Vermiculite for gardening

Size:1-3mm 2-4mm Color:silver and gold Impurity:3%max Trade terms:FOB CIF CRF Payment terms: T/T L/C

1.What is Horticultural vermiculite

Horticultural vermiculite is a light, absorbent material that is chemically inert and odorless. It is made from flakes of a mica-like hydrated silicate of magnesium-aluminum-iron. The flakes are flash heated to 900 degrees centigrade. Water quickly evaporates as the vermiculite expands like an accordion. This process, known as exfoliation, balloons the flakes to twenty times their original size. With an essentially neutral pH of 7.0, horticultural vermiculite helps with soil aeration and retains moisture, fertilizers, other nutrients and plant treatments.

2. Horticultural vermiculite  Benefits

Horticultural vermiculite is versatile, clean and sterile. While its neutral pH of 7.0 trends toward alkaline because of carbonates in the product, it does not have the pH lowering effect of peat. When combined with peat or composted pine bark, the resulting mix provides faster root growth. Because of its expanded size and light weight, it helps aerate mixes while retaining moisture and nutrients. Horticultural vermiculite is also used to bulk up mixes and lessen compaction.

3:Size :

   Horticulture Vermiculite:1-3mm 2-4mm

4.Vermiculite properties

Heat-resistant, corrosion-resistant, well-ventilation, water preservation, poisonless, odorless, low hardness, burning-avoidness, lighter.non-asbestos ,Low density ,etc

5.Some Vermiculite features

1). Physical appearance

Vermiculite refers to a small group of minerals resembling the lamella structure of the micas.It is dark gray brown to golden brown in color and flake-shaped when dry.When heated to intense temperatures vermiculite expands in volume and its lamellae separate,and thus exfoliate

2). Moisture retention

The space created by exfoliation trap moisture.Ideal for horticultural applications, vermiculite has the capacity to retain several times its weight in water.

3). Air circulation

Vermiculite flakes are irregular in shape allowing better air circulation when exfoliated, .Widely used in horticulture to aerate soil mixes or for hydroponic cultures.

4). Low density

Exfoliation cause a great increase in volume without an increase in mass.Being extremely lightweight,vermiculite is an ideal material to lighten aggregates such as concrete,plaster,and asphalt,and to fill walls and partitions Inert and neutral PH:7-11

6.Vermiculite usage in gardening :

Blocking Mixes

Hydroponics

Micro-Propagation

Potting Mixes

Rooting Cuttings

Seed Germination

Sowing Composts

Twin Scaling Bulbs

Blocking Mixes

Hydroponics

Micro-Propagation

Potting Mixes

Rooting Cuttings

Seed Germination

Sowing Composts

Twin Scaling Bulbs

7.Expanded Vermiculite specifications

 

Item	Specifications	Item	Specification
Thermal Conductivity	0.045 - 0.069w/m °C Under ambient conditions	Bulk density	90-200kgs/m3
PH	7-11	Compressive resistance	100-150 Mpa
Fusion point	1320°C-1370°C	asbestos	None
Moisture content:	0.1%max	Antibioticity	Good
Moisture hoding capacity	220-325% by wt 20-50%by vol	Corrosion resistance	Alkali-resitant
water-absorbable	450-650liter/m3	Impurity	1%max
Combustibility	Non-combustible	Sintering temperature	1150-1250 °C

 

8.Packing:100liter bag or depend on client's demands

My cell phone :8613582186358

Vermiculite for gardening