Smooth-On | Making a Platinum Silicone Mold of an SLA Printed UV-Cure Model @smoothon | Uploaded August 2021 | Updated October 2024, 4 days ago.
Making rubber molds and multiple castings of 3-D prints made with SLA is often a goal of model makers. As 3-D printing technology using SLA resin continues to evolve, there are best mold making practices that can help you be successful.

Platinum silicones offer the advantage of dimensional stability and long-term library life. However, platinum silicones are more subject to cure inhibition against a UV cure resin model that is not fully cured.

Smooth-On platinum cure silicones will work against most SLA 3D print models with one caveat; the printed model must be fully UV cured. When models are done printing, they are not fully cured.

Mixer print file can be found here: thingiverse.com/thing:4648372

Read our full guide here: smooth-on.com/support/faq/210
Printer-friendly version: smooth-on.com/assets/pdf/Molding%20UV%20Cured%20Resin%20Best%20Practices%20Guide.pdf

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