
Cast Zinc Shot
Picking the right shot media is your most important decision for starting the shot blasting process. You must consider the shot’s ability to remove flash, coatings, and other blemishes, but doing so without damaging the material’s substrate while providing a uniform finish.
Streamline your shot blasting process with Transmet’s effective and productive Cast Zinc Shot. The softest metallic shot for light metal castings.
Transmet’s Cast Zinc Shot delivers painless removal without leaving an aggressive surface profile. They are dense like steel, but gentle enough to deliver a bright and evenly textured finish. Our rapidly solidification process results in a fine grain structure that enhances the durability of our shot.
Cast Zinc Shot vs The Rest
Transmet’s Cast Zinc Shot delivers the best in-class overall care and endurance. It’s manufactured to outlast other blast media while causing less dust. Cast Zinc Shot lasts 2x longer than Cast Stainless Steel despite having the same density. Because it creates significantly less dust, zinc shot makes for an easier cleanup effort. Cast Zinc Shot also lasts 3x longer than Zinc Cut Wire and 4x longer than Cast Steel Shot.
Applications for Cast Zinc Shot
Removing paint, powder coat, e-coat, etc.
Surface finishing of aluminum, zinc, or magnesium castings
Surface preparation for painting or coating
Removing ceramic from investment castings
Descaling and rust removal remanufactured parts
Purpose of Cast Zinc Shot
Cast zinc shot provide a clean bright surface finish with no damage to parts. Delicate features like date codes and part numbers are preserved, as well as threads and mating surfaces. Cast zinc is a soft abrasive with a high bulk density that will quickly even out surface finishes without damaging your parts. Transmet’s Cast Zinc Shot enhances the lifespan of your machine, helping you avoid wear and tear keeping your blast equipment running like new, improving your bottom line for years to come. Our zinc has been thoroughly tested and proven to be a safeguard against wear and tear on your internal components like control cages, wheel liners, and blades. Blast wheels have survived more than 25,000 hours of blasting without experiencing damage or replacement.
TWO ALLOYS OF CAST ZINC SHOT
The ZA4 alloy is the most popular and most aggressive form of Transmet Cast Zinc Shot. It has a greatly increased durability over the HG alloy. The ZA4 alloy will last up to 300% longer than zinc cut wire in blast cleaning operations. The HG alloy is made from High Grade Zinc. This alloy is similar in hardness to zinc cut wire and imparts an equivalent surface finish on castings. The HG alloy lasts up to 50% longer than zinc cut wire in blast cleaning operations.
Product Specifications
Product Name | S.A.E. Equivalent | Cut Wire Equivalent | Typical Shot Diameter (Inches/Microns) | Harness Knoop |
---|---|---|---|---|
RSZ-300 ZA4 | S-110 | 0.010″ | 0.012/300 | 91 |
RSZ-500 ZA4 | S-170 | .020″ | .019/500 | 91 |
RSZ-750 ZA4 | S-230 | .030″ | .029/750 | 91 |
RSZ-850 ZA4 | S-280 | .040″ | .033/850 | 91 |
RSZ-1200 ZA4 | S-390 | 0.055″ | 0.055/1200 | 91 |
RSZ-500 HG | S-170 | .020″ | .019/500 | 68 |
RSZ-750 HG | S-230 | .030″ | .029/750 | 68 |
RSZ-850 HG | S-280 | .040″ | .033/850 | 68 |
- Download Product Literature
- Download Safety Data Sheet
- Download Product Spec Sheet (RSZ-300 ZA4)
- Download Product Spec Sheet (RSZ-500 ZA4/HG)
- Download Product Spec Sheet (RSZ-750 ZA4/HG)
- Download Product Spec Sheet (RSZ-850 ZA4/HG)
- Download Product Spec Sheet (RSZ-1200 ZA4)
Notes:
Standard packaging for HG and ZA4 zinc products is 25 lb. bags.

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