<SUBMISSION>
<ACCESSION-NUMBER>0001157523-11-003102
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20110512
<ITEMS>2.02
<ITEMS>9.01
<FILING-DATE>20110513
<DATE-OF-FILING-DATE-CHANGE>20110512
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>AMERON INTERNATIONAL CORP
<CIK>0000790730
<ASSIGNED-SIC>3270
<IRS-NUMBER>770100596
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1130
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-09102
<FILM-NUMBER>11837508
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>245 S LOS ROBLES AVE
<CITY>PASADENA
<STATE>CA
<ZIP>91101
<PHONE>6266834000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>245 S LOS ROBLES AVE
<CITY>PASADENA
<STATE>CA
<ZIP>91101
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>AMERON INC/DE
<DATE-CHANGED>19920703
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a6722603.htm
<DESCRIPTION>AMERON INTERNATIONAL CORPORATION 8-K
<TEXT>
<html>
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    <p style="text-align: center">
      <font style="font-size: 17pt"><b>UNITED STATES</b></font><br><font style="font-size: 17pt"><b>SECURITIES
      AND EXCHANGE COMMISSION</b></font><br><br><font style="font-size: 12pt"><b>Washington,
      D.C.&#160;&#160;20549</b></font>
    </p>
    <hr style="text-align: center; height: 1.0 pt; color: #000000; width: 15%">


    <p style="text-align: center">
      <br>
      <font style="font-size: 16pt"><b>FORM 8-K</b></font><br><br><br><font style="font-size: 14pt"><b>CURRENT
      REPORT</b></font><br><font style="font-size: 14pt"><b>PURSUANT TO
      SECTION 13 OR 15(d) OF THE</b></font><br><font style="font-size: 14pt"><b>SECURITIES
      EXCHANGE ACT OF 1934</b></font><br><br>
    </p>
    <p style="text-align: left">
      <font style="font-size: 12pt">Date of Report</font><font style="font-size: 14pt">
      </font>(Date of earliest event reported)<b> <font style="font-family: Times New Roman; font-size: 12pt">May
      12, 2011</font></b><font style="font-family: Times New Roman; font-size: 10pt"><br style="font-size: 10pt; font-family: Times New Roman"></font><br><br>
    </p>
    <p style="text-align: center">
      <font style="font-size: 17pt"><b>AMERON INTERNATIONAL CORPORATION</b></font><br>(Exact
      name of Registrant as specified in its charter)<br><br>
    </p>
<div style="text-align:left">
    <table style="font-size: 10pt; margin-bottom: 10.0px; font-family: Times New Roman; width: 100%" cellspacing="0">
      <tr>
        <td style="padding-left: 0.0px; width: 33%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            <b>Delaware</b>
          </p>
        </td>
        <td style="padding-left: 0.0px; padding-right: 0.0px; white-space: nowrap; width: 34%; text-align: center" valign="top">
          <b>1-9102</b>
        </td>
        <td style="padding-left: 0.0px; padding-right: 0.0px; white-space: nowrap; width: 33%; text-align: right" valign="top">
          <b>77-0100596</b>
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 33%; text-align: left" valign="top">
          (State or Other Jurisdiction
        </td>
        <td style="padding-left: 0.0px; width: 34%; text-align: center" valign="top">
          (Commission
        </td>
        <td style="padding-left: 0.0px; width: 33%; text-align: right" valign="top">
          (I.R.S. Employer
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 33%; text-align: left" valign="top">
          of Incorporation)
        </td>
        <td style="padding-left: 0.0px; width: 34%; text-align: center" valign="top">
          File Number)
        </td>
        <td style="padding-left: 0.0px; width: 33%; text-align: right" valign="top">
          Identification No.)
        </td>
      </tr>
    </table>
    </div>
    <p>
      <br>

    </p>
<div style="text-align:left">
    <table style="font-size: 10pt; margin-bottom: 10.0px; font-family: Times New Roman; width: 100%" cellspacing="0">
      <tr>
        <td style="padding-left: 0.0px; width: 50%; text-align: left" valign="top">
          <b>245 South Los Robles Avenue</b>
        </td>
        <td style="padding-left: 0.0px; padding-right: 0.0px; white-space: nowrap; width: 50%; text-align: right" valign="top">
          <b>91101</b>
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 50%; text-align: left" valign="top">
          <b>Pasadena, California</b>
        </td>
        <td style="padding-left: 0.0px; width: 50%; text-align: right" valign="top">
          (Zip Code)
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 50%; text-align: left" valign="top">
          (Address of Principal Executive Offices)
        </td>
        <td style="width: 50%">

