Sculptural Slumping Masterclass Part 1

Lisa Pettibone, Surrey GU5 9LL
2-4 October 3-4 students, £425
This course is aimed at intermediate/experienced kiln-formed glassmakers exploring a variety of ways to control movement in the kiln with a variety of props and programming techniques. Students with minimal or no slumping experience will gain insights into novel glass forming processes. We’ll achieve this through a series of demos, visual presentations (explaining my own processes and other artists work) and two making projects. There will be creative prompts to investigate their sculptural ideas and why movement is so important in their work.

Working with both float and Bullseye glass, three kiln prop-making techniques will be explained so you can learn how to make your own: ceramic slip cast props (like store bought slumpers but your own design); hardened fibre blanket forms; moulded or carved refractory props. Extensive course notes with sample firing programs are provided along with all mould-making materials – students bring their own glass. Please email Lisa if you have further queries.

Lisa has been teaching kiln formed glass techniques for over 20 years at venues such as The Glass Hub in Somerset, the international Festival of Glass and Pilchuck Glass School in Washington, USA. She has a BA in Glass from University of the Creative Arts Farnham and an MA Art and Science at Central Saint Martins London. She has exhibited in the UK and internationally and is a member of the Royal Society of Sculptors.

Sand Casting Glass workshop

Description
Sand casting in glass is an incredibly creative and exhilarating experience.

Dive into the world of sand casting in glass—an unmatched opportunity for both beginners and seasoned artists. During this intensive glass casting day, you will design and craft three stunning glass pieces that you can proudly take home after a three-day cooling process in the kiln.

Your artistic adventure begins in the morning as you design and create sand moulds using a vibrant array of forms, shapes, and colours. Embrace your creativity and boldly incorporate metals and other unique elements into your designs. After a savoury lunch break, prepare to be captivated as you work with molten glass at a remarkable temperature of 1,150 degrees, straight from the furnace.

As you pour the liquid glass into your expertly crafted moulds, watch in awe as your vision transforms into breathtaking, one-of-a-kind glass artworks. You have the freedom to add vibrant colours, sparkling metals, and even delicate leaves between the layers, ensuring that the possibilities are truly endless. The results will undoubtedly inspire you, offering an extraordinary chance to immerse yourself in innovative glasscraft.

With guidance from two professional artists who possess exceptional expertise, this unique course is designed to ignite your passion for creativity and push your artistic boundaries.

If your plans change, you can confidently cancel your participation for a full refund up to two weeks before the course start date. We are also more than happy to accommodate requests for adjustments to start dates. Take part in this extraordinary experience and let your creativity shine!

What’s included in the price?
All materials are included, plus tea and coffee. Please bring your lunch.

Cancellation policy
Medium – Cancellation and a full refund can be obtained up to 4 weeks before the course starts

Rebecca Arday – From Life: Casting with Alginate – 7th, 14th, 21st, 28th July 2026

This is a live online class, taught over Zoom.

Learn to use alginate, an eco-friendly, affordable mould-making material, to create sculptural glass castings from life. Rebecca will demonstrate hand casting with the bucket method and face casting with the lay-up technique. You’ll create wax positives, refine them, and cast them into glass using a plaster-silica refractory mould.

Course price: £190.00

Learn to use alginate, a seaweed based, eco-friendly, skin-safe, economical mold making material, to create sculptural glass castings from life. Two styles of molds will be demonstrated: a bucket mold where the model is submerged (i.e., a hand), and a lay-up mold, where alginate is painted on and reinforced with plaster bandage (i.e., the face).

Alginate molds will then be used for creation of wax positives which can be manipulated if desired and ultimately cast into glass in a plaster-silica refractory mold. The course will cover the process from start to finish.
You can view more of Rebecca’s work here: https://www.rebeccaarday.com/

Skill Level
• Beginners are welcome, some experience with casting is helpful.

Course Summary
Discussions will include:
• Alginate Moldmaking
• Waxworking
• Hand-built Refractory Moldmaking
• Steaming
• Calculation of Glass
• Glass Selection
• Kiln Anatomy & Set-up for Firing
• Firing Schedule Theory
• Divesting
• Coldworking

Workshop Outcomes:
• 2 styles of single-use alginate molds
• 2 cast glass sculptures

Session Times
• Tuesday 7th July 2026 – 5.30 pm – 7.00 pm UK time (This session might be a little longer)
• Tuesday 14th July 2026 – 5.30 pm – 7.00 pm UK time (This session might be a little longer)
• Tuesday 21st July 2026 – 5.30 pm – 7.00 pm UK time (1.5 hours)
• Tuesday 28th July 2026 – 5.30 pm – 7.00 pm UK time (1.5 hours)

