
	Where results make sense

Topic: Perlite

Related Topics

Vermiculite

Aluminum oxide

Diatomaceous earth

Oxygen

Sodium

Quartz

Steel

List of minerals

Heterokont

Wikipedia Cocktail Guide

Apollo 11

Toothpaste

Estonia

Bologna

Beer Hall Putsch

In the News (Fri 25 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Perlite and Hydroponics: Possible Substitute for MeBr?
		Perlite is a unique volcanic mineral that has been used for years to amend professional potting soils made from peat moss.
		Using perlite, Hochmuth and colleagues planted Galia muskmelons in walk-in tunnels and low tunnels during the winter/spring and fall/winter growing seasons in 1997 and in the winter/spring season in 1998.
		Since it is sterile, perlite is free of diseases, seeds, and insects.
	www.ars.usda.gov /is/np/mba/apr99/perlite.htm (1552 words)

	Perlite - LoveToKnow 1911
		In polarized light the perlitic glass is usually quite isotropic, but sometimes the internal part of some of the spheres has a slight double refraction which is apparently due to strain.
		Perlitic structure is not confined to glass, but may be seen also in that variety of opal which is called hyalite.
		It is easy to imitate perlitic structure by taking a little Canada balsam and heating it on a slip of glass till most of the volatile matters are driven out; then drop it in a basin of cold water and typical perlitic structure will be produced.
	www.1911encyclopedia.org /Perlite (819 words)

	Role of Perlite in Hydroponic Culture
		The outstanding feature of perlite is the ease with which a constant supply of water and nutrients can be maintained in the substrate simply by placing the plant container in a shallow reservoir of nutrient solution.
		Perlite's free-draining nature means that it retains less than half this amount of water.
		Perlite is physically stable and, unlike rockwool, will retain its excellent air/water balance for many years if handled carefully.
	www.cropking.com /perlite2.shtml (560 words)

	Perlite in the steel and foundry industries
		Perlite insulation is used in high temperature applications in the steel and foundry industries such as ladle topping, hot topping and risering, in topping compounds, in exothermic and insulating shapes, as a cushioning agent, in molding sand and in the manufacture of refractory blocks and bricks.
		Perlite is used in the manufacture of refractories where the average temperature does not exceed approximately 1 100°C. Because of its excellent insulating properties, there is substantial usage of perlite in refractory castables, bricks and blocks.
		Perlite is added to foundry core and molding sand mixtures as a cushioning agent to compensate for the expansion of crystalline silica as it goes through phase changes at temperatures in excess of 540°C. Casting defects such as buckles, veining, fissuring and penetration are minimized and cleaning room costs are reduced.
	www.perlite.dk /foundry.htm (455 words)

	Perlite Concrete Grade (Site not responding. Last check: )
		Perlite is a type of non-metallic volcanic mineral which when heated to suitable temperature, will expand from 4 to 20 times its original volume.
		Perlite insulating concrete is the ideal underslab insulation; it is resistant to fungus, decay, mildew, vermin, and moisture.
		Perlite concrete should be deposited and screened in a continuous operation until the placing of a panel or section is complete.
	www.unitedperlite.net /cg.htm (1650 words)

	PERLITE,perlite,expanded perlite,perlite ore,perlite rock,raw perlite,foundry perlite ,..turkey perlite..PERLITE IN ...
		Perlite is distinguishable from other volcanic glasses when heat it to a suitable point, it expands from four to twenty times its original volume.
		When perlite is used as an aggregate in concrete, a lightweight, fire resistant, insulating concrete is produced that is ideal for roof decks and other applications.
		Perlite can also be used as an aggregate in Portland cement and gypsum plasters for exterior applications and for the fire protection of beams and columns.
	www.pertas.net /PERLITE.html (580 words)

	Perlite for textured coatings
		In addition, because perlite is inorganic and inert, it does not contribute to yellowing in industrial atmospheres.
		Textured coatings utilizing the unique properties of perlite may be formulated for spray application and roller application.
		On a volume basis, significant quantities of perlite may be used to produce distinctive textures.
	www.perlite.dk /coatings.htm (381 words)

