# Megilp

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**Megilp** (/məˈɡɪlp/), also known as **Macgilp** or **McGuilpis**, is an [oil painting](/source/Oil_painting) medium consisting of a mixture of [mastic](/source/Mastic_(plant_resin)) [varnish](/source/Varnish) and an oil medium: such as walnut, linseed, safflower, poppy, or black oil (linseed oil) cooked with [litharge](/source/Litharge) or [white lead](/source/White_lead). Earlier recipes may omit the mastic and substitute wax.[1]

It makes oil paint thin, glossy and easy to work, with an extremely short[clarification needed] drying time; and depending on the formulation, the modern, premixed glazes may help produce the sensation of depth, and help the painter by producing transparency that will hold in place rather than running or sagging, while at the same time sidestepping many of the traditional problems associated with Megilp, seeing how the archival quality of the older recipes is much disputed. Some[2] claim the traditional, hand mixed medium causes paint to become yellow and brittle, while others claim that improperly prepared paint is the cause and that the longevity of Megilp (especially in its premixed glazing form) is excellent.

[Victoria Finlay](/source/Victoria_Finlay) cites [Joshua Reynolds](/source/Joshua_Reynolds) as an example of a painter whose reliance on Megilp has detracted from the longevity of his paintings. Specifically, she indicates his painting *Girl With a Baby* as one which has changed a great deal over time. Megilp was also used by [Turner](/source/Joseph_M._W._Turner)[3] and [Sargent](/source/John_Singer_Sargent), though if used very minimally, or used to the correct ratio, so that the mediums ingredients protect the painting it should be fine. David Price is known to use materials similar to Megilp.[4]

## References

1. The decorative painters' and glaziers' guide, By Nathaniel Whittock 1828 p 27

1. Mayer An artist handbook of materials and techniques, Fifth edition Page 225 1990

1. Victoria Finlay, Color 2000

1. ["Carnation, Lily, Lily, Rose - Rebecca Hellen and Elaine Kilmurray"](https://www.britishartstudies.ac.uk/index/article-index/sargent-conservation/issue/issue-2#). *britishartstudies.ac.uk*

Wall, William (1905). *Graining Ancient And Modern*. New York: Sheridan House. pp. 18–19. ISBN 0-911378-79-0.

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