        </td>
      </tr>
    </table>
    </div>
    <p style="white-space: nowrap">
      <br>
      Registrant&#8217;s telephone number, including area code&#160;&#160;<b>(626)
      683-4000</b>
    </p>
    <p>
      <br>

    </p>
    <p style="text-align: center">
      <b>Not Applicable</b><br>(Former Name or Former Address, if Changed
      Since Last Report)<br><br><br>
    </p>
    <p>
      &#160;&#160;&#160;&#160;&#160;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 (<i>see</i> General Instruction A.2.
      below):
    </p>
    <p>
      <font style="font-family: Arial Unicode MS; font-size: 10pt">&#8414;</font>
      <font style="font-family: Times New Roman; font-size: 10pt">Written
      communications pursuant to Rule 425 under the Securities Act (17 CFR
      230.425)</font>
    </p>
    <p>
      <font style="font-family: Arial Unicode MS; font-size: 10pt">&#8414;</font>
      <font style="font-family: Times New Roman; font-size: 10pt">Soliciting
      material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)</font>
    </p>
    <p>
      <font style="font-family: Arial Unicode MS; font-size: 10pt">&#8414;</font>
      <font style="font-family: Times New Roman; font-size: 10pt">Pre-commencement
      communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
      240.14d-2(b))</font>
    </p>
    <p>
      <font style="font-family: Arial Unicode MS; font-size: 10pt">&#8414;</font>
      <font style="font-family: Times New Roman; font-size: 10pt">Pre-commencement
      communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
      240.13e-4(c))</font>
    </p>
    <div style="margin-bottom: 10pt; margin-right: 0pt; width: 100%; margin-left: 0pt; text-indent: 0pt">
      <div>
        <div style="text-align: left">

        </div>
      </div>
      <div style="page-break-after: always">
        <div style="text-align: center">

        </div>
        <div style="text-align: center">
          <hr style="color: black; height: 1.5pt">

        </div>
      </div>
      <div>
        <div style="text-align: right">

        </div>
      </div>
    </div>
    <p>

    </p>
<div style="text-align:left">
    <table style="font-size: 10pt; margin-bottom: 10.0px; font-family: Times New Roman; width: 100%" cellspacing="0">
      <tr>
        <td style="padding-left: 0.0px; text-align: left" colspan="2" valign="top">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 12%; text-align: left" valign="top">
          <b>Item 2.02</b>
        </td>
        <td style="padding-left: 0.0px; width: 88%; text-align: left" valign="top">
          <b>Results of Operations and Financial Condition</b>
        </td>
      </tr>
      <tr>
        <td style="width: 12%">

        </td>
        <td style="width: 88%">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; text-align: left" colspan="2" valign="top">
          On May 12, 2011, Ameron International Corporation issued the press
          release attached hereto as Exhibit 99.1 providing updates on its
          full-year earnings guidance for 2011, and including preliminary
          expected results for the second quarter ending May 29, 2011.

