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 earliest event reported): February 3, 2011

Momentive Performance Materials Inc.

(Exact Name of Registrant as Specified in Its Charter)

(518) 533-4600

(Registrant’s Telephone Number, Including Area Code)

N/A

(Former Name or Former 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:

Section 1—Registrant’s Business and Operations

Amendment Agreement

On February 3, 2011, Momentive Performance Materials Inc. (the “Registrant”) entered into an amendment agreement (the “Amendment Agreement”) to provide for the amendment of its credit agreement dated as of December 4, 2006 (the “Credit Agreement”) to, among other things: (i) extend the maturity of term loans held by consenting lenders to May 5, 2015 and increase the applicable margin with respect to such extended term loans to 3.50% per annum for eurocurrency loans, (ii) allow future mandatory and voluntary prepayments to be directed to non-extended term loans prior to the extended maturity term loans, (iii) subject to the requirement to make such offers on a pro rata basis to all term loan lenders and/or to all lenders holding revolving commitments, as applicable, allow the Registrant to extend the maturity of term loans and/or revolving commitments, as applicable, and for the Registrant to otherwise modify the terms of loans or revolving commitments in connection with such an extension and (iv) amend certain other terms therein. The Credit Agreement was filed as Exhibit 10.1 to the Registrant’s S-4 Registration Statement, filed on September 14, 2007.

Pursuant to the Amendment Agreement, lenders under the Registrant’s credit agreement have agreed to extend the maturity of (i) approximately $436 million aggregate principal amount of their dollar term loans (approximately 87% of the total dollar term loans) and (ii) approximately €294 million aggregate principal amount of their euro term loans (approximately 77% of the total euro term loans), for an overall extension of approximately $839.5 million aggregate US dollar equivalent principal amount of term loans (approximately 81.5% of the total term loans). The effectiveness of the Amendment Agreement and the extension of the term loans thereunder is subject to the reaffirmation of the security under the credit agreement and other customary closing conditions.

Section 2—Financial Information

The information set forth under Item 1.01 above is incorporated by reference into this Item 2.03.

SIGNATURES

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