Composition Batch # Manufacturer
Etch-and-rinse
(Adper™ Scotchbond)
Bis-GMA 10-20% 
HEMA 5-15%
Polyalkenoic acid copolymer 5-10%
Water
Ethanol
Silica particles
initiators
51010 3M ESPE, Seefeld, Germany
Self-Etch
(Adper™ Easy Bond)
Bis-GMA  15-25%
HEMA      15-25%
functionalisedpolyalkenoic acid
Water       10-15%
Ethanol    10-15%
Silica particles
initiators
methacrylated phosphoric esters,
1,6 hexanedioldimethacrylate, methacrylate 5-10%
437866 3M ESPE, Seefeld, Germany
Other names for Adper™ Scotchbond:  Adper™ Single Bond Plus (USA)
Adper™ Single Bond 2 (Latin America, Asia, Australia)
Table 3: Composition of the two types of adhesives used.