Part 2: How to make a 2-Piece Plaster Mold for Slip-Casting

This video demonstrates how to properly measure and mix plaster using the volume method. It also demonstrates how to make a 2-piece plaster mold to use for slip-casting.
For Part 1: How to Create a Bed for Plaster visit: • Part 1: How to Make a ...
To mix plaster: combine 1 part cold water with 1.5 parts Number one pottery plaster. Always start with water first, and add plaster to the water. Always use cold water, unless you want to speed up the set time of plaster. Never use Plaster of Paris.
Sift the plaster in slowly as to not create large lumps of plaster. Allow to slake (soak) for 3-20 minutes. If you let it slake longer than 20 minutes, it will begin to set up and you won’t be able to work with it.
After slaking, stir plaster for 3 minutes to fully absorb the water
Pour plaster
Special thanks to my former MFA professor, Mark Burns, who taught me nearly everything I know about plaster molds and mold-making.

[@tvsw_]

You are literally the best! Ha I wish you were my teacher! ❤️

[@norleendelapena1972]

Aside from the oil soap that you use, is the regular dishwashing soap works?

[@hanna.hulbert]

Amazing! thank you so much! 🙏

[@user-eh6te4kq3j]

You don't mention drying time for the murphy's oil soap nor if you diluted it w/50% boiled water. Can you please clarify? Thanks

[@tweetypie7823]

Amazing video thank you! But please wear a mask when your arms the plaster

[@youtubeuser1159]

Murphy oil soap

[@justuju1]

Can I use liquid soap as release agent?

[@ericawessmann2021]

is there a part 3?

[@LazarusOm]

When you slip cast for this type of mold do you drain out the excess slip or continue filling it to have a solid product?

[@paulkorakas8778]

another grand grand grand daughter of Leonardo Da Vinci

[@rafaelubiles3]

What a fantastic tutorial!! Thank you!

[@anthonykulakusky9564]

Wonderful commentary. Great job. Thank you.

[@jessicawhalen4027]

Thank you for all of your informational videos!

[@sarahhope7704]

Brilliant tutorial thank you!

[@micksmom2293]

Thank you for posting this video. it was very thorough and I learned so much!

[@000lumiere000]

Wow! You've answered all my unanswered questions. Thanks for sharing!

[@stephencraig7130]

Number 1 Pottery Plaster!!!

[@Momma_bee_katie]

great video, great detail. Thank you for putting this together.

[@sabrinabarilone5437]

omg Becky! I just did a search on how to make a two part mold and your video was the first to pop up. Ha!

[@Thechezbailey]

This video is a perfect explanation!