From the data in Figs. 2 and 3, we determined the opti- mum volumes of PCC and SB suspensions to add dropwise to the 2% PDADMAC solution to obtain cationic suspensions. These volumes were 80 mL of the 10% wt./wt. PCC suspen- sion to 13 mL of the 2% wt./wt. PDADMAC solution and 100 mL of the 10% wt./wt. SB latex suspension to 41.9 mL of the 2% wt./wt. PDADMAC solution. These cationic SB and PCC suspensions were then used to make coating formula- tions at 3, 5, 7, and 10 pph of SB latex.