EX-23.7 20 w51743aaex23-7.txt CONSENT OF PWC LLP W/RESPECT TO BL TECHNOLOGIES Exhibit 23.7 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the use in this Registration Statement on Form S-4 of Hercules Incorporated of our report dated October 16, 2001 relating to the financial statements of BL Technologies, Inc. which appears in such Registration Statement. We also consent to the reference to us under the heading "Experts" in such Registration Statement. /s/ PricewaterhouseCoopers LLP Philadelphia, Pennsylvania October 26, 2001