Decorative Plaster & Running Mould Masterclass

5.00 out of 5
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Learn the fundamentals of decorative plasterwork, including running a mould in-situ, fibrous plasterwork on the bench and applying the finishing coat with Master Plasterer Sean Wheatley.


SKU: 7102002 Category:


Course Details

Join us for a one-day course where you will learn the fundamentals of decorative plasterwork with Master Plasterer Sean Wheatley. Sean will guide you through running a mould in-situ, fibrous plasterwork on the bench and applying a finishing coat of plaster.

This one-day course consists of two parts, theory and practical. First, we begin the day with an introduction to internal and external ornamental plasterwork. We then move to practical demonstrations and the opportunity to get hands-on. There will be plenty of time for Q&A throughout the day, and open discussion is encouraged.

This course is ideal for anyone looking to get started with decorative plasterwork, especially plasterers keen to expand their skill set.

Course Overview

  • Introduction and presentation on internal and external ornamental plasterwork
  • Preparation and mixing of coarse stuff for a cornice backing coat
  • Run a muffle coat
  • Filling silicon moulds for decorative casts
  • Preparing and mixing the finishing coat for the cornice
  • Applying the mix and running the finish coat in situ with the running mould
  • Demonstration of fibrous plasterwork on a bench
  • Removing new casts from the silicon moulds
  • Discussion / Q&A

PPE, tools and materials are provided and all participants will receive a comprehensive literature pack.

This course welcomes students aged 16 and above who are enthusiastic about getting started with lime-based products. We encourage everyone joining us to approach the course ready to learn, ask questions and get hands-on with the materials and tools.

Location & Time

This course is held onsite at Cornish Lime, Old Callywith Road, Bodmin, Cornwall, PL31 2DZ, from 9 am to 4:30 pm. Please arrive ten minutes early to check in. Limited spaces are available, with a maximum of 10 participants per course. Multiple dates are available for booking online throughout the year.

Clothing & Footwear

Those attending should wear suitable clothing and footwear, including warmer layers for spring, autumn and winter courses.

Lunch & Refreshments

Lunch and refreshments will be served; please note any dietary requirements as needed when signing up.

Course Instructor – Sean Wheatley

Sean Wheatley has worked as a plasterer for over 40 years and became a Master Plasterer with the Worshipful Company of Plaisterers in 2022. With a passion for traditional materials and methods, Sean and his team have worked extensively on conserving and restoring historic plasterwork across the country. Sean also teaches our Lime Rendering and Plastering Course for those looking to learn more.


  1. 5 out of 5

    We attended this course after our first lime plastering course with Cornish Lime.

    The course was very well organised and we were given a friendly welcome by the staff at Cornish Lime.

    Phil Brown (the owner) is extremely knowledgeable and because he comes from a trade background he has a great knowledge of the practice of using lime.

    Sean Wheatley is a fantastic tutor and being a working plasterer he’s also very knowledgeable and practical. We now know that Sean is extremely well known in the lime plastering and ornamental plastering world and his work has won prestigious awards at the highest levels and his skill and knowledge has been recognised by the Worshipful Company of Plaisterers who have made him a Master Plaisterer.

    The course itself was very practical, which as working plasterers was exactly what we wanted.

    We had hands on training on running cornice in situ, which is Sean’s specialism and very few people are able to do and running a ceiling rose on the bench under the supervision of Dom.

    There are very few courses like this and this one is exceptionally good and we throughly recommend it to any working plasterer, specifier or anyone else interested in ornamental plaster work. This course is keeping ancient skills alive, which is virtually important or they will be lost.

    Sean and Cornish Lime have continued to support myself and my daughter since the course and opened up a world of lime plastering and ornamental plastering to us, for which we are extremely grateful! 👍

    Verified Review

    Jon Durrant (verified owner)

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Other Courses Available


Most of our courses are designed to be inclusive and beneficial for a broad audience, including contractors, building professionals, specifiers or homeowners. Keep an eye on the course details for specific recommendations for each course.

No, you do not need to bring anything specific. All PPE, tools and materials are provided. However, we recommend wearing suitable clothing and footwear, including warmer layers for spring, autumn and winter courses.

Of course! You can purchase a course online, get in touch via email at or call us if you’d like to purchase a course on behalf of someone else.

The Premier Inn Bodmin (Launceston Rd, Bodmin PL31 2RW) and the Westberry Hotel & Restaurant (Rhind St, Bodmin PL31 2EL) are both nearby and practical options. If you want to experience some local history, we recommend the Bodmin Jail Hotel, a local landmark and historical site, a project we were proud to be a part of.