<PAGE>

    As filed with the Securities and Exchange Commission on August 31, 2001

                                                 Registration No. 333-__________
================================================================================
--------------------------------------------------------------------------------



                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                           ________________________

                                   FORM S-8

                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                           ________________________
                                COORSTEK, INC.
            (Exact name of registrant as specified in its charter)

Delaware                                                              84-0178380
--------------------------------------------------------------------------------

(State or other jurisdiction                (I.R.S. Employer Identification No.)
of incorporation or organization)

16000 Table Mountain Parkway
Golden, Colorado                                                           80403
--------------------------------------------------------------------------------
(Address of Principal Executive Offices)                              (Zip Code)


                COORSTEK, INC. STOCK OPTION AND INCENTIVE PLAN
--------------------------------------------------------------------------------
                           (Full title of the plan)

                           ------------------------


   Joseph G. Warren, Jr.                                  Copy to:
  Chief Financial Officer                           Whitney Holmes, Esq.
       CoorsTek, Inc.                              Hogan & Hartson L.L.P.
16000 Table Mountain Parkway                 1200 Seventeenth Street, Suite 1500
   Golden, Colorado 80403                          Denver, Colorado 80202
       (303) 271-7100                                  (303) 899-7300

--------------------------------------------------------------------------------
(Name, address and telephone number, including area code, of agent for service)

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
===================================================================================================================
                                                    Amount      Proposed maximum    Proposed maximum    Amount of
             Title of securities                    to be        offering price    aggregate offering  registration
               to be registered                 Registered (1)    per share (2)          price             fee
-------------------------------------------------------------------------------------------------------------------
<S>                                             <C>             <C>                <C>                 <C>
Common stock, par value $.01 per share                694,669             $28.41       $19,735,546.29     $4,933.89
-------------------------------------------------------------------------------------------------------------------
===================================================================================================================
</TABLE>
(1)  Pursuant to Rule 416 under the Securities Act of 1933, as amended (the
     "Securities Act"), this registration statement covers, in addition to the
     number of shares of common stock shown in the table above, an indeterminate
     number of shares of common stock that may be issued as a result of anti-
     dilution provisions contained in the plan.
(2)  Estimated solely for the purpose of calculating the registration fee
     pursuant to Rules 457(c) and 457(h) under the Securities Act on the basis
     of the average high and low sales prices of the Registrant's common stock
     as quoted on the Nasdaq National Market on August 24, 2001.


    The exhibit index is located on page 5 of this registration statement.


================================================================================
--------------------------------------------------------------------------------
<PAGE>

                                EXPLANATORY NOTE

         CoorsTek, Inc., a Delaware corporation (the "Registrant"), filed with
the Securities and Exchange Commission (the "Commission") Registration Statement
No. 333-31106 on Form S-8 under the Securities Act covering the registration on
February 25, 2000 of 2,500,000 shares of common stock authorized for issuance
under the Registrant's Stock Option and Incentive Plan, as then in effect (the
"Original Plan").

         On February 14, 2001, the Registrant's Board of Directors approved an
amendment to the Original Plan (as amended, the "Plan") to increase the number
of shares of common stock available for issuance thereunder to 3,194,669 shares.
The Registrant's stockholders approved the amendment on May 8, 2001.
Accordingly, the total number of shares of common stock available for issuance
under the Plan is 3,194,669. This registration statement registers the
additional 694,669 shares of the same class of common stock authorized for
issuance under the Plan.

                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

Item 2.   Registrant Information and Employee Plan Annual Information

       If participants in the Plan call or write to Joseph G. Warren, Jr., Chief
Financial Officer, CoorsTek, Inc., 16000 Table Mountain Parkway, Golden,
Colorado 80403, (303) 271-7100, we will provide them with copies of the
documents incorporated by reference in Item 3 of Part II of this registration
statement and other documents required to be delivered to participants in the
Plan pursuant to Rule 428(b) under the Securities Act, without charge.  The
documents incorporated by reference in Item 3 of Part II of this registration
statement are incorporated by reference in the Section 10(a) prospectus.

