Hot joya were accompanying developing

[WilliamNance]

I acquisition that controlled appliance through a awning is difficult. But this new arrangement is an advance over PUR Adhesive antecedent assay lining and it does acquiesce one to bandage a painting afterwards calefaction and appliance little burden on the face of the painting.

Mehra aswell afflicted to the use of Plexisol P-550, a poly (n-butyl methacrylate), as an all-embracing consolidant, instead of his antecedent use of Bedacryl X-122 which is aswell a poly (n-butyl methacrylate). In both cases the consolidant was used on both the foreground and aback of the painting.

Up to this point all of Mehra's linings were done with some bulk of damp in the adhesive. In a 1981 commodity in "The Conservator," he briefly describes a dry-film arrangement in which the Plextol B-500 is thickened with 15% toluene, activated to the lining abutment and accustomed to dry thoroughly.

Just afore the painting is to be lined, the dry blur is sprayed with either isopropyl booze or toluene to actualize a tacky, acquaintance adhesive. The painting is afresh placed over the abutment and larboard to attach beneath low pressure. This abode can be used for those paintings that adeptness acknowledge to moisture. This blazon of bond, although calmly reversible, is about absolute anemic and its annual is accordingly limited.

It appears that while Mehra was developing a algid lining method, two Danish workers, hot joya were accompanying developing a low temperature calefaction sealing arrangement appliance accession acrylic emulsion. This was a softer polymer alleged Plextol B-360, an n-butyl methacrylate/methacrylate copolymer. Both men appear in 1976.
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