	PERLITE FOR UNDERFLOOR INSULATION
		In this application, perlite insulation is poured on the original floor surface, screeded to proper depth, covered with corrugated cardboard or lightweight boards, and a layer of oil paper.
		Perlite underfloor insulation as thick as 12 inches (30 cm) has been applied, but 2-4 inches (6-10 cm) is the normal.
		With perlite underfloor insulation systems, sound transmission from floors to walls is reduced by using expansion strips at the intersection of floors and walls.
	www.silbrico.com /underfl.htm (483 words)

	Perlite Minerals,Perlite Properties,Perlite Uses,Perlite Analysis,Perlite Information
		Perlite is an amorphous volcanic glass which has a relatively high water content and occurs naturally.
		Perlite becomes soft, as it is a glass, at a temperature of 850-900°C. The trapped water in the structure of perlite escapes and makes the material to expand 7 - 15 times of its original volume.
		The density of raw perlite or the unexpanded perlite is around 1100 kg/m3 (1.1 g/cm3).
	www.mineralszone.com /minerals/perlite.html (162 words)

	www.perlite.net
		When perlite is used as an aggregate in concrete, a lightweight, fire resistant, insulating concrete is produced that is ideal for roof decks and other applications.
		Perlite can also be used as an aggregate in Portland cement and gypsum plasters for exterior applications and for the fire protection of beams and columns.
		In horticultural applications, perlite is used throughout the world as a component of soilless growing mixes where it provides aeration and optimum moisture retention for superior plant growth.
	www.perlite.net (829 words)

	The Growing Edge Magazine - Featured Article - Orchids and Perlite: A Perfect Match
		The root systems in perlite were much larger than those in rockwool and in the ensuing years, the perlite plants did so well and they were so easy to manage that we moved our entire collection from rockwool to perlite in the spring of 1992.
		Perlite is a volcanic rock that occurs worldwide, though the two largest deposits are found in Greece and the Southwestern United States.
		For repotting from perlite to perlite, partially fill the new pot with perlite then gently tip the plant out of its old container and if no root trim-ming is required, place it in the new pot without removing the remaining perlite.
	www.growingedge.com /magazine/featured_articles/view_article.php3?AID=080218 (2808 words)

	Design Suggestions and Greenhouse Management for Vegetable Production in Perlite and Rockwool Media in Florida
		Perlite is a volcanic mineral which, when heated, expands (pops like popcorn) into small, white particles (Figure 2).
		Perlite is placed in polyethylene growing bags approximately 36 inches long and 6 inches in diameter containing about 0.5 cubic ft. of perlite.
		In a rockwool or perlite house, water enters the house directly from the well, is mixed with fertilizer stocks by proportioners or injectors and applied to each plant via drip or micro-irrigation emitters.
	edis.ifas.ufl.edu /CV195 (9520 words)

	Horticultural Perlite and Vermiculite at Home Harvest Garden Supply
		Because perlite is sterile, it is free of disease, seeds, and insects.
		Perlite has been used for many years throughout the world for soil conditioning and as a component of growing mixes with materials such as peat moss or bark.
		Because it is sterile, perlite is free of
	homeharvest.com /soilamendmentsperlitevermiculite.htm (747 words)

	Vermiculite and Perlite from Whittemore Company
		Perlite supports root growth and retains nutrients which it releases for superior plant growth.
		Perlite has many applications in the construction industry.
		A few are, a loose fill insulation in masonry walls, a light weight aggregate in plaster and concrete, a texturing agent and it is used in tile, mortar and grouts.
	www.whittemoreco.com /perlite.htm (171 words)

	Perlite
		Perlite in the natural state is a dense, glassy rock formed by volcanic action.
		Perlite is an amorphous mineral consisting of fused sodium potassium aluminium silicate.
		perlite fillers are inert to all but strong acids or alkalis and have no residual surface reactivity.
	www.dicalite-europe.com /perlite.htm (442 words)

	Perlite! Pearlite! Rah! Rah! Rah!
		Perlite (or Pearlite) has been heralded for many years as being an excellent constituent of soil-less mixes and has more recently been appreciated for its astonishing performance as a hydroponics medium.
		Perlite is a naturally occurring silicous volcanic rock that appears sround the world in its raw ore state as being gray-fl, but when it is quickly heated above 870 degrees Centigrade, it puffs up like popcorn and appears white.
		Perlite is also very clean and sterile when purchased because of the physical processing it endures which can reduce the possibility of fungal or bacterial infestation occurring.
	www.suite101.com /article.cfm/hydroponic_gardening/33242 (280 words)