                                    PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.   Incorporation of Documents by Reference

       Pursuant to Instruction E of Form S-8, the contents of Registration
Statement No. 333-31106 are incorporated herein by reference.

       Additionally, the following documents and all other documents
subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
prior to the filing of a post-effective amendment that indicates that all the
shares of common stock offered hereby have been sold or that deregisters all
such shares of common stock then remaining unsold, are hereby incorporated
herein by reference to be a part of this registration statement from the date of
filing of such documents:

                                       2
<PAGE>

       (a)  The Registrant's latest annual report filed pursuant to Section
13(a) or 15(d) of the Exchange Act;

       (b)  All other reports filed pursuant to Section 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the annual report
referred to in (a) above; and

       (c)  The description of the Registrant's common stock contained in the
Registrant's Amended Registration Statement on Form 10A/3, Registration
Statement No. 000-27579, filed under the Exchange Act on December 17, 1999.

       Any statement contained in a document incorporated or deemed to be
incorporated by reference shall be deemed to be modified or superseded to the
extent that a statement contained in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such prior statement. Any such statement so modified or superseded
shall not be deemed to constitute a part of this registration statement, except
as so modified or superseded.

       To the extent that any proxy statement is incorporated by reference
herein, such incorporation shall not include any information contained in such
proxy statement which is not, pursuant to the Commission's rules, deemed to be
"filed" with the Commission or subject to the liabilities of Section 18 of the
Exchange Act.


Item 8.    Exhibits


Exhibit
No.            Exhibit
-------        -------

4              Form of Rights Agreement (incorporated by reference to Exhibit
               4.1 to the registrant's registration statement on Form 10/A2
               filed with the Commission on December 14, 1999)

5              Opinion of Hogan & Hartson L.L.P.

23.1           Consent of Independent Accountants

23.2           Consent of Hogan & Hartson L.L.P. (contained in its legality
               opinion filed as Exhibit 5)

24             Power of Attorney

                                       3
<PAGE>

                                   SIGNATURES

          The Registrant. Pursuant to the requirements of the Securities Act,
the registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Golden, State of Colorado, on this 14th day of
August, 2001.

                              COORSTEK, INC.


                              By:  /s/ John K. Coors
                                  ------------------
                                  John K. Coors, Chairman, Chief Executive
                                  Officer and President

          Pursuant to the requirements of the Securities Act, this registration
statement has been signed by the following persons on August 14, 2001 in the
capacities indicated.

Signature                Title
---------                -----

/s/ John K. Coors           Chairman of the Board of Directors, Chief Executive
-------------------------   Officer and President
John K. Coors

/s/ Joseph G. Warren, Jr.   Chief Financial Officer
-------------------------   (Principal Financial and Accounting Officer)
Joseph G. Warren, Jr.

/s/ John E. Glancy          Director
-------------------------
John E. Glancy

/s/ W. J. Kitchen           Director
-------------------------
W. J. Kitchen

/s/ John Markle, III        Director
-------------------------
John Markle, III

/s/ Donald E. Miller        Director
-------------------------
Donald E. Miller

/s/ Kimberly S. Patmore     Director
-------------------------
Kimberly S. Patmore

/s/ Robert L. Smialek       Director
-------------------------
Robert L. Smialek

                                       4
<PAGE>

                                 EXHIBIT INDEX


Exhibit
No.         Exhibit                                                         Page
-------     -------                                                         ----

4           Form of Rights Agreement (incorporated by reference to
            Exhibit 4.1 to the registrant's registration statement
            on Form 10/A2 filed with the Commission on December 14, 1999)

5           Opinion of Hogan & Hartson L.L.P.

23.1        Consent of Independent Accountants

23.2        Consent of Hogan & Hartson L.L.P. (contained in its legality
            opinion filed as Exhibit 5)

24          Power of Attorney

                                       5
[{"type": "S-8", "sequence": "1", "filename": "ds8.txt", "description": "STOCK OPTION AND INCENTIVE PLAN", "secsgml_size_bytes": 11472}]
{"company-data": {"conformed-name": "COORSTEK INC", "cik": "0001095603", "assigned-sic": "3679", "irs-number": "840178380", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-68782", "film-number": "1729141"}, "business-address": {"street1": "16000 TABLE MOUNTAIN PARKWAY", "city": "GOLDEN", "state": "CO", "zip": "80403", "phone": "3032717000"}, "mail-address": {"street1": "16000 TABLE MOUNTAIN PARKWAY", "city": "GOLDEN", "state": "CO", "zip": "80403"}, "former-company": {"former-conformed-name": "COORS PORCELAIN CO", "date-changed": "19990923"}}
As filed with the Securities and Exchange Commission on August 31, 2001

