In Conversation with Barbara Diethelm, Owner of Lascaux Colours & Restauro

Last updated: April 13, 2026
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We invited Barbara Diethelm, owner of Lascaux Colours & Restauro, to the Jackson’s studio to talk about the company’s history and philosophy, the exceptional standards of their water-based paints, and their strong relationship with professional art restorers.


0:00 Introduction

0:25 When and how did Lascaux begin?

1:07 The name Lascaux evokes the prehistoric cave paintings found in southwestern France. Why is it important?

1:53 Lascaux has been associated with some important artists of the mid-twentieth century. How did they inform the birth of the company?

4:33 Why does Lascaux focus on water-based systems? Why not make oil paints as well?

5:20 Lascaux is committed to a holistic company philosophy. To what extent do these principles flow into your daily work?

6:14 Each Lascaux colour can contain up to 20 different ingredients. Why is this?

6:48 Many of your paints are weather-resistant, could you tell us more about this level of quality in your paint production?

7:58 What different needs do restorers and fine artists have, and how do you cater for them both?

9:48 How does Lascaux ensure the environmental sustainability of their artist materials?

10:38 You are an artist yourself. How does this inform your philosophy of colour making?

12:24 You set up the Lascaux Foundation in 2004. Could you tell us more about the vision the foundation has?

13:18 What does the future hold for Lascaux?

13:35 Credits


Further Reading

Preparatory Drawing Methods for Painting

Recreating the Colour Palette of Winifred Nicholson

Exploring the Impact of the Victorian Colour Revolution

Art Terms Explained: Oil Painting

Shop Lascaux on jacksonsart.com

Clare McNamara is the former Editor of Jackson’s Art Blog. During her time in the role, she regularly contributed interviews, reviews, and in-depth features. Clare has a background in fine arts, and her multidisciplinary practice includes illustration, graphic design, video, and music. Her combined experience as both a practitioner and editor informed her editorial approach, helping to shape content that supports and engages Jackson’s community of artists.

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1 thought on “In Conversation with Barbara Diethelm, Owner of Lascaux Colours & Restauro”

  1. A very interesting conversation…to learn
    about the technical/evironmental aspects of
    paints, together with the spiritual/emotional
    impact of colour as it is used in art and life…
    Thank you Barbara Diethelm.

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