for water-borne systems are following products available:

Mineral oil defoamers, silicone free
BYK®-031, BYK®-032, BYK®-033

Mineral oil defoamers, containing silicone
BYK®-034, BYK®-035, BYK®-037, BYK®-038

Mineral oil free and silicone oil free defoamers
BYK®-011, BYK®-012, BYK®-016, BYK®-022, BYK®-023, BYK®-024, BYK®-025, BYK®-028, BYK®-093, BYK®-1610, BYK®-1615, BYK®-1660

for solvent-borne and solvent-free systems are following products available:

Silicone Defoamers
BYK®-065, BYK®-066 N, BYK®-067 A, BYK®-085

Polymer-silicone combination defoamers
BYK®-070, BYK®-A 530, BYK®-088, BYK®-A 525

Silicone free polymer defoamers & air release additives
BYK®-A 515, BYK®-A 550, BYK®-A 555, BYK®-A 535