How it Works
• The course is made up of live and interactive online sessions using the Zoom platform. You will find the zoom link via the week chapters in the navigation panel.
• The artist will give a step-by-step tutorial with demonstrations, and you will have ample opportunity to ask them questions during the live class
• Each week they will demonstrate a technique for you to try between sessions
• A member of the Glass School team will also be in the Zoom class to assist you
• Mix with the artist and other students on our dedicated community page, open for the duration of the course. Then join our exclusive Glass School UK Online Glass Community Facebook group to continue to mix with those who have attended any of our online masterclasses
• A materials list is provided in the course navigation panel, so you can purchase what you need to create your pieces during the course. You don’t need absolutely everything on this list to be successful, the artist will discuss different ways to reach our technical goals.

All live online masterclass sessions are recorded, so if you cannot attend the live sessions or access your studio at certain times, you can watch the sessions back. These will be available for up to four weeks after the final session. Recordings cannot be downloaded or shared and by joining you agree to being recorded.

These recordings will be available in the course navigation panel.
• You will need a computer, tablet, or phone with a camera and microphone in order to join the online classroom. If you are unfamiliar with using Zoom then please take some time to look at our guide, available in the navigation panel.
• You should have a reliable internet connection, fast enough to make video calls or stream videos
• Please read the Student Participation Agreement
• Ensure that you have checked the materials list and purchased any materials you may require
• A pen and paper to take any notes.
• We restrict the class size to 30 people
• We teach using Bullseye Glass (CoE90)

Contact: Glass School
Email: info@glass-school.co.uk
Book your place

Masterclass: Spatial Imagery in Glass – Helen Slater Stokes at Morley College London – 21st – 24th July 2026 – 9:30AM – 4:30PM

This is an in-person course at Morley College London, North Kensington.

Join us for an in-person masterclass with Helen Slater Stokes at Morley College London in Summer 2026.
Over four days, you’ll explore a range of techniques for incorporating imagery into glass, from creating screen-printed stencils to producing your own decals. You will develop and apply these skills across multiple glass projects throughout the masterclass.
Course price: £850.00

What you will learn
Over four days, Helen will guide you through Spatial Imagery in Glass, exploring multiple approaches to developing imagery and translating it into kiln-formed glass. This masterclass is designed to expand both technical skills and creative thinking, offering participants a rich toolkit for incorporating imagery into their own practice.

You will explore a wide range of techniques, including glass sgraffito frit drawing, paper-cut stencil enamel printing, photo silkscreen enamel printing, and personalised decal transfers.

Helen will also provide in-depth instruction on screen-printing equipment and processes, including choosing appropriate silkscreens for different image types, correct squeegee handling, and working with liquid underglaze enamels.

Prior to the masterclass, participants will have the opportunity to prepare imagery for digital decals, which will then be incorporated into kiln-formed glass blocks during the course. Additional areas of focus include efficient kiln packing for tiles and blocks, embedding sgraffito frit drawings into larger works, and polishing finished pieces using minimal equipment.

This intensive masterclass offers a unique opportunity to develop technically advanced glasswork within a supportive and inspiring learning environment.

A member of the Glass School team will be on hand for the duration of the masterclass as well as teaching assistant and Senior Lecturer at Morley College, Maria Zulueta.

See more of Helens work here: https://www.helenslaterglass.com/
See more about Morley College London here: https://www.morleycollege.ac.uk/north-kensington-centre/
Skill Level:
Glass cutting experience is beneficial.

Masterclass Summary:
Summary of what will be covered during the masterclass:
• Creating paper-cut print stencils for glass.
• Choosing the right silkscreen for different image types.
• Setting up screens and working with a squeegee correctly.
• Exploring a variety of print processes using liquid underglaze enamels.
• Use printing clamps to achieve accurate image registration.
• Designing imagery for digital photo silkscreens or digital decals.
• Packing kilns efficiently to create perfect tiles and blocks.
• Applying waterslide decal transfers to kiln-formed glass.
• Making sgraffito frit drawings and embedding them into larger works.
• Using tools and techniques, including Ceraboard and minimal equipment, to polish and finish pieces.

Masterclass Outcomes:
• 10x10cm test tiles (approx. 4 each) working with Papercut Stencil Print, Photo Silkscreen print, and Waterslide decals.
• A block cast with internal imagery (approx. 15 x 10 x 3cm)
• A Sgraffito Frit Drawing (approx. A5).

