PURPOSE: The title adhesive composition having improved adhesion and water resistance, capable of bonding and laminating under a low pressure, free from surface unevenness, comprising an aqueous emulsion of vinylurethane resin and glass microballoons as a filler.

CONSTITUTION: A composition for low-pressure bonding comprising (A) an aqueous emulsion of a vinylurethane resin, e.g. formed by reacting 100pts.wt. of a resin component comprising polyvinyl alcohol resin and polyvinyl acetate resin with 10W15pts.wt. of an isocyanate-type curing agent, (B) glass microballoons having the same specific gravity as (A), at a weight ratio of (A) to (B) of 100:1W5.

EFFECT: High-quality decorative plywood or coated materials can be obtained by means of an inexpensive low-pressure type press. Low-grade materials are usable as the substrate.

USE: Exterior decoration of pianos and furniture.