UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                Pursuant to Section 13 OR 15(d) of the Securities
                              Exchange Act of 1934

              Date of Report (Date of the earliest event reported)
                                  June 14, 2005
                               ------------------

                               NL Industries, Inc.
             ------------------------------------------------------
             (Exact name of Registrant as specified in its charter)

      New Jersey                      1-640                    13-5267260
  -------------------           ------------------          -----------------
    (State or other                (Commission               (IRS Employer
    jurisdiction of                File Number)              Identification
    incorporation)                                                 No.)

    5430 LBJ Freeway, Suite 1700, Dallas, Texas                  75240-2697
   ----------------------------------------------               ------------
     (Address of principal executive offices)                    (Zip Code)

               Registrant's telephone number, including area code
                                 (972) 233-1700
                                 --------------


             (Former name or address, if changed since last report.)

Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2):

[   ]  Written communications pursuant to Rule 425 under the Securities Act
       (17 CFR 230.425)

[   ]  Soliciting material pursuant  to  Rule 14a-12 under the Exchange Act
       (17 CFR 240.14a-12)

[   ]  Pre-commencement communications pursuant to Rule 14d-2(b)  under the
       Exchange Act (17 CFR 240.14d-2(b))

[   ]  Pre-commencement communications pursuant to  Rule 13e-4(c) under the
       Exchange Act (17 CFR 240.13e-4(c))

<PAGE>

Item 1.01     Entry into a Material Definitive Agreement.

     The  information  disclosed  by  Kronos  International,  Inc.,  a  Delaware
corporation and an affiliate of the registrant ("Kronos  International"),  under
Item 1.01 of the Current Report on Form 8-K that Kronos  International (File No.
333-100047) filed with the U.S.  Securities and Exchange  Commission on June 20,
2005 is hereby incorporated herein by reference.

Item 9.01     Financial Statements and Exhibits.

     (c) Exhibits.

          Item No.     Exhibit Index
         ----------    ---------------------------------------------------------
          10.1         Second   Amendment   Agreement   Relating   to  a  Credit
                       Facility  Agreement  dated June 25,  2002  executed as of
                       June 14, 2005 by and among  Deutsche Bank AG, as mandated
                       lead arranger,  Deutsche Bank Luxembourg  S.A., as agent,
                       the  participating  lenders,  Kronos  Titan GmbH,  Kronos
                       Europe  S.A./N.V,  Kronos  Titan  AS,  Kronos  Norge  AS,
                       Titania  AS  and  Kronos  Denmark  ApS  (incorporated  by
                       reference to Exhibit  10.1 to the Current  Report on Form
                       8-K filed by Kronos  International  (File No. 333-100047)
                       with the U.S.  Securities and Exchange Commission on June
                       20, 2005).

<PAGE>

                                    SIGNATURE


     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                         NL Industries, Inc.
                                         (Registrant)




                                         By:    /s/ Gregory M. Swalwell
                                                ----------------------------
                                                Gregory M. Swalwell
                                                Vice President, Finance and
                                                Chief Financial Officer



Date:  June 20, 2005