LIXIL

Technology

Japan’s first 100% recycled aluminum, made possible by our world-leading technology and supply network.
Producing recycled aluminum generates significantly fewer CO2 emissions than manufacturing primary aluminum.

Chapter 1

PremiAL’s Innovative Circular Material Flow

The manufacture & delivery process

The PremiAL series lineup includes PremiAL for standard products with 50% fewer CO2 emissions, plus made-to-order PremiAL R70 containing 70% recycled aluminum and PremiAL R100 containing 100% recycled aluminum.

LIXIL has established its own material supply routes to secure a stable supply of aluminum scrap, which is processed at in-house melting facilities. The molten metal is purified, then poured into circular molds and cooled to form cylindrical billets. These billets are loaded together with dies into an extrusion press, where high pressure is applied to create aluminum extrusions. Finally, the extrusions undergo heat treatment to ensure they retain the required strength.

We recycle not only manufacturing scrap, but also recover end-of-life products as post-consumer aluminum for reuse in new production.

Using recycled materials reduces environmental impact, but also requires significant effort and cost—including collection of used aluminum products and sorting to remove non-recyclable components and impurities. Aluminum recycling depends on both technology and a stable supply of raw materials. LIXIL has been working to overcome these challenges for nearly 30 years.

Chapter 2

World-leading Technology & Supply Routes

Securing a stable supply of high-quality aluminum scrap through robust supply routes

  • Shredding

    Shredding

  • Dismantling

    Dismantling

  • Sorting

    Sorting

Recycling progress has lagged in the industry until now because discarded window sashes are typically made from mixed alloys and contain components such as screws and crescent locks, making them unusable in their existing form.

Together with suppliers, LIXIL has developed technologies to remove components that cannot be recycled to recover only aluminum. Years of building strong partnerships has helped us secure a stable supply of high-quality aluminum scrap.

  • Aluminum sashes contain parts
    that make them difficult to recycle

    Aluminum sashes contain parts that make them difficult to recycle
  • Screws and crescent locks are mixed in

  • High-precision
    sorting technology

Developing LIXIL’s proprietary aluminum recycling technology

  • Melting

    Melting

  • Purification

    Purification

  • Processing

    Processing

LIXIL accepts sorted aluminum scrap and has developed its own recycling technologies for everything from raw material management and innovative melting processes to downstream manufacturing.

  • Raw material management

    Raw material management

    • Ensuring a safe production system by storing raw materials indoors
    • Applying special processing before feeding materials into machinery
    • Managing raw material grading and alloys
  • Innovative melting processes

    Innovative melting processes

    • Upgrading equipment to improve melting efficiency
    • Enhancing melting methods to utilize a range of recovered materials
    • Applying pre-treatment technologies for difficult-to-process materials
    • Utilizing proprietary melting technologies, including material feeding and purification
  • Downstream manufacturing

    Downstream manufacturing

    • Providing integrated extrusion manufacturing in addition to casting
    • Innovating manufacturing conditions to ensure the quality required for the final product

Chapter 3

Reliable Quality on par with Primary Aluminum

LIXIL’s proprietary recycling technology delivers quality on par with primary aluminum

  • Composition values

    Composition
    values

  • Mechanical properties

    Mechanical
    properties

  • Color tone

    Color tone

Our recycled aluminum matches the quality of new ingots in the alloy composition required for performance, the mechanical properties that ensure extrusion strength, and the color tone of the material itself.

PremiAL has received third-party SuMPO EPD verification
for visualizing the environmental impact of building materials used in construction.

SuMPO EPD JAPAN VERIFIED、SuMPO-EPD-2508-1-1、JR-AD-22001E-B、JR-AD-23001E-B

PremiAL has undergone third-party verification in accordance with Environmental Product Declaration (EPD) standards for greenhouse gas (GHG) emissions up to the aluminum extrusion production stage.（https://ecoleaf-label.jp/）

The environmental information disclosure program operated by the Sustainable Management Promotion Organization (SuMPO) complies with ISO14025 (Type III Environmental Declarations).

Reducing CO2 emissions with PremiAL

The PremiAL series lineup includes PremiAL for standard products,* plus made-to-order PremiAL R70 and PremiAL R100. With its higher recycled-aluminum content, using PremiAL instead of primary material to manufacture products can help significantly reduce CO2 emissions.

* LIXIL-manufactured aluminum extrusions only.

As of September 2025 Standard products Made-to-order products Made-to-order products
NEW PremiAL PremiAL R70 PremiAL R100
CO2 emissions from aluminum extrusion manufacturing to processing and assembly
(Per kilogram of aluminum)
Note: Third-party SuMPO EPD verification obtained
7.1kg -CO2eq *1
6.8kg -CO2eq *2
2.9kg -CO2eq *2
CO2 emissions reduction
(vs new aluminum ingots)
Note: As calculated by LIXIL 		Approx.50% Approx.55% Approx.80%
LIXIL products using PremiAL All products Some products Some products
Recycled aluminum content
60% *3
70% *4
100% *4
Recycled aluminum content certificate Unavailable Available Available

*1 Calculated to include LIXIL-manufactured 6063 alloys, dissimilar alloys, and purchased billets. *2 Applies to 6063 alloys manufactured by LIXIL.
*3 Of raw materials (LIXIL-manufactured 6063 alloys, dissimilar alloys, and purchased billets), the LIXIL-manufactured 6063 alloys utilize 60% or more recycled aluminum. Dissimilar alloys and purchased billets are excluded from the calculation. *4 Recycled aluminum content of raw materials (LIXIL-manufactured 6063 alloys).

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