I loaded a bottle of Elastic 50A into my Form 4 less than seven days ago into a brand new tank with mixer. I printed several models with great success and got my desired white/clear post-processing results. I sent another print this morning but noticed, while removing the model, that the resin was discoloured and yellow. Twenty-four hours previously, the print pictured came out transparent. Any ideas as to what caused the resin to discolour so quickly?
I’m on Form 3L so my experience may differ but :
My resin tank and prints always have a yellow tint before curing them underwater.
After an underwater cure the tackiness and tint are gone and my result look like your finished part on the third picture.
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Good question @MurphKieran - We recommend to wash the parts as normal and then cure them. Wait 24-72 hours after you cure the part, and some if not all of that yellowing, should dissipate back to clear.