 20-25C
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| Printer | Layer Height | Exposure (s) | # of Initial Layers | Exposure for Init Layers | Exposure (s) | # of Initial Layers | Exposure for Init Layers |
| Photon | 50um | 18 (s) | 5 | 80s | 18 (s) | 5 | 80s |
| EPA X1 | 50um | 15 (s) | 5 | 65s | 15 (s) | 5 | 65s |
| Photon S | 50um | 15 (s) | 5 | 65s | 15 (s) | 5 | 65s |
| Mars | 50um | 15 (s) | 5 | 65s | 15 (s) | 5 | 65s |
| Mars 2 Pro | 50um | 4s | 5 | 35s | 4s | 5 | 35s |
| Mono | 50um | 3.2s | 5 | 30s | 3.2s | 5 | 30s |
| Sonic Min 4K | 50um | 4.6s | 5 | 40s | 4.6s | 5 | 40s |
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Please Keep Lift Speed under 50mm/min for Cast resin no matter what printer you use.
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| Cleaning: |
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Use a painter brush (or any brush made with hair) remove excess resins on the printed part with Use 95% concentrated Ethanol (preferred) or IPA to clean. Some form of methnol should work but make sure it does not contain acetone.
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Do not submerge the parts in alcohol for more than 30 seconds. After 2-3 minutes of cleaning action, remove alcohol with a hair dryer or air blower. For complex part with lots cavities, it may be a good idea to clean/dry multiple times.
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Dry as quickly as one can once the print is cleaned with compressed air
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Surface should be matte, if you see shiny spots, repeat cleaning on those spots.
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AVOID USING WASH AND CURE ALL IN ONE MACHINE
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| Post Curing: |
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Make sure print is completely dry before proceeding.
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It is important to fully cure Cast to ensure clean burnout.
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It is also important to ensure print does not absorb moisure as it may also affect burnout results
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We recommend putting print in glycerine to speed up curing without getting water on the print.
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Curing time varies with light fixture but most likely to be over 10 minutes and longer.
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AVOID USING WASH AND CURE ALL IN ONE MACHINE
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Fully Cured Print Should feel hard and a bit brittle
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Mechanical Properties
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| Shore D 70 |
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Tensile Strength 20Mpa
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Young’s Modulus 600Mpa
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Elongation At Break: 5%
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| Viscosity: |
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Heat Deflection Temperature: 50C
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| Shrinkage |
