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Text Box: Horticultural grade Perlite's unique characteristics make it an excellent soil amendment and general horticultural medium. Horticultural Perlite is produced by heating a unique crushed siliceous volcanic rock in special furnaces. Heat causes the crude rock to expand from 4 to some 20 times its original size. Horticultural grade Vermiculite has become a mainstay as a component of soil less growing mediums, as a soil amendment and in many other horticultural uses. Vermiculite is the name given to a group of naturally occurring hydrated laminar minerals similar to mica. When processed in special furnaces, the mineral exfoliates (or expands) into the accordion-like layered particles familiar to many as a part of soil less growing mixes. The processed product is sterile, permanent, odorless and non-toxic. It has the highly desirable characteristic of being lightweight and the capability of moisture and nutrient retention. Industrial Applications Sun Gro Horticulture processes Vermiculite-ore under the Strong-Lite trademark name. These ores are used for insulation, animal feed additives, paint textures, horticultural aggregates and industrial and construction use. Strong-Lite vermiculite is a naturally occurring inert material. It is heat expanded, non-toxic, non-flammable, does not emit fumes or odors and does not attract vermin. Economic Strong-Lite vermiculite provides superior thermal insulation for walls, attics and high temperature industrial applications. Our vermiculite is screened especially for masonry insulation. This grading and screening significantly reduces leakage and spillage around plumbing and electrical outlets.

Gold-Brown
0.5%
7.0-9.5
2.5
4-10 lb/ft3
2-40 mesh and finer
2200-2400F
1.08 kJ/kg.K
.27-.41 BTU.in/h.ft2.F

Color
Free Moisture, Maximum
pH (of water slurry)
Specific Gravity
Expanded Bulk Density (normal)
Mesh Sizes (normal)
Fusion Point
Specific Heat
Thermal Conductivity

Text Box: TYPICAL PHYSICAL PROPERTIES Text Box: TYPICAL SIZES, DENSITIES, AND NAMES OF EXPANDED VERMICULITE1 Text Box: NOTES: These sizes and values are given for general information purposes only. All manufacturers do not necessarily produce all these grades, and many use grades which may not conform to these specifications at all times. Text Box: Click Here: Products Overview

SIZES

DENSITIES

GRADES OR SIZES

MM

IN

U.S. Standard
Inch/Sieve

KG/CU M

LB/CU FT

U.S. SYSTEM

INTERNATIONAL

8 to 16

5/8

5/16 to 5/8

56-72

3.5-4.5

N/A

Premium (6)

4 to 8

5/16

5 mesh to
5/16 inch

64-85

4.0-5.0

1

Large (4)

2 to 4

5/32

10 mesh to
5 mesh

72-90

4.5-5.5

2

Medium (3)

1 to 2

0.08

18 mesh to
10 mesh

75-112

4.7-7.0

3

Fine (2)

0.5 to 1

0.04

35 mesh to
18 mesh

80-144

5.0-9.0

4

Super Fine (1)

less than 0.5

0.02

less than
35 mesh

90-160

5.6-10.0

5

Micron (0)