Timothy M. Knavish
President and Chief Executive Officer at PPG Industries
Thank you, John, and good morning, everyone. I'd like to welcome you to our fourth quarter 2022 earnings call and my first earnings call as CEO. I'll keep my comments brief, provide a few highlights on the recent quarter, the year 2022 and our outcome. Let me start with the fourth quarter. Our fourth quarter sales of $4.2 billion were near the record levels achieved in 2021 despite significant unfavorable foreign currency translation. Sales were aided by our strong U.S. automotive refinish volume growth as supply chain disruptions started to moderate, and our order books remain robust.
In 2022, our automotive refinish coatings business delivered over 2,000 net new body shop wins as customers continue to value the product technology and industry-leading services and capabilities that this business delivers every day, including what we believe is the best-in-class body shop for repair product. Also aiding our sales were record results in our PPG Comex business in Mexico as our team continued their strong execution and delivered another record quarter of sales and earnings.
PPG Comex sales are now more than $1 billion on annual sales basis, another record year for this business. Our aerospace business continued to recover, delivering organic sales growth of more than 20% on a year-over-year basis, even with continued supply chain challenges. With an initial reopening in China, strong global order book, increased military related growth and PPG's advantaged technology products we expect this business to continue to grow in 2023 and beyond. Our adjusted earnings per diluted share from continuing operations were $1.22, above the midpoint of $1.13 from the guidance we provided in October.
This included more than 20% year-over-year segment earnings improvement driven by selling price realization and strong cost management. On a 2-year stack, selling prices were up about 19%. We achieved this segment earnings improvement despite the significant and unpredictable shutdowns in China from COVID-19 that were worse than what we had anticipated going into the quarter and these have continued into the first quarter. In Europe, despite demand remaining soft, earnings were similar to prior year due to strong selling price realization and cost management.
We also continue to execute our previously announced restructuring programs and realization of acquisition synergies and delivered about $20 million of savings in the quarter. Now a few comments on the full year 2022; the challenges were many, including unprecedented cost inflation, unexpected geopolitical issues in Europe, disruptive and unpredictable shutdowns in China, strong appreciation of the U.S. dollar and rapid escalation in interest rates in the United States.
Though all of these factors impacted our sales and margin performance, the PPG team responded to these challenges, including rapidly implementing real-time selling price increases that, by early 2023, will offset all cumulative cost inflation incurred since early 2021. Given the more difficult macro backdrop, we also announced, and are quickly executing new cost savings initiatives with particular focus on Europe. In 2022, we also made good progress on key strategic initiatives, including strengthening our relationship with the Home Depot, as evidenced by the launch of our new U.S. architectural Pro program, and winning more shelf space with our Glidden MAX Flex spray paint.
In addition, we were honored to be awarded Home Depot's 2022 Overall Innovation Award, which was the first time that a paint supplier has achieved this distinction. Our partnership with the Home Depot continues to be a great opportunity for significant growth in the coming years. The PPG team continued the integration of our recent acquisitions, including timely execution of acquisition-related synergies. These businesses are all executing well and will provide the company with increased organic growth prospects in the next few years.
We made some smaller, but strategically important powder coating acquisitions, which adds the needed manufacturing capacity and greatly aids our technological capabilities in this fast-growing product category. In 2022, we once again lowered our SG&A as a percent of sales, decreasing by about 100 basis points, including the delivery of about $65 million in restructuring savings in the year. While working capital remains higher than we would like, we made solid progress in the second half 2022 to lower our inventories on a sequential basis. We expect cash conversion to return to our historical levels in 2023 and have exited 2022 with a strong and flexible balance sheet.
Throughout 2022, we took actions to bolster our ESG program, including announcing our commitment to the science-based targets initiative, issuing our first-ever diversity report, and finally obtaining shareholder approval to declassify our board and remove supermajority voting requirements. In 2023, I expect our team to continue their strong progress by introducing additional sustainable products for our customers and unveiling our new 2030 sustainability goals. In summary, for 2022, we did not meet our own earnings expectations.
But through the resiliency of the global PPG team, we did deliver record sales of $17.7 billion and set the foundation for many accretive growth initiatives. Now moving to our outlook. As we outlined in our press release, we expect the Q1 demand environment to remain similar to the fourth quarter. However, as the year progresses, we are more confident that we have several catalysts that will enable PPG to drive earnings growth, including improvements in the supply chain, which will further moderate raw material costs, and we expect to see this flow through our P&L more prominently starting in the second quarter.
Also, our strong position in China that will benefit us as the COVID reopening progresses. With respect to Europe, we expect coatings demand stabilization beginning in the second quarter, resulting in higher year-over-year earnings. In the U.S., we will benefit from the continued recovery of the aerospace and automotive refinish businesses and the current strength of our order books in both of those businesses. Also in the U.S., our recent share gains in the architectural business will help buffer lower demand from a softer U.S. housing market.
As a reminder, our overall exposure to the U.S. new home construction market is relatively small, only about 1% of our global revenues. As we said last quarter, we believe our global portfolio mix will prove more resilience in the coming quarters if we experience a broader global economic decline. As normal course of business, we will be highly focused on controlling the controllables, including managing our costs and optimizing working capital.
In summary, while economic conditions are challenging in the near term, I expect segment margin recovery to continue in the first quarter and remain confident about the future earnings capabilities of PPG, and we certainly see a path to return to prior peak operating margins with opportunities to exceed it. As I begin my recovering our historical margin profile, and executing on all levers to return our portfolio to mid- to high-teen percentage segment markets.
At a high level, you can expect me and the PPG team to elevate our collaboration with our customers, bringing them innovative, sustainable and differentiated products and solutions, which will enable our customers to improve their productivity and growth and allow us to improve our own organic growth performance. We'll simplify and optimize our manufacturing and supply chain efficiencies to reduce complexity and deliver productivity for both PPG and our customers.
And we will preserve our legacy of prudent management of our balance sheet, continuing to prioritize cash deployment for shareholder value creation. I plan to share more details on our key initiatives as the year progresses. In closing, I am looking forward to leading this great team, 50,000 employees around the world, as we continue to partner with our customers to create mutual value. This year marks PPG's 140th year anniversary, and I strongly believe that our best days are ahead thanks to our people, industry-leading products, innovative technologies and great customers.
Thank you for your continued confidence in PPG. This concludes our prepared remarks. And now, Emily, would you please open the line for questions.