          <p style="margin-bottom: 0px; margin-top: 0px">
            &#160;
          </p>
          <p style="margin-bottom: 0px; margin-top: 0px">
            The information in this Current Report and Exhibit 99.1 attached
            hereto is intended to be furnished and shall not be deemed &#8220;filed&#8221;
            for purposes of Section 18 of the Securities Exchange Act of 1934
            (the &#8220;Exchange Act&#8221;) or otherwise subject to the liabilities of
            that section, nor shall it be deemed incorporated by reference in
            any filing under the Securities Act of 1933, as amended, or the
            Exchange Act, except as expressly set forth by specific reference
            in such filing.
          </p>
        </td>
      </tr>
      <tr>
        <td colspan="2">
          &#160;
        </td>
      </tr>
      <tr>
        <td colspan="2">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 12%; text-align: left" valign="top">
          <b>Item 9.01.</b>
        </td>
        <td style="padding-left: 0.0px; width: 88%; text-align: left" valign="top">
          <b>Financial Statements and Exhibits.</b>
        </td>
      </tr>
      <tr>
        <td colspan="2">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px" colspan="2" valign="top">
          (d) Exhibits
        </td>
      </tr>
      <tr>
        <td colspan="2">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; width: 12%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            <u><b>Exhibit No.</b></u>
          </p>
        </td>
        <td style="padding-left: 0.0px; width: 88%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            <u><b>Description</b></u>
          </p>
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; padding-right: 0.0px; white-space: nowrap; width: 12%; text-align: left" valign="top">
          99.1
        </td>
        <td style="padding-left: 0.0px; width: 88%; text-align: left" valign="top">
          News Release dated May 12, 2011
        </td>
      </tr>
    </table>
    </div>
    <div style="margin-bottom: 10pt; margin-right: 0pt; width: 100%; margin-left: 0pt; text-indent: 0pt">
      <div>
        <div style="text-align: left">

        </div>
      </div>
      <div style="page-break-after: always">
        <div style="text-align: center">

        </div>
        <div style="text-align: center">
          <hr style="color: black; height: 1.5pt">

        </div>
      </div>
      <div>
        <div style="text-align: right">

        </div>
      </div>
    </div>
    <p>

    </p>
    <p style="text-align: center">
      <b>SIGNATURES</b>
    </p>
    <p style="text-align: left">
      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 thereto duly authorized.
    </p>
<div style="text-align:left">
    <table style="font-size: 10pt; margin-bottom: 10.0px; font-family: Times New Roman; width: 100%" cellspacing="0">
      <tr>
        <td style="width: 45%">

        </td>
        <td style="padding-left: 0.0px; text-align: left" colspan="2" valign="top">
          AMERON INTERNATIONAL CORPORATION
        </td>
      </tr>
      <tr>
        <td style="width: 45%">

        </td>
        <td style="width: 3%">

        </td>
        <td style="padding-left: 0.0px; width: 52%; text-align: left" valign="top">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="width: 45%">

        </td>
        <td style="width: 3%">

        </td>
        <td style="padding-left: 0.0px; width: 52%; text-align: left" valign="top">
          &#160;
        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; padding-bottom: 2.0px; width: 45%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            Dated: May 12, 2011
          </p>
        </td>
        <td style="padding-left: 0.0px; padding-bottom: 2.0px; width: 3%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            By:
          </p>
        </td>
        <td style="padding-left: 0.0px; border-bottom: solid black 1.0pt; width: 52%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            /s/ Leonard J. McGill
          </p>
        </td>
      </tr>
      <tr>
        <td style="width: 45%">

        </td>
        <td style="width: 3%">

        </td>
        <td style="padding-left: 0.0px; width: 52%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            Leonard J. McGill
          </p>
        </td>
      </tr>
      <tr>
        <td style="width: 45%">

        </td>
        <td style="width: 3%">

        </td>
        <td style="padding-left: 0.0px; width: 52%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            Senior Vice President, Secretary and General Counsel
          </p>
        </td>
      </tr>
    </table>
    </div>
    <div style="margin-bottom: 10pt; margin-right: 0pt; width: 100%; margin-left: 0pt; text-indent: 0pt">
      <div>
        <div style="text-align: left">

        </div>
      </div>
      <div style="page-break-after: always">
        <div style="text-align: center">

        </div>
        <div style="text-align: center">
          <hr style="color: black; height: 1.5pt">

        </div>
      </div>
      <div>
        <div style="text-align: right">

        </div>
      </div>
    </div>
    <p style="text-align: center">
      <u><b>EXHIBIT INDEX</b></u>
    </p>
    <p>
      <br>

    </p>
<div style="text-align:left">
    <table style="font-size: 10pt; margin-bottom: 10.0px; font-family: Times New Roman; width: 100%" cellspacing="0">
      <tr>
        <td style="padding-left: 0.0px; width: 12%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            <u><b>Exhibit</b></u>
          </p>
        </td>
        <td style="width: 88%">

