Exhibit 23.20

                       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 22, 2001 relating to the
financial statements of Hercules Investments SARL, which appears in such
Registration Statement. We also consent to the reference to us under the heading
"Experts" in such Registration Statement.


/s/ PricewaterhouseCoopers N.V.



PricewaterhouseCoopers N.V.
Amsterdam, The Netherlands
October 29, 2001