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Organic Forms

Scholarships available! Hot Glass Level 4 or 1-2 years experience recommended

Starts Mar 20
750 US dollars
Public Glass

Available spots


Service Description

March 20, 5:30-9:30pm | March 27 6-9:30pm | April 3 6-9:30pm Teachers: Marti Gorski and Ray Krein Max: 9 students - 3 benches Organic Forms invites students to explore glass not as a rigid object, but as a fluid, living material. Over three 3-4 hour sessions, participants will focus on the natural flow and movement of molten glass, experimenting with inclusions, interior spaces, layered color, and atmospheric effects. We will investigate how air, heat, gravity, and timing shape form embracing irregularity, softness, and sculptural possibility. This class encourages a shift away from strictly technical vessel-making toward more expressive, experimental forms. Students will create objects that blur the line between vessel and sculpture, considering glass as a fluid in motion rather than a fixed solid using irregular wooden molds, color application, and sculptural bits. Designed for those ready to loosen their approach and expand their visual language, Organic Forms is about curiosity, risk-taking, and discovering new ways of seeing and shaping glass. This class will provide students with color in the 2nd and 3rd class. Students will be encouraged to bring in their own color and other experimental materials. Syllabus: Day 1: Fluidity & Interior Space Slide Lecture (30 minutes) Artists exploring organic, fluid forms Interior space, enclosures, and sculptural glass Glass as atmosphere rather than object Hot Shop Exercises (Clear Glass Only) Focus: Loosening technical habits and approaching glass as a fluid material Blow without and without tools (including Marvin Lipofsky’s tools and forms!) Create layers and interior voids Explore inclusions and trapped air Investigate interior vs. exterior form Emphasize flow, gravity, and responsiveness Day 2: Color Exploration Focus: Surface, reaction, and how color transforms organic form. Technique 1: Powders & Frit Roll and sift powders onto hot glass Use clear frit to build layered surfaces Explore opacity, translucency, and depth Technique 2: Bar Mash / Painterly Mixing Mash color bar for blended application Observe chemical reactions between colors Explore color interaction and expressive surface Day 3: Collaborative Sculptural Form Focus: Synthesis, risk-taking, and expanding sculptural vocabulary in glass. Bench-Based Final Project Work in teams to design and execute one sculptural piece Incorporate interior space Use layered bubbles, inclusions, powders, or bar color Emphasize experimental, non-vessel forms


Upcoming Sessions


Cancellation Policy

For help with your booking contact info@publicglass.org Cancellation Policy: No credit or refund can be issued if a cancellation occurs 9 days or less before your class date. This helps us guarantee stable wages for our hard-working artist instructors. If a cancellation occurs 10 days or more before the start of class, please submit a written request to operations@publicglass.org as soon as you know of a possible conflict. Your account will be credited with the cost of the class. You can apply this credit to a future class, our online shop, or event. Please email operations@publicglass.org to use the credit on your account. Excessive rescheduling will result in an administrative fee. ​ Online class registration closes 2 days before the first session. For late registration, questions or guidance on our programs, please email us at: info@publicglass.org. As a small nonprofit, our goal is to keep access to the studios affordable and to employ the independent artists who have committed to teach you. Monetary refunds are issued at the discretion of management. In the rare case that we are able to issue a refund, our processing platforms will keep a minimum of 10% non-refundable fees. Keeping the credit on your account is highly encouraged. It ensures that you get to keep 100% of your credit while supporting our artists and community. Thank you for your support and understanding.


Contact Details

  • 1750 Armstrong Avenue, San Francisco, CA 94124

    415-671-4916

    Operations@publicglass.org


Address

1750 Armstrong Ave
San Francisco, CA 94124

Gallery & Office

By appointment

 

Please email

info@publicglass.org

to arrange a time or arrive early for class.

​​

Rental Hours

CLOSED MONDAYS

 

Tuesday to Friday

8am to 9:30pm

 

Saturday & Sunday

9am to 10:30pm

Public Glass is a 501(c)(3) non-profit organization; Tax ID #94-3253918.

All or a portion of donations may be tax-deductible as prescribed by law.

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