How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture

This tutorial shows briefly how to polish on aluminum casting and make the work looks "silver like" shiny and beautiful.

Step 1: Cast Aluminum with Lost wax casting technique

How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture
How to Polish and Cast Aluminum Sculpture

  • Make plaster pattern.
  • Make silicon rubber mold and wax from the pattern.
  • Cast Aluminum.
  • When designing sprues system, make sure the gating system are not on the highly textured area.

    Step 2: Polish on Aluminum casting

    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture

    We recommend a polishing process called "Two Step" procedure.

    First, preliminary polishing: use rough polishing wheel to remove any imperfection on aluminum casting.

    Second, refining polishing: using cloth polishing, which is relatively soft, polish the aluminum casting. This process is to make the aluminum casting looks like silver like shiny.

    Key Steps:

    Since aluminum is much softer than bronze casting, make sure not damage aluminum casting when polishing.

    You have to practice repeatedly to master the exact force requiring for polishing: not too hard, nor to light. The texture may get damaged if polishing too hard, especially in the preliminary polishing stage.

    Use polishing wax approximately. Do not paste too much wax as it will make the polishing wheel slippy thus hard to perform polishing.

    Step 3: Polished Aluminum cast sculpture

    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture
    How to Polish and Cast Aluminum Sculpture

    These are polished aluminum casting sculptures.

    A successfully polished aluminum casting features:

  • "Silver" like appearance: shiny and nice luster
  • The texture and pattern are well represented like the original patterns.
  • The sculpture feel smooth by hand.

    For more details on how to polish aluminum casting sculpture, Please visit www.TanyFoundry.com

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