Acrylic cement works by melting the surface of the plastic and fusing it together.

Acrylic cement works by melting the surface of the plastic and fusing it together.

• A. True
• B. False
• C. Only for metals
• D. Requires heat to cure

Answer: (A)

Solvent welding of acrylic plastics is how acrylic cement bonds. The cement contains solvents that soften or dissolve a thin surface layer of the acrylic. When the two surfaces are pressed together, the softened layers merge and, as the solvent evaporates, the polymer chains interdiffuse and fuse, creating a strong joint. No external heat is required to cure; the bond forms as the solvent evaporates. This method is specific to plastics like acrylics and wouldn’t apply to metals, which use different bonding methods. So the statement is true because the cement works by softening the surface to fuse the pieces together.

Solvent welding of acrylic plastics is how acrylic cement bonds. The cement contains solvents that soften or dissolve a thin surface layer of the acrylic. When the two surfaces are pressed together, the softened layers merge and, as the solvent evaporates, the polymer chains interdiffuse and fuse, creating a strong joint. No external heat is required to cure; the bond forms as the solvent evaporates. This method is specific to plastics like acrylics and wouldn’t apply to metals, which use different bonding methods. So the statement is true because the cement works by softening the surface to fuse the pieces together.