        </td>
      </tr>
      <tr>
        <td style="padding-left: 0.0px; padding-right: 0.0px; white-space: nowrap; width: 12%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            99.1
          </p>
        </td>
        <td style="padding-left: 0.0px; width: 88%; text-align: left" valign="top">
          <p style="margin-bottom: 0px; margin-top: 0px">
            News Release dated May 12, 2011
          </p>
        </td>
      </tr>
    </table>
    </div>
    <p style="text-align: left">

    </p>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a6722603ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
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    <title></title>
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    <p style="text-align: right">
      <font style="font-size: 10pt"><b>Exhibit 99.1</b></font>
    </p>
    <p style="text-align: center">
      <u><font style="font-family: Times New Roman; font-size: 12pt"><b>Ameron
      Revises 2011 Guidance</b></font></u>
    </p>
    <p>
      <font style="font-size: 10pt">PASADENA, Calif.--(BUSINESS WIRE)--May 12,
      2011--Ameron International Corporation (NYSE: AMN) today lowered its
      full-year earnings guidance for 2011 to between $1.75 to $2.25 per
      share, before unusual items. The reduced forecast is based on the slow
      start during the first five months of 2011 and competitive pressures in
      certain of the weaker markets served by the Company&#8217;s businesses. Based
      on the results of the first two months of the second quarter, the
      Company may be only marginally profitable in the second quarter ended
      May 29, 2011.</font>
    </p>
    <p>
      <font style="font-size: 10pt">The current market conditions continue to
      make forecasting challenging. The recovery in construction markets that
      was the basis of the Company&#8217;s guidance at the end of the January is not
      occurring as quickly as anticipated. The Company&#8217;s construction related
      businesses, Water Transmission Group and Infrastructure Products Group,
      are currently forecasted to fall short of original expectations.
      Additionally, project delays and unforeseen events are expected to limit
      the ability of the Fiberglass-Composite Pipe Group to offset the decline
      of the other two groups.</font>
    </p>
    <p>
      <font style="font-size: 10pt">In the first quarter, the
      Fiberglass-Composite Pipe Group began 2011 with weaker earnings than in
      the same period of 2010 due to a sales mix shift away from higher-margin
      marine and offshore projects to lower-margin onshore oilfield markets.
      Additionally, profits were impacted by competitive pressures in weaker
      industrial markets and higher raw material costs, especially for
      oil-based resins. The expectation continues for the Fiberglass-Composite
      Pipe Group to perform well for the balance of the year due to high
      energy prices, and sales into marine and offshore markets are still
      expected to increase later in 2011. However, unforeseen events, such as
      the unrest in the Middle East, are restraining the Group&#8217;s upside
      potential. The recent sanctions on sales to customers for projects in
      Libya are expected to reduce previously-forecasted sales and segment
      income, and the pace of planned downstream energy projects elsewhere in
      the region has slowed, leading to increased competitive pressures.
      Longer term, the Fiberglass-Composite Pipe Group remains uniquely
      positioned and should capitalize on its leadership role.</font>
    </p>
    <p>
      <font style="font-size: 10pt">Water Transmission Group was unprofitable
      in the first quarter, suffering from low levels of both water pipe and
      wind towers sales due to weather and difficult market conditions. The
      weather improved, but the markets remain weak due to funding constraints
      and the timing of projects. The outlook for the balance of 2011 is not
      expected to improve sufficiently for the Water Transmission Group to be
      profitable. Longer term, the markets served by the Water Transmission
      Group require infrastructure replacement and enhancements to meet
      growing water needs. The Group has traditionally excelled in meeting the
      water needs in the western U.S. Once the current down cycle ends, the
      Water Transmission Group is expected to return to its historical level
      of profitability.</font>
    </p>
    <div style="margin-bottom: 10pt; margin-right: 0pt; width: 100%; margin-left: 0pt; text-indent: 0pt">
      <div>
        <div style="text-align: left">

        </div>
      </div>
      <div style="page-break-after: always">
        <div style="text-align: center">

        </div>
        <div style="text-align: center">
          <hr style="color: black; height: 1.5pt">