What this masterclass includes:
• Glass materials, tools, equipment, and firings are included. Works will be completed on the last day so that you can take them with you. Packaging materials will be provided.
• Tea, coffee, drinks, and biscuits will be provided during the masterclass.
• Lunch is not included, but there are lots of shops, cafes and restaurants near the college
Please note: Digital decals are ordered and printed in advance; enrolments after 15th June will not be able to order personal decals but will have access to a selection of existing designs.

Timings
• 9:30am – 4:30pm – Tuesday 21st July 2026
• 9:30am – 4:30pm – Wednesday 22nd July 2026
• 9:30am – 4:30pm – Thursday 23rd July 2026
• 9:30am – 4:30pm – Friday 24th July 2026

Location
This class will be conducted at Morley College London at the following address:
Morley College
North Kensington,
Wornington Rd,
London
W10 5QQ

Morley College North Kensington is well served by public transport, with frequent bus routes and nearby Underground and Overground stations providing access from across London. There are numerous cafés and food outlets within easy walking distance of the college. Students are expected to make their own arrangements for accommodation, meals, and all travel.

What to prepare
• Please wear appropriate clothing and closed-toe shoes.
• Students are welcome to bring a packed lunch, or purchase lunch from local food establishments.
• All materials are included and all the necessary tools are provided.
• Your booking information will be emailed to you before the course date, containing any further class preparation details.
• We teach using Bullseye Glass (CoE90).
• Students must be over 18 years old.
Contact: Glass School
Book your place
Email: info@glass-school.co.uk

One Day Course: Stained Glass with Catherine Dunstan – Thursday 25th June 2026 – 10am – 4 pm (6 hours)

This is an in-person course at the Glass School studio.

Course price: £180.00

What you will learn
Come and learn the traditional craft of Stained Glass and make your own panel from scratch on this one day course with glass artist Catherine Dunstan.

This is a hands-on course where you’ll be introduced to many processes, including glass cutting, leading, soldering, cementing and polishing your piece.

You’ll get to choose from a large range of templates that will enable you to get a good grounding in the core skills, whilst also enabling you to finish your piece during the day, ready to take home and show off! Learn about different types of glass and choose from a wide range of colours and textures to suit your style.

You will be able to take your panel away with you on the day.

Skill Level and Essential Information:
This one-day course is suitable for beginners
Please wear closed-toed shoes and tie back long hair. Please wear clothes that you don’t mind getting dirty, or bring an apron. Due to the use of lead, it is recommended that pregnant women do not attend. Soldering flux derived from animal fat is necessary on this course, so regrettably, the course is not vegan.

Course Outcome
A 20cm x 15cm stained glass panel.

Timings
10 am – 4 pm (6 hours)

Location
This class will be conducted at our in person studio at the following address:

The Studio,
1 Westward Court
Westward Close
Wrington
Bristol
BS40 5JY

We cannot guarantee parking immediately outside the studio and rely on on-street parking on neighbouring roads. Therefore, a short five-minute walk is typically required. If this poses access issues, please get in touch with us before booking a class.

What to prepare
• Please wear appropriate clothing and closed-toe shoes.
• If you are attending a One Day Course. Please bring a packed lunch. Alternatively, there are shops and a pub serving lunches within walking distance of the studio.
• All materials are included and all the necessary tools are provided.
• Your booking information will be emailed to you before the course date.
• This in-person course will have up to 4 students.
• We teach using Bullseye Glass (CoE90).
• Students must be over 16 years old.

Book your place via the website
For more information contact: Glass School
Email: info@glass-school.co.uk

3 day Intensive Stained Glass Course at Dukes in East Lothian, 5-7 August

Come and indulge your creativity with a 3-day stained-glass workshop (5th -7th August) with Award winning artist and Tutor Kate Henderson.

This workshop will include time for you to experiment with techniques of glass painting, enamels and silver stain, an opportunity for you to develop a series of painterly marks or traditional images on glass. Then using lead along with a range of coloured glass create a stained-glass panel around 50cm x 40cm. This could be a fantastic opportunity to gain experience a new skill and create something beautiful for your home. Designs/templates can be supplied but I am also happy to guide you to create your own design to complete within the time frame of the course.

