Question

oleoresinous varnish dry by​

Answer 1

Epoxy resins derived from epichlorohydrin and Bisphenol-A have been converted into air-drying varnishes by cooking with vegetable oils. Compared to varnishes derived from ordinary varnish resins, the epoxy resin-oil varnishes have faster bodying rate, higher viscosity, lighter color, and lower acid number.

Answer 2

Oleoresinous varnish dry by Epoxy resins.

• Epoxy resins originating from epichlorohydrin and Bisphenol-A has been converted into air-drying varnishes by cooking them with vegetable oils.
• Distinguished from varnishes emanating from ordinary varnish resins, the epoxy resin-oil varnishes have a rapid bodying rate, higher consistency, lighter colour, and lower acid number.
• Although the epoxy resin-oil varnishes dry slowly and yield low films such as several other soft oil varnishes, they have extremely good exterior stability in apparent films upon wood, and in pigmented films possess good chalk opposition.
• The varnishes are relatively different from epoxy esters originating from epoxy resins and fatty acids. These latter products dry quickly and result in tough, flexible films retaining good friction and chemical resistance.

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