VERMICULITE - universal mineral

Applied in construction, agriculture, metallurgy, breeding, ...

It is suitable for building non-combustible, fire-proof and insulation boards, where fire resistance and high temperatures are required.

Vermiculite - (Mg,Fe,Al)3(Al,Si)4O10(OH)2·4(H2O)

Vermiculite is very universal mineral. It is clean, with no fragrance, odorless and mold-resistant. It has a remarkable ability to expand many times during heating. This property is known as exfoliation (peeling, flaking).

The use of vermiculite is very broad. It can be used in many applications, most of which require exfoliated vermiculite. Once the vermiculite has undergone exfoliation, it is sterile because of the high temperature during production.

Unlike similar minerals, vermiculite does not contain asbestos or fibrous carcinogenic particles.

What is exfoliation?

The basic component of vermiculite is inter-layer water. When the vermiculite particle is rapidly heated, the interlayer crystalline water is converted into vapor. The pressure of this water causes that the layers begin to separate from each other, and the vermiculite scale creates particles that are twenty to thirty times more voluminous than the original.

Particles are carefully divided into five classes according to the size range:

Micron (0-1 mm)
Superfine (0-2 mm)
Fine (0-3 mm)
Medium (0-5 mm)
Large (0-8mm)

Vermiculite in industry

Expanded vermiculite is widely used as high temperature insulation in the production of metallurgy, foundry, glassworks. It is used as a bulk insulation and admixture for concrete and mortar in the building industry and as a sorbent in the chemical industry.

Vermiculite in garden

Vermiculite is a 100% natural mineral additive suitable for substrates of indoor and outdoor plants. It fulfills the function of the water reservoir (or fertilizer), which is gradually released into the soil. It can suck up an extreme amount of water, thus reducing the likelihood of rot and mold. The varied granularity of vermiculite allows access to air to the roots.

Common used for:

Seed germination of plants (without addition of soil or garden substrate)
Cultivation of plants without soil, called hydroponics
Storing fruits, vegetables, onions and tubers (maintains ideal moisture, reduces the likelihood of rot)

Vermiculite in breeding

Vermiculite does not contain chemicals, is naturally sterile, odor-neutral, perfectly absorbs moisture and is an excellent thermal insulator. For these unique features, it is popular among pet breeders.

Vermiculite can be used In breeding as:

Substrate for incubation of eggs
Teraristic substrate for cold-blooded animals
Bedding - residential and outdoor use
Thermally insulating materiál.

Vermiculite boards

In the construction industry, vermiculite has a wide use in the form of non-combustible, fire-proof and insulation boards. These boards are harmless to health, highly durable, strong and mechanically stable. They can be machined with conventional woodworking tools and only minimal dust is produced during their processing.

Production of fire-resistant and insulation products for construction purposes and protection of building structures (see Grenamat A, AL, B, C)
Production of insulating materials for fireplaces, stoves, boilers, chimneys and other heat sources (see Grenamat AS)
Use as high temperature insulation for iron and non-ferrous foundries, glass foundries and heat treatment furnaces (see Grenamat HTI)
Construction - an admixture for lightweight and insulation concrete, admixture for special plastering, admixture for low density floor and roof paints, loose insulation for building construction cavities
Automotive industry - manufacture of automotive friction lining
Metallurgy - insulation of metallurgical and foundry liquid alloy during transport and handling
Agriculture - agglomeration of agricultural land (lightening and increase of hygroscopicity), carrier medium for fertilizers and biopesticide agents
Gardening - admixture for garden moisture retention substrates, growth medium for seed germination and cultivation, hydroponics support
Breeding - bedding for domestic animals and reptiles (including incubation beds for hatching reptiles), drug carrier medium in feed mixtures

	Grain (mm)	Bulk weight (kg/m3)
Micron	0,250 - 0,710	120 - 140
Superfine	0,355 - 1,000	110 - 130
Fine	0,710 - 2,000	95 - 115
Medium	1,400 - 4,000	90 - 110
Large	2,800 - 8,000	85 - 105

Fraction	Density (average)	Package type	Quantity							Sizes of full pallet (mm)
	Density (average)		Bag	Pallet			Truck (full loaded)			width	length	height
	kg/m³		litres	pcs	m³	kg (brutto)	pallets	m³	kg (brutto)	cm	cm	cm
Micron	130,0	Paper bag	80	30	2,40	342	28	67,2	9 576	90	125	230
Micron	130,0	Bag PE-LD	90	30	2,70	381	23	62,1	8 763	95	135	250
Superfine	117,5	Paper bag	80	30	2,40	312	28	67,2	8 736	90	125	230
Superfine	117,5	Bag PE-LD	90	30	2,70	347	23	62,1	7 987	95	135	250
Fine	105,0	Paper bag	80	30	2,40	282	28	67,2	7 896	90	125	230
Fine	105,0	Bag PE-LD	90	30	2,70	314	23	62,1	7 211	95	135	250
Medium	100,0	Paper bag	80	30	2,40	270	28	67,2	7 560	90	125	230
Medium	100,0	Bag PE-LD	90	30	2,70	300	23	62,1	6 900	95	135	250
Large	95,0	Paper bag	80	30	2,40	258	28	67,2	7 224	90	125	230
Large	95,0	Bag PE-LD	90	30	2,70	287	23	62,1	6 590	95	135	250

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