Ultra Lapping Paste is a UK-manufactured lapping and honing compound designed for precision engineering, automotive, and mechanical applications where flatness, airtight sealing, and precision performance matter most.
Unlike Diamond Compounds, which are often used to create mirror-like aesthetic finishes at a high cost, Ultra Lapping Paste comes in coarser grades (80–1200 grit) and offers a cost-effective alternative. It is engineered for applications where functionality and accuracy are the priority — perfect for mating surfaces, engine parts, and any component requiring 100% flatness and a seamless seal.
Use with lapping pads, wood or felt tools, or male-female component lapping to achieve consistently flat surfaces. Add Lapping Fluid to improve lubrication, extend tool life, and reduce friction during the lapping process.
Why Choose Ultra Lapping Paste?
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Economic alternative to Diamond Compounds — same precision, at a fraction of the cost.
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Honing and lapping in one — improves surface function, mating tolerances, and airtight seals.
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Versatile application — compatible with lapping pads, wood/felt tools, or mating component faces.
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Lubrication-ready — use with Lapping Fluid to extend tool life and reduce friction.
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Ideal for precision engineering & automotive use — widely used for camshafts, valves, injectors, pistons, and more.
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UK-made — faster supply, consistent quality, and reduced costs compared to imports.
Key Features & Benefits
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Full grade range: coarse through ultra-fine (80 grit → 1 micron).
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Abrasive types: predominantly silicon carbide grades with selected aluminium-oxide options also available.
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Oil-soluble grease carrier — stays on the lap/plate, reduces dust and aids even abrasive distribution.
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Precision finishes: produces flat, scratch-free surfaces needed in precision engineering, gauge work and fitted assemblies.
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Repeatable results: consistent abrasive grade selection helps you step through from coarse cutting to mirror finishes.
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Versatile: suitable for hardened steels, chrome plating, soft non-ferrous metals and many hard alloys.
Typical Applications
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Engine components: camshafts, pistons, valves, injector seats
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Hydraulic & pneumatic assemblies needing ultra-flat sealing surfaces
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Gear faces & mating parts requiring seamless movement
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Toolroom finishing for hardened steels, chrome plating, and non-ferrous metals
By removing micro-imperfections and ensuring true flatness, lapping/honing helps create airtight seals and smooth, wear-resistant surfaces.
Grades & Selection
| Grade Range | Application Purpose |
|---|---|
| 80–220 (Coarse) | Fast stock removal, correcting out-of-flat surfaces |
| 240–600 (Medium) | Refining, preparing surfaces for final finish |
| 800–1 micron (Fine/Ultra-Fine) | Final sealing, smooth sliding motion, precision fit |
Tip: start with a coarser grade to remove defects, then progress to finer grades until you achieve the required surface finish.
How To Use (Brief)
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Clean surfaces thoroughly before starting.
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Apply a thin, even layer of Ultra Lapping Paste.
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Use lapping pads, wood/felt tools, or male-female lapping methods with controlled pressure.
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Add Lapping Fluid for extra lubrication and tool life.
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Progress through coarse → medium → fine grades, cleaning between each stage.
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Finish with fine grit for a precision mating seal.
Take a look at our brief demo video showing ultra lapping paste in action...
Frequently Asked Questions (FAQS)
Q: How does Ultra Lapping Paste compare to Diamond Compounds?
A: Diamond Compounds create high-polish finishes but cost significantly more. Ultra Lapping Paste prioritises precision and flatness for engineering applications at a fraction of the price.
Q: Is this suitable for automotive engine components?
A: Yes — it’s popular for camshafts, valves, injectors, and pistons in both automotive and motorbike industries.
Q: Can I use it with Lapping Fluid?
A: Absolutely — Lapping Fluid improves lubrication, reduces friction, and increases tool life.
