Sil-cell microcellular filler

SIL-CELL is a refined mineral that is processed by Silbrico Corporation, the lightweight filler that offers many benefits

DESCRIPTION

SIL-CELL glass micro cellular fillers are inert, inorganic, non-toxic, hollow glass particles whose shapes vary to combine different geometries . . . spherical and irregular. These shapes provide advantages as a filler-reinforcement.

IRREGULAR SHAPE

SIL-CELL particles are irregular sphere shapes and have a greater tensile strength than the usual spherical bubbles. SIL-CELL bubbles mechanically key into the binder where other bubbles depend almost totally upon coupling agents for cohesive strength.

MULTIPLE CELLS

Since the shape of each SIL-CELL particle resembles a cluster of micro bubbles, if one surface is broken during handling or processing, there are more bubbles within each particle to provide excellent filler properties.

LOW SPECIFIC GRAVITY

The low effective specific gravity (E.S.G. = 0.18) permits one and one-half pounds of SIL-CELL to displace one gallon of liquid. SIL-CELL has been found cost effective in the manufacture of adhesives, auto body putty, cultured marble, coatings, wall patching compounds and stucco.

STRENGTH

The aspect ratio of SIL-CELL particles imparts tensile strength; and, at the same time, stresses are transmitted throughout the "bubbles" and provide a greater stress/impact distribution.

TYPICAL PHYSICAL PROPERTIES OF SIL-CELL

CHEMICAL ANALYSIS

Silicon Dioxide....................73%

Aluminum Oxide..................17%

Potassium Oxide...................5%

Sodium Oxide.......................3%

Calcium Oxide.......................1%

Plus Trace Elements

GRADES	Sil-32	Sil-42	Sil-35	Sil-43
Oil Absorption ASTM-D-1483 gms. oil per 100 cc	30	36	38	40
Hygroscopic Moisture	0	0	0	0
Surface pH	7.0	7.0	7.0	7.0
Thermal Conductivity	0.36	0.40	0.41	0.43
Color	White	White	White	White
Dry Bulk Density, lb/cu. ft.	7.0	8.5	9.0	10.5
Average Particle Size, Microns	75	45	40	35
Effective Particle density, lb./cu. ft. (g/cmł)	11.2(0.18)	15.6(0.25)	15.6(0.25)	18.7(0.30)
Particle Size Range, Microns	1-300	1-210	1-150	1-150
Fusion Point ( F)	2300	2300	2300	2300

Typical Particle Size Distribution

(U.S. Sieve) % Wt.	Sil-32	Sil-42	Sil-35	Sil-43
+ 50 Mesh	2	TRACE	0	0
- 50 +100	15	5	TRACE	TRACE
-100 +200	33	25	12	5
-200	50	70	88	95

When molding a product, the volume of the mold is the basic measurement; the bar chart shows the comparison in weight/volume.

SIL-CELL is used in rotation molding; cultured marble; thermo-set castings; syntactic foam; SMC and BMC compounds; auto body putty; sealants and adhesives; patching compounds; FRP spray and hand lay up; tub and shower enclosures; and, explosives.

SIL-CELL is available with a variety of proprietary coatings to enhance its performance.

MIXING PROCEDURE

The use of a low shear, folding type mixer is desirable to minimize particle breakage. When mixing SIL-CELL, it is important that it is thoroughly mixed and "wet out."

Technical data shown is considered accurate and reliable. However, there is no guarantee of results, and no formulation gives permission to violate any patent.

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