PUMICE INFORMATION

Pumice is a soft, friable natural abrasive. It is produced in more than 10 particle sizes from very fine powder to granules and even in lumps and boulders. 

Pumice provides a great balance between moisture retention and air circulation to the roots of bonsai trees.  It is carefully graded and essentially free of fine material. It is additionally utilized for hydroponics as a soilless developing medium. Bonsai pumice is what many pros and serious bonsai enthusiasts use as an important component in their soil.

PUMICE USES

Pumice is broadly used in construction to make lightweight concrete, Concrete blocks and a fine-grained variant of pumice called pozzolan is blended with  cement. In manufacturing, it is used as a mild abrasive for surface finish, in pencil erasers, as a filler, with stone washed denim, anti-skid material, and a filter medium in water filtration, in cosmetics as a corrective beauty exfoliant, additive to soap,  for green products of all kinds, and progressively for the pet industry.

Pumice

Grades of PUMICE

Pumice #5 Filter

PUMICE #5 FILTER INFORMATION

This Pumice is specially graded to water filter size compared to sand media. Pumice is a faster filter and has a lower specific gravity. This item is useful in very large gravity filters and in canister filters.

Packing: Special 25 lb 1 cu ft bags on request 50 lb 2 cu ft bags standard Super Sacks 1000 lb 40 cu ft
Origin: USA

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CHEMICAL ANALYSIS  
SiO2 74.2%
Al2O3 12.5
NaO + K2O 11.1
Fe2O3 1.6
CaO .9
MgO .2
% RETAINED ON US STANDARD MESH  
14 mesh 8%
30 80
60 11
pan 1 allow 5% variation on the extreme screens
slightly more and the intermediate screens
1
density 25lbs/cu ft
oil absorption 58lbs oil/100lbs
Pumice for Paint

PUMICE AVS INFORMATION

This mineral is produced from a deposit of water laid ore, unique for both its purity and unusual percent of finely divided particles.

Color: Off white
Packing: 50 lb Paper bags or Super Sacks
Origin: USA

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CHEMICAL ANALYSIS  
SiO2 72.80%
K2O 5.80%
Fe2O3 0.75%
Na20 3.90%
Al203 14.60%
CaO 0.28%
PARTICLE SIZE DISTRIBUTION (TYPICAL)  
D98 40 MICRON
D50 15 MICRON
DENSITY  
Loose 0.628 gr/cc (39.18 lb/Cu. Ft.)
Tapped 0.776 gr/cc (48.45 lb/Cu. Ft.)
Ultimate 1.09 gr/cc (68.40 lb/Cu. Ft.)
Pumice Chrystal Domestic

PUMICE CHRYSTAL DOMESTIC Information

Please contact us for more information about this mineral grade.

Pumice AVS

PUMICE FOR PAINT INFORMATION

Pumice grades 5 micron and 10 micron are used in paints and coatings. The NSC grades act as functional fillers. Rather than just take up space, these products can be used to adjust opacity, increase scrubability (resistance against scratching) and act as a flattening agent. Most importantly, these minerals are rated non-hazardous and non- toxic. There is no crystalline silica in the product as tested to the levels of detection (0.05%).

Comparative Gloss Data: On request
Packaging: Bags, Super Sacks or bulk
Origin: USA

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TYPICAL CHEMICAL SPECIFICATION
ANALYTE METHOD DETECTION
LIMIT
UNITS LHM200
Lab# 63827
Al203 ICP 0.005 % 13.9
BaO ICP 0.005 % 0.045
CaO ICP 0.005 % 0.81
Fe2O3 ICP 0.005 % 0.87
MgO ICP 0.005 % 0.48
MnO ICP 0.005 % 0.47
TiO2 ICP 0.005 % 0.15
V205 ICP 0.01 % 0.018
Na20 0.05 % 1.55
K20 ICP 0.05 % 1.56
SiO2 ICP 0.01 % 79.6
Moisture ICP 0.01 % 0.31
Pb 1.0 ppm <1.0
SO3 0.1 % 0.1
TOTAL %  99.81    
TYPICAL PHYSICAL PROPERTIES
TEST NCS-5 NCS-10
Hegman 7.75 6.5
Oil Absorption 24 32
Reflectance 74.4 77.2
Median Particle Size 4u 10u
pH (10% in water) 7.2 7.2
Hardness, Mohs 6.1 6.1
Index of Refraction 1.5 1.5
Bulk Density (Loose) lbs/cu.ft 33.7 36.2
Bulking Value, gal/lb 0.05 0.50
Moisture <0.1% <0.1%

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