SM TRADING MARINE MAINTENANCE PRODUCTS
Polishing & Surface Treatment
Professional products for precision lapping of metal and glass, surface smoothing, rust removal and polishing stainless steel and copper.
Precision Surface Preparation and a Clean Polish
Select the appropriate grit and consistency for valve and machine-part lapping, smoothing metal and glass, removing contaminants and light rust, and restoring a polished finish.

GC TYPE · 250 g
Engine Lapping Compound
A blue, high-hardness abrasive for cutting and smoothing metal and glass surfaces, available in three standard grades for different finishing requirements.
Grades & product details
- For cutting and smoothing metal and glass surfaces.
- Additional grit sizes can be ordered separately.
| Grade | Grit | Description |
|---|---|---|
| Coarse | 50# | Very Coarse |
| Medium | 150# | Medium Coarse |
| Fine | 240# | Fine |

AC TYPE · 250 g / 450 g
Grinding & Lapping Compounds
AC-type compounds for precision lapping, fitting, surfacing and valve grinding, offered from micro-fine to very coarse grades.
Grades & product details
- For precision finishing and smoothing of metal and glass.
- Suitable for general machine-shop surfacing and grinding valves.
| Grade | Grit | Description |
|---|---|---|
| 6A / 5A / 4A | 1000# / 800# / 600# | Micro-Fine to Extremely Fine |
| 3A / 2A / 1A / A | 500# / 400# / 320# / 280# | Very Fine to Fine |
| B / C / D / NC | 240# / 220# / 180# / 150# | Medium to Special |
| E / F / G / J | 120# / 100# / 80# / 50# | Coarse to Very Coarse |

IMPA & ISSA 550351 · 550352
Polish Liquid Metal
A liquid polish that removes deposits and dirt while restoring the shine of stainless steel, copper and other suitable metal surfaces.
Product details
- Polishes metal on sinks, ceremonial ware, cars, bicycles and golf clubs.
- Removes light rust from stainless steel and rust from molds.
- Helps remove corrosion, carbide deposits, adhesive residue and dirt.
- Cleans and polishes the surface in one operation.

IMPA & ISSA 55 03 58
Polish Paste Metal
A paste that stays on the application area for controlled cleaning, light rust removal and polishing of stainless steel, copper and other suitable metals.
Product details
- Polishes metal on sinks, ceremonial ware, cars, bicycles and golf clubs.
- Removes light rust from stainless steel and rust from molds.
- Helps remove corrosion, carbide deposits, adhesive residue and dirt.
- Paste consistency is convenient for localized application.
Selection and safety: Test first on an inconspicuous area to check for surface damage or finish changes. Follow the product label and current Safety Data Sheet (SDS), and wear appropriate protective equipment. Thoroughly clean food-contact surfaces after treatment.
Need the Right Grit or Product Form?
Tell us the material, target surface finish and application method, and we will help you select a suitable product.