Pumice Grit
Pumice is a natural mineral sourced from volcanic ash. It is a light, soft abrasive used in a wide variety of applications. As a natural product, variability from sources provides unique performance properties.
Pumice Grit
Pumice Blasting Media is a natural product sourced from volcanic ash formed by the solidification of lava permeated with gas bubbles. Pumice Grit is used as an abrasive in a wide variety of applications and is praised for its low hardness, absorbency, and grittiness.
This is the delicate media of the blasting world. Pumice grit blasting offers impressive results without the tough force of harder abrasives. Low in hardness, high in control, and totally benign, it is the media you use when precision matters.
Benefits
- Friable and Abrasive
- Gentle and Low Bulk Density
- Chemically Benign
- Low Damage to a Variety of Surfaces
- Available From Large Particles to Ultra-Fine Grades
- High Control Over Surface Finish
Applications
- Polishing Metal and Plastic Surfaces
- Grinding and Polishing Glass
- Tooth and Denture Polishing
- Rubbing Compounds for Removing Scratches
- Tumbling Plastic Parts for Highly Polished Finishes
- Cleaning Circuit Boards and Sensitive Electronics
- Blast Cleaning Sensitive Surfaces and Buildings
- Hand Soaps, Foot and Hand Scrubs, and Exfoliating Creams
When it comes to versatility, pumice blasting media can perform in many ways. It polishes, grinds, and exfoliates. From the dentist’s toolkit to architectural restoration, pumice grit blasting is trusted in industries that need precision without force.
Pumice is electrically non-conductive. It is ideal for blasting or cleaning near sensitive electronic components or circuitry. From cleaning centuries-old stonework to buffing a modern circuit board, pumice grit delivers just the right balance of abrasive power and gentle care.
Need a blast media that respects your surface as much as you do? Turn to Kramer Industries—the go-to for premium pumice grit solutions. Explore our pumice-blasting media now.
Specifications
Pumice Grit Specifications |
||
|---|---|---|
Grade |
Average Particle Sizethe smaller the mesh number, the coarser the grit |
Spec Sheet |
| #8 | 6-14 Mesh (1410-2362 micron) |  |
| #6 | 10-30 Mesh (595-2000 micron) | |
| #4 | 14-50 Mesh (297-1410 micron) | |
| #3 | 30-100 Mesh (149-595 micron) | |
| #1-1/2 | 40-100 Mesh (149-420 micron) | |
| #1/2 | 50-140 Mesh (105-297 micron) | |
| #0-3/4 | 80-325 Mesh (44-177 micron); 1-10% <325 Mesh | |
| #0-1/2 | 80-325 Mesh (44-177 micron); 1-20% <325 Mesh | |
| #0 | 80-325 Mesh (44-177 micron); 40-70% <325 Mesh | |
| F | 140-325 Mesh (44-105 micron); 55-75% <325 Mesh | |
| FF | 170-325 Mesh (44-88 micron); 65-85% <325 Mesh | |
| FFF | 200-325 Mesh (44-74 micron); 70-90% <325 Mesh | |
| FFFF | 200-325 Mesh (44-74 micron); 75-95% <325 Mesh | |
Frequently Asked Questions (FAQs)
Q1. What is pumice blasting media?
Pumice blasting media is a lightweight, porous abrasive made from natural volcanic rock. It’s ideal for gentle cleaning, polishing, and surface preparation where minimal abrasion is required.
Q2. What are the key applications of pumice grit?
Pumice grit is used for:
- Deburring and finishing delicate metal parts
- Cleaning aircraft turbines and engine components
- Surface prep for soft metals, plastics, rubber, and wood
- Descaling molds and precision parts
Q3. Why choose pumice over other abrasives?
Pumice is ultra-lightweight, non-toxic, chemically inert, and soft. It provides a mild cutting action, making it ideal for applications where preserving the surface integrity is critical.
Q4. What industries commonly use pumice blasting media?
Industries include aerospace, automotive, electronics, plastic injection molding, and jewelry manufacturing—especially when fine detail or surface protection is essential
Q5. Can pumice grit be used in all types of blasting equipment?
Pumice is best suited for suction and pressure blast cabinets. It may require specific airflow adjustments due to its lightweight nature.
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