        </div>
      </div>
      <div>
        <div style="text-align: right">

        </div>
      </div>
    </div>
    <p>
      <font style="font-size: 10pt">The Infrastructure Products Group broke
      even in the first quarter and is expected to improve throughout the
      remainder of 2011. However, construction markets remain depressed; and
      neither the Hawaii nor Pole Products Divisions will likely meet earlier
      expectations. Operations in Hawaii are expected to improve gradually
      throughout the balance of the year, while the Pole Products Division is
      forecasted to be marginally profitable. As with the other two groups,
      the Infrastructure Products Group remains positioned to benefit from any
      market improvements and will be successful in the future.</font>
    </p>
    <p>
      <font style="font-size: 10pt">James S. Marlen, Ameron&#8217;s Chairman,
      President and Chief Executive Officer stated, &#8220;We cautioned in January
      that the year was starting slowly and earnings expectations were
      dependent on improvements in construction&#8211;related markets. Such
      improvements have not materialized to date. While earnings are expected
      to be less than previously thought, the Company is expected to generate
      healthy EBITDA. We continue to focus on controlling costs to maximize
      profits during this difficult period and on prudently managing the
      Company&#8217;s strong balance sheet and cash position, which totaled $192.2
      million at February 27, 2011. We also continue to pursue those strategic
      initiatives that were previously disclosed, including development of
      pressure cast steel pipe for water applications, the construction of the
      new pole plant in Oklahoma and worldwide expansion of
      Fiberglass-Composite Pipe Group operations. Looking forward, we believe
      that Ameron&#8217;s three business segments are well positioned to take
      advantage of any improvement in demand. We remain optimistic that as its
      markets stabilize and recover, the Company will capitalize on its strong
      market positions and achieve superior long-term results.&#8221;</font>
    </p>
    <p>
      <font style="font-size: 10pt"><b>About Ameron International Corporation</b></font>
    </p>
    <p>
      <font style="font-size: 10pt">Ameron International Corporation is a
      multinational manufacturer of highly-engineered products and materials
      for the chemical, industrial, energy, transportation and infrastructure
      markets. Traded on the New York Stock Exchange (AMN), Ameron is a
      leading producer of water transmission lines and fabricated steel
      products, such as wind towers; fiberglass-composite pipe for
      transporting oil, chemicals and corrosive fluids and specialized
      materials; and products used in infrastructure projects. The Company&#8217;s
      businesses operate in North America, South America, Europe and Asia. The
      Company also has partial ownership of several unconsolidated affiliates
      in the Middle East.</font>
    </p>
    <p>
      <font style="font-size: 10pt"><b>All statements in this press release
      and in all future press releases that do not directly and exclusively
      relate to historical facts constitute &#8220;forward-looking statements&#8221;
      within the meaning of the Private Securities Litigation Reform Act of
      1995. These statements represent the intentions, plans, expectations and
      beliefs of Ameron International Corporation (the &#8220;Company&#8221; or &#8220;Ameron&#8221;),
      and are subject to risks, uncertainties and other factors, many of which
      are outside the Company&#8217;s control. These factors could cause actual
      results to differ materially from such forward-looking statements. For a
      written description of these factors, see the section titled &#8220;Risk
      Factors&#8221; in the Company&#8217;s Annual Report on Form 10-K for the period
      ended November 30, 2010 and in the Form 10-Q for the fiscal quarter
      ended February 27, 2011. The Company disclaims any intention or
      obligation to update these forward-looking statements whether as a
      result of subsequent events or otherwise except as required by law.</b></font>
    </p>
    <p>
      <font style="font-size: 10pt">CONTACT:</font><font style="font-size: 10pt"><br style="font-size: 10pt"></font><font style="font-size: 10pt">Ameron
      International Corporation</font><font style="font-size: 10pt"><br style="font-size: 10pt"></font><font style="font-size: 10pt">James
      S. Marlen, Chairman, Chief Executive Officer and President</font><font style="font-size: 10pt"><br style="font-size: 10pt"></font><font style="font-size: 10pt">Gary
      Wagner, Senior Vice President, Finance and Administration &amp; Chief
      Financial Officer</font><font style="font-size: 10pt"><br style="font-size: 10pt"></font><font style="font-size: 10pt">James
      R. McLaughlin, Senior Vice President, Corporate Development &amp; Treasurer</font><font style="font-size: 10pt"><br style="font-size: 10pt"></font><font style="font-size: 10pt">Telephone:
      626-683-4000</font>
    </p>
    <p>

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