Table 4. Growth Resistance of Pigmented Resins 







Growth Resistance Ratings for 



_ 



Resin Tested 



Acid No. 























A. pullulans 



A. oryzae 



A . nigev 



Totals 



1 original 



54.7 



1; 3; 3 



3; 4; 3 



3; 2; 2 



24 



1 organotin 



- 



5; 5; 5 



5; 5; 5 



5; 5; 5 



45 



2 original 



25.7 



1; 1; 3 



2; 1; 2 



1; 2; 3 



16 



2 organotin 



- 



5; 3; 3 



5; 5; 4 



3; 5; 4 



37 



3 original 



6.6 



1; 1; 



2; 1; 1 



2; 2; 3 



13 



3 organotin 



- 



3; 2; 2 



4; 2; 3 



4; 3; 3 



26 



4 original 



5.7 



0; 0; 1 



2; 2; 2 



2; 2; 1 



12 



4 organotin 



- 



3; 1; 1 



4; 3; 4 



2; 3; 3 



24 



5 original 



4.8 



0; 0; 1 



0; 1; 1 



0; 1; 2 



6 



5 organotin 



- 



2; 1; 2 



2; 3; 3 



2; 3; 3 



21 



Totals 





59 



84 



81 



224 



Table 5. Formulation of Pigmented Resins 



Component 



Percent by Weight 



Resin 

 Rutile 



Powdered silica 

 Solvent 



28 

 28 

 18 

 26 



