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SGA 30/60 Mesh Alluvial Garnet for Sandblasting

SGA 30/60 is an alluvial garnet abrasive for general industrial blasting, coating preparation and maintenance cleaning. Its medium mesh range provides a practical balance between cleaning action and surface profile.

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Model:
SGA30/60
Code:
25132000

30/60 Mesh Blasting Abrasive

SGA 30/60 River Garnet for Blasting

Medium-grade river garnet abrasive for general sandblasting, light to moderate rust removal, coating cleaning and steel surface preparation. SGA 30/60 offers a balanced surface profile, stable particle distribution and lower dust compared with many traditional blasting media.

Balanced Cleaning Profile

Low Dust & Silica-Free

Uniform Mesh Distribution

Bulk Export Packaging

Download COA (30/60 Certificate of Analysis)

What Is SGA 30/60 Garnet?

SGA 30/60 is an alluvial river garnet abrasive with a medium particle size range. Through long-term natural water flow and controlled processing, the material keeps lower soluble salt and chlorine content, stable particle shape and consistent blasting performance.

30/60 Mesh Grade Medium abrasive size for general blasting work.

Light & Moderate Rust Removal Suitable for maintenance blasting and coating cleaning.

Stable Mineral Quality Natural inert mineral, non-toxic and chemically stable.

Lower Dust Blasting Lower dust than many traditional blasting media.

Uniform Surface Profile Helps create a cleaner, more even blasting finish.

Export Packaging Available in 25kg bags and 1000kg jumbo bags.

Key Applications

Maintenance Blasting

For shipyard repair, equipment maintenance and coating cleaning where a balanced blasting profile is required.

Steel structure blasting with garnet abrasive

Steel Surface Preparation

For steel frames, tanks, pipelines, stainless steel parts and general metal surface preparation.

Light to Moderate Rust Removal

SGA 30/60 helps remove light to moderate rust, mill scale and aged coatings while producing a more even surface profile than coarser blasting grades.

Production Process

River garnet is processed through multiple steps to remove impurities, control particle size and prepare stable abrasive grades for export supply.（You can click on "Quality Control System" on the second page to view the specific generation process.）

01 Raw Material
Selected alluvial river garnet source.

02 Washing & Drying
Remove mud, moisture and loose impurities.

03 Screening
Control 30/60 mesh particle size.

04 Inspection & Packing
Verify quality and prepare export bags.

River Garnet Source

Processing & Classification

Laboratory Testing & Quality Control

Quality control is used to verify particle size distribution, bulk density, specific gravity, moisture and chloride content before export supply.

Particle Size Distribution Testing for 30/60 mesh before shipment.

Moisture Control Supports free-flowing abrasive and stable packing.

Chloride Content Reviewed for blasted steel surface preparation.

In-house laboratory for garnet batch inspection and quality testing

Chemical Composition & Physical Properties

Typical Specification
Main Chemical Composition	SiO2 35.72%, Al2O3 24.48%, FeO+Fe2O3 28.22%
Mesh Size	30/60 mesh
Color	Pink / reddish brown
Hardness	7.5-8.0 Mohs
Specific Gravity	4.1-4.2 g/cm³
Bulk Density	2.0-2.5 g/cm³
Main Use	Sandblasting, rust removal and surface preparation

SGA Garnet vs Typical Slag Abrasive

Property	SGA Garnet	Typical Slag
Dust Level	Low	Often higher
Free Silica	Low / silica-free abrasive option	May vary
Cutting Profile	Consistent	Variable
Reuse Potential	Possible depending on condition	Often lower
Surface Cleanliness	Clean and chemically inert	May leave more residue

Packaging and Delivery

SEPPE provides export-ready packaging for SGA garnet abrasives. Common options include 25kg woven bags and 1000kg jumbo bags. Palletizing and container loading can be arranged according to order quantity and destination requirements.

25kg Woven Bag

1000kg Jumbo Bag

Container Loading

FAQ

?How many times can blasting garnet be reused?

Typically 3-5 times depending on blasting pressure, surface condition and recovery system.

?Does blasting garnet contain free silica?

SGA garnet is a silica-free abrasive option and is often chosen as a safer alternative to silica sand.

?What is the difference between 20/40 and 30/60 garnet?

20/40 is coarser and usually chosen for heavier rust or thick coating removal. 30/60 is a more balanced grade for general blasting, lighter rust removal and a finer surface profile.

?Can I get samples before ordering?

Yes. Samples and technical documents can be arranged on request.

Need a Quote or Free Sample?

Send us your required mesh size, application, quantity and destination port. SEPPE will provide product specifications, packaging options and quotation support.

Request a Quote

SEPPE Product Data

SGA 30/60 Particle Size and Quality Control

This page presents the particle-size data published for SEPPE SGA 30/60, a historic SEPPE batch document and the production-control sequence used for alluvial garnet processing.

Download Current TDS Request Batch Documentation

Particle Size Distribution

Particle sizes are shown by sieve opening in millimetres as listed in the current SEPPE technical data sheet. The principal retained fractions are recorded at 0.380 mm and 0.270 mm.

Retained Particle Distribution Cumulative Particle Distribution

Exact Sieve Analysis

Sieve opening (mm)	Retained mass	Cumulative retained
0.830	0.00%	0.00%
0.550	0.00%	0.00%
0.380	28.00%	28.00%
0.270	68.00%	96.00%
0.250	3.80%	99.80%
0.212	0.20%	100.00%

Production and Quality Control

Consistent SGA 30/60 grading depends on control throughout the production process. Raw garnet is selected, separated, washed, dried and screened before finished-product samples are inspected for packing.

Raw Material Selection

Selected alluvial garnet provides the starting material. Particle condition, mineral composition and unwanted material are reviewed before processing.