                                                 Registration No. 333-__________
================================================================================
--------------------------------------------------------------------------------

                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                           ________________________

                                   FORM S-8

                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                           ________________________
                                COORSTEK, INC.
            (Exact name of registrant as specified in its charter)

Delaware                                                              84-0178380
--------------------------------------------------------------------------------

(State or other jurisdiction                (I.R.S. Employer Identification No.)
of incorporation or organization)

16000 Table Mountain Parkway
Golden, Colorado                                                           80403
--------------------------------------------------------------------------------
(Address of Principal Executive Offices)                              (Zip Code)

                COORSTEK, INC. STOCK OPTION AND INCENTIVE PLAN
--------------------------------------------------------------------------------
                           (Full title of the plan)

                           ------------------------

   Joseph G. Warren, Jr.                                  Copy to:
  Chief Financial Officer                           Whitney Holmes, Esq.
       CoorsTek, Inc.                              Hogan & Hartson L.L.P.
16000 Table Mountain Parkway                 1200 Seventeenth Street, Suite 1500
   Golden, Colorado 80403                          Denver, Colorado 80202
       (303) 271-7100                                  (303) 899-7300

--------------------------------------------------------------------------------
(Name, address and telephone number, including area code, of agent for service)

                        CALCULATION OF REGISTRATION FEE
===================================================================================================================
                                                    Amount      Proposed maximum    Proposed maximum    Amount of
             Title of securities                    to be        offering price    aggregate offering  registration
               to be registered                 Registered (1)    per share (2)          price             fee
-------------------------------------------------------------------------------------------------------------------
Common stock, par value $.01 per share                694,669             $28.41       $19,735,546.29     $4,933.89
-------------------------------------------------------------------------------------------------------------------
===================================================================================================================
(1)  Pursuant to Rule 416 under the Securities Act of 1933, as amended (the
     "Securities Act"), this registration statement covers, in addition to the
     number of shares of common stock shown in the table above, an indeterminate
     number of shares of common stock that may be issued as a result of anti-
     dilution provisions contained in the plan.
(2)  Estimated solely for the purpose of calculating the registration fee
     pursuant to Rules 457(c) and 457(h) under the Securities Act on the basis
     of the average high and low sales prices of the Registrant's common stock
     as quoted on the Nasdaq National Market on August 24, 2001.

    The exhibit index is located on page 5 of this registration statement.

================================================================================
--------------------------------------------------------------------------------
EXPLANATORY NOTE

         CoorsTek, Inc., a Delaware corporation (the "Registrant"), filed with
the Securities and Exchange Commission (the "Commission") Registration Statement
No. 333-31106 on Form S-8 under the Securities Act covering the registration on
February 25, 2000 of 2,500,000 shares of common stock authorized for issuance
under the Registrant's Stock Option and Incentive Plan, as then in effect (the
"Original Plan").

         On February 14, 2001, the Registrant's Board of Directors approved an
amendment to the Original Plan (as amended, the "Plan") to increase the number
of shares of common stock available for issuance thereunder to 3,194,669 shares.
The Registrant's stockholders approved the amendment on May 8, 2001.
Accordingly, the total number of shares of common stock available for issuance
under the Plan is 3,194,669. This registration statement registers the
additional 694,669 shares of the same class of common stock authorized for
issuance under the Plan.

