Using Silicone for Lifecasting

silicone lifecast

Sometimes making cosplay pieces requires lifecasting. If you need a mask or glove/prop to fit precisely, lifecasting is the way to go. Instructables user riciavar laid out the basics using silicone and plaster bandage, and it looks more straightforward than I thought it could be. She recommends getting a friend to help out and emphasizes that it’s important to get a skin safe silicone and test a small portion before you slather it on. She used the Body Double set from Smooth-On since it comes with everything you need. Here’s how she applied the silicone:

I find using a brush for the first coat is the best way to capture all the details.

Make sure your model maintains the desired posture through out this process, the silicone will begin to cure by the time your first coat is done. It will get thicker and emit some heat during the curing process.

While the first coat is curing start mixing up silicone for the second layer.

This layer does not need to be as precise and you’ll be applying more material to build up a thick mold wall. You may find using a large popsicle stick to apply silicone is more effective.

The silicone will want to drip off of your model as your’re applying. This is where having an assistant can come in handy. They can catch and re-apply the dripping silicone while you add new silicone to conserve time and materials.

Repeat this process until you have a roughly uniform .25″ wall thickness throughout your mold.

Remember to apply silicone about an inch or two past the area you would like to make a cast of. This will make the casting process easier.

The finished casting:

silicone lifecast finished

Read more at Instructables.


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.