  • The course runs from 5-7 August.
  • All materials and use of specialist equipment is included in the course fee.
  • Course limited to six participants with no previous glass experience is needed.
  • A 10% (£450) discount is available for an early bird discount until the 31 May

See my website for further details: www.katehenderson.co.uk

Berlin: Trays of Wonder with Joseph Cavalieri

Learn fun and easy ways to add detailed images and patterns to your glass work. Joseph Cavalieri is excited to return for his fourth class, focusing on fusing and slumping trays with bold, colorful images. Starting with cutting glass, you will learning silk screening, penning, painting, and airbrushing enamels onto glass. Joseph will bring a variety of exciting silk screens for you to use. No prior painting or drawing experience is needed; you will learn how to trace images to bring your piece to life. Plan to make four or more final works during this four day workshop, plus many fired samples of all the techniques, and learn from Joseph’s popular art residency lecture, He will share tips he learned during his fifteen visiting artist residencies. These techniques apply to stained glass projects as well as fused glass projects. Joseph will discuss and bring samples of how to easily use these techniques with stained glass, but the focus of the class is fusing, slumping, and having fun.

Kiln-Formed Glass: The Sustainable Art of Repurposing with Julia Gonyou

Kiln-Formed Glass: The Sustainable Art of Repurposing with Julia Gonyou

10-11 September 2026 (Thursday-Friday)

9.30am-4.30pm 2 days

Location: CGUK Glass Studio – Rochester, Kent

Please join us for an environmentally conscious new workshop focused on exploring the possibilities of sustainable kiln-formed glass, using recycled glass bottles, and float glass.

Participants will learn how to break down these materials and artistically repurpose the glass – without the use of moulds – into unique compositions using pattern, shape and script. You will explore techniques using expressive mark-making, textural objects and cut-outs to create distinctive relief work.

Explore this more streamlined and Eco-friendly approach to glass-making while building practical skills and creative confidence to support your future work.

Projects
Students will have the opportunity to create 3-4 projects, including sun-catchers, and free-standing panels to take home/collect after final firing.

Skill Level
Beginner/Intermediate

Further Information
More about Julia can be found here: www.juliagonyou.com

All class materials and necessary tools/equipment are provided.

Refreshments are included, but please bring your own packed lunch.

Participants must be 18+ years of age.

Workshops are held in our well-equipped studio above our retail centre, accessed via 2 flights of stairs, there is no lift.

NB. A waiting list will be in operation once the class is FULL – please email info@creativeglassshop.co.uk if you would like to be added.

Stained Glass Course (mixed ability)

Stained Glass (mixed ability) with Shelly Kitto

20th April to 6th July 2026

10am-12pm or 1pm – 3pm 10 weekly sessions every Monday (except 4 & 25 May)

Whether your aim is to create a beautiful piece of stained glass for your own enjoyment, to delight friends and family, or as an initial step into an art-based career, this class is the perfect choice. You will be taught traditional glass cutting and leading techniques from pattern design through to project completion. As you progress with your projects other skills may be introduced such as glass painting, Tiffany foiling technique and 3-D design.

Please note, there will be additional costs incurred by students during the course to cover basic tools and materials which are dependent on the project you choose to undertake; this will be discussed with your tutor during the first lesson.

Glass Cutting Tool Set

Projects:
· a 30cm-square leaded panel

· a further project(s) of the students choosing after tutor discussion/guidance

Skill Level

This class is mixed ability, suitable for the complete beginner as well as those wishing to continue their stained-glass journey.

You can read our terms and conditions for classes here.

NB. A waiting list will be in operation once the class is FULL – please email info@creativeglassshop.co.uk if you would like to be added.

Glasswork through Fire and Ice, a study of colour, form, movement, and stillness – summer school

Welcome to our summer school. A creative exploration of colour, texture, and transformation
Discover how glass can express the powerful contrasts of fire and ice in this five day course designed for both beginners and practising artists. From warm, flowing colour to cool, crystalline stillness, you’ll explore how these elemental forces can be translated into glass through hands on experimentation and guided studio play.

Throughout the week, you’ll work with a range of glassmaking techniques, including engraving, copper foiling, kiln forming, colour exploration, and small sculptural studies. You’ll investigate texture, translucency, bubbles, cracks, surface mark making, and the many ways glass can shift between movement and stillness.

The course offers a relaxed, supportive environment where you can take creative risks, follow your instincts, and enjoy learning alongside others. Whether you’re new to glass or expanding your artistic practice, this week invites exploration, discovery, and fresh ways of thinking through materials.

NOTE: The glass will be kiln fired; you may need to come back at an agreed time to collect your finished work.
We are not using lampwork techniques on this course.

Cost: £222 (full fee), £147 (reduced fee)
Location: Granville Park Centre, 100 Granville Park, Lewisham, SE13 7DU
Time: Monday – Friday 10am-3pm