Exhibit 24.1

Power of Attorney

Each person whose signature
appears below hereby constitutes and appoints Edward F. Lonergan and Norman Clubb, and each of them, as his or her true and lawful attorneys-in-fact and agents, with full power of and substitution and resubstitution, for him or her and in his or her
name, place and stead, in any and all capacities, to sign Diversey, Inc.s Annual Report on Form 10-K for the fiscal year ended December 31, 2009, and any and all amendments thereto, and to file the same, with all exhibits and schedules
thereto, and other documents therewith, with the Securities and Exchange Commission, and hereby grants unto such attorneys-in-fact and agents full power and authority to do and perform each and every act and thing necessary or desirable to be done,
as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or his or her substitutes, may lawfully do or cause to be done by virtue hereof.

This Power of Attorney may be executed in multiple counterparts, each of which shall be deemed an original and all of which, when taken
together, shall constitute one and the same document.

IN WITNESS WHEREOF, the undersigned have hereunto
set their hands as of the 12thday of March, 2010.



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|/s/ Edward F. Lonergan                                             |  |  |  | /s/ Norman Clubb                                                 
|Edward F. Lonergan Chief
Executive Officer, President and Director |  |  |  | Norman Clubb Executive Vice
President and Chief Financial Officer
|                                                                   |  | 
|/s/ P. Todd Herndon                                                |  |  |  | /s/ S. Curtis Johnson III                                        
|P. Todd Herndon Vice President
and Corporate Controller            |  |  |  | S. Curtis Johnson III Director and Chairman                      
|                                                                   |  | 
|/s/ Todd C. Brown                                                  |  |  |  | /s/ James G. Berges                                              
|Todd C. Brown Director                                             |  |  |  | James G. Berges Director                                         
|                                                                   |  | 
|/s/ Robert M. Howe                                                 |  |  |  | /s/ Helen Johnson-Leipold                                        
|Robert M. Howe Director                                            |  |  |  | Helen Johnson-Leipold Director                                   
|                                                                   |  | 
|/s/ Clifton D. Louis                                               |  |  |  | /s/ George K. Jaquette                                           
|Clifton D. Louis Director                                          |  |  |  | George K. Jaquette Director                                      
|                                                                   |  | 
|/s/ Rick Schnall                                                   |  |  |  | /s/ Philip W. Knisely                                            
|Rick Schnall Director                                              |  |  |  | Philip W. Knisely Director                                       
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|/s/ Richard C. Levin                                               |  |  |  |                                                                  
|George K. Jaquette Director                                        |  |  |  |