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Posted by Rob Howard on March 10, 19100 at 15:53:53:

In Reply to: Anybody know what courtrai is? posted by R Davis on March 10, 19100 at 13:02:07:

: Deos anybody know what exactly courtrai is. It's apparently some form of siccative that Bouguereau used.

: Richard

Yes. Siccatif de Coutrai is made with lead and manganese salts heated into oil and thinned with turpentine. Doubtless Bougereau used the older manganese salts (limonite) rather than the newer manganese resinates (which are somewhat less prone to cracking).

With the exception of the lead, Siccatif de Coutrai is available at all household paint stores under the name of Japan Dryer. I wouldn't touch it with a barge pole.

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