Revitalize your mould finishes with the Extra-Soft Mould Tool Polishing Stones—engineered for precision, speed, and adaptability.
Key Features
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Silicon Carbide Grit ensures aggressive material removal with minimal effort.
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Rapid breakdown enables the stone to conform smoothly to contours and intricate shapes.
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Fast cutting action especially effective on unhardened steels and non-ferrous materials such as aluminium, brass, and softer alloys.
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Available grits: 120, 240, 320, 400, 600, 800—covering medium to fine finishing needs.
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Standard dimensions: 6″ length for most sizes; pencil stones (5/32″ sq. and 1/8″ sq.) are 4″ long.
Applications
These stones are perfect for:
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Fine contouring and polishing of mould tools and dies.
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Sculpting and finishing curved or rounded surfaces with accuracy.
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Final-stage smoothing on unhardened steel components.
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Working with non-ferrous materials, especially where softness is preferred to avoid damage.
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Complementing other Mould Polishing Stones such as EDM or Super General Purpose variants for a full finishing sequence. See our full range of Mould Polishing Stones for alternatives with different hardness levels.
Looking for more?
- Lapping Fluid – Often used to lubricate when polishing mould tools
- How to Protect Mould Tools from Rust and Corrosion – Keep your mould tools clean and rust-free for better results
- Diamond Ultra Fine Ceramic Stones – The modern approach to first-stage polishing on mould tools
- An Experts Guide to Mould Tool Polishing – An extensive guide to how and why you should polish your mould tools
- EDM Stones – The traditional favourite for mould-tool makers
Frequently Asked Questions (FAQs)
Q: What materials are these stones best suited for?
A: Designed for unhardened steels and non-ferrous materials (e.g., aluminium, brass, copper) where fine contouring is essential.
Q: How does the “extra soft” formulation benefit users?
A: The stones break down quickly, moulding to tool shapes and providing a smooth finish with minimal effort.
Q: Can I get other grit sizes or shapes?
A: The page lists our standard in-stock options. For special sizes, grits, or custom dimensions, please contact us to request availability.
Q: Why choose silicon carbide over aluminium oxide?
A: Silicon carbide offers faster cutting and better performance on softer or non-ferrous materials, and leaves cleaner finishes in satin or polished stages.
Q: What lengths are available?
A: Most stones are 6 inches long; however, pencil stones (5/32″ sq. and 1/8″ sq.) are shorter, at 4 inches.
