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Dental General 9cecbce6

Setting reaction of solution liners:

A
Chemical reaction
B
Physical evaporation
C
Both of the above
D
None
High-Yield Explanation
Solution Liners Based on non aqueous solution of acetone, alcohol or ether. Eg: Varnish (COPAL WASH). Composition: 10% copal resin. 90% solvent. Setting reaction: Physical evaporation. Thin film; copal resin remains. Single layer of varnish covers 55% of surface area. If 2-3 layers are applied; 6-80% area is covered.

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