                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

Item 2.   Registrant Information and Employee Plan Annual Information

       If participants in the Plan call or write to Joseph G. Warren, Jr., Chief
Financial Officer, CoorsTek, Inc., 16000 Table Mountain Parkway, Golden,
Colorado 80403, (303) 271-7100, we will provide them with copies of the
documents incorporated by reference in Item 3 of Part II of this registration
statement and other documents required to be delivered to participants in the
Plan pursuant to Rule 428(b) under the Securities Act, without charge.  The
documents incorporated by reference in Item 3 of Part II of this registration
statement are incorporated by reference in the Section 10(a) prospectus.

                                    PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.   Incorporation of Documents by Reference

       Pursuant to Instruction E of Form S-8, the contents of Registration
Statement No. 333-31106 are incorporated herein by reference.

       Additionally, the following documents and all other documents
subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
prior to the filing of a post-effective amendment that indicates that all the
shares of common stock offered hereby have been sold or that deregisters all
such shares of common stock then remaining unsold, are hereby incorporated
herein by reference to be a part of this registration statement from the date of
filing of such documents:

                                       2
(a)  The Registrant's latest annual report filed pursuant to Section
13(a) or 15(d) of the Exchange Act;

       (b)  All other reports filed pursuant to Section 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the annual report
referred to in (a) above; and

       (c)  The description of the Registrant's common stock contained in the
Registrant's Amended Registration Statement on Form 10A/3, Registration
Statement No. 000-27579, filed under the Exchange Act on December 17, 1999.

       Any statement contained in a document incorporated or deemed to be
incorporated by reference shall be deemed to be modified or superseded to the
extent that a statement contained in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such prior statement. Any such statement so modified or superseded
shall not be deemed to constitute a part of this registration statement, except
as so modified or superseded.

       To the extent that any proxy statement is incorporated by reference
herein, such incorporation shall not include any information contained in such
proxy statement which is not, pursuant to the Commission's rules, deemed to be
"filed" with the Commission or subject to the liabilities of Section 18 of the
Exchange Act.

Item 8.    Exhibits

Exhibit
No.            Exhibit
-------        -------

4              Form of Rights Agreement (incorporated by reference to Exhibit
               4.1 to the registrant's registration statement on Form 10/A2
               filed with the Commission on December 14, 1999)

5              Opinion of Hogan & Hartson L.L.P.

23.1           Consent of Independent Accountants

23.2           Consent of Hogan & Hartson L.L.P. (contained in its legality
               opinion filed as Exhibit 5)

24             Power of Attorney

                                       3
SIGNATURES

          The Registrant. Pursuant to the requirements of the Securities Act,
the registrant certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-8 and has duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Golden, State of Colorado, on this 14th day of
August, 2001.

                              COORSTEK, INC.

                              By:  /s/ John K. Coors
                                  ------------------
                                  John K. Coors, Chairman, Chief Executive
                                  Officer and President

          Pursuant to the requirements of the Securities Act, this registration
statement has been signed by the following persons on August 14, 2001 in the
capacities indicated.

Signature                Title
---------                -----

/s/ John K. Coors           Chairman of the Board of Directors, Chief Executive
-------------------------   Officer and President
John K. Coors

/s/ Joseph G. Warren, Jr.   Chief Financial Officer
-------------------------   (Principal Financial and Accounting Officer)
Joseph G. Warren, Jr.

/s/ John E. Glancy          Director
-------------------------
John E. Glancy

/s/ W. J. Kitchen           Director
-------------------------
W. J. Kitchen

/s/ John Markle, III        Director
-------------------------
John Markle, III

/s/ Donald E. Miller        Director
-------------------------
Donald E. Miller

/s/ Kimberly S. Patmore     Director
-------------------------
Kimberly S. Patmore

/s/ Robert L. Smialek       Director
-------------------------
Robert L. Smialek

                                       4
EXHIBIT INDEX

Exhibit
No.         Exhibit                                                         Page
-------     -------                                                         ----

4           Form of Rights Agreement (incorporated by reference to
            Exhibit 4.1 to the registrant's registration statement
            on Form 10/A2 filed with the Commission on December 14, 1999)

5           Opinion of Hogan & Hartson L.L.P.

23.1        Consent of Independent Accountants

23.2        Consent of Hogan & Hartson L.L.P. (contained in its legality
            opinion filed as Exhibit 5)

24          Power of Attorney

                                       5