	May 2006 Guest Feature
		Perlite is a white, lightweight, organic media that is used to increase air porosity for planting mixes in horticulture.
		Perching water under a Perlite green roof will cause the plants to stunt their own growth to survive and may cause anaerobic conditions which may be detrimental to the entire project.
		Perlite can be blown on to a roof with an insulation or mulch blowing truck – thus reducing the time to install a green roof as well as reduce the installation cost.
	www.greenroofs.com /archives/gf_may06.htm (2359 words)

	Aegean perlites company greece, greek perlite, unexpanded raw bulk perlite ore, heat treated construction products, ...
		Aegean Perlites SA extracts in it's raw form the Perlite ore. Perlite can be described as a glassy, volcanic rock having a pearl-like luster and usually exhibiting numerous concentric cracks resembling an onionskin in appearance.
		When particles of perlite are heated to a soft consistency, its 2% to 6% combined water vaporized, forming steam that expand each particle into a mass of glass foam.
		Because of perlite's outstanding insulating characteristics and lightweight, it is widely used as a loose-fill insulation in masonry construction.
	www.aegean-perlites.com /greek-perlite-products.htm (604 words)

	Perlite - Uses in the Garden
		This is due to the rapid expansion of water within perlite, which creates the extremely light perlite that we use within the garden arena, with many benefits when it comes to it's horticultural uses..
		Perlite is used wholly or partly in place or sand or grit in potting compost where it improves aeration, draining and insulation, and also facilitates re-wetting.
		Perlite is an inert, sterile, neutral, ultra lightweight aggregate with a very high air and water-holding capacity.
	www.thegardensuperstore.co.uk /Perlite__uses_in_the_garden.htm (752 words)

	Perlite - BonsaiWIKI by bonsaiTALK
		Perlite is a lightweight, volcanic glass that has been expanded through heat to create a white, porous structure.
		Perlite is often used as a component of soils designed for seedlings and cuttings.
		Perlite's light weight can come in handy when the weight of large containers or shipping charges are a concern.
	wiki.bonsaitalk.com /index.php/Perlite (95 words)

	Horticultural Uses of Perlite and Vermiculite
		Perlite mixes of fine Perlite alone can be used as a seed-starting medium because of the ease of maintaining uniform moisture and temperature levels.
		Perlite's ability to cling to roots and root hairs and the friable nature of a Perlite mix reduces transplant shock, which increases survival rates.
		Perlite exhibits a unique capillary action in that nutrient rich water can be drawn up from a reservoir through a fine Perlite growing media at the rate that is required by a plant.
	www.powen.freeserve.co.uk /Guides/perlverm.htm (2021 words)

	Supreme Perlite Company - The Northwest's Leading Manufacturer of Perlite Products.
		A. Perlite is a naturally occurring siliceous rock that expands 4 to 20 times its original size when rapidly heated to approximately 3,000 °F. In reality, expanded Perlite is a "popped rock" that is inert, lightweight, sterile, permanent, incombustible, asbestos-free, non-toxic, rot and vermin proof and has a neutral pH.
		Perlite's external surface is composed of broken bubbles surrounding the closed frothy cells and is open, extremely large and jagged.
		Perlite is naturally incombustible, resistant to thermal transmission and lightweight.
	www.perlite.com /faqs.htm (869 words)

	[No title]
		Perlite loose fill insulation is an inert volcanic glass expanded by a special heat process that can be treated with water repellent material when necessary.
		The efficiency and economy of perlite loose fill insulation has been proven many years in the insulation of storage tanks for liquid gases, such as oxygen, liquid natural gas and nitrogen at temperatures as low as -400 degrees F (-240 degrees C).
		Perlite is inorganic and therefore rot, vermin, and termite resistant and non-combustible with a fusion point of approximately 2300 degrees F (1260 degrees C).
	www.condeck.com /perlitefill.html (789 words)

	Therm-O-Rock Home of Perlite and Vermiculite
		For sample of our perlite product, you are welcome to e-mail our representitive, or call us toll-free 1.800.879.7625.
		Perlite supports root growth and retains moisture, air, and nutrients which it releases as plants grow.
		Specially expanded perlite to condition, enhance, and mineralize the soil for commercial growers.
	www.thermorock.com /perlite.asp (184 words)

	What is Perlite
		Perlite is a light gray, glassy volcanic rock with a vitreous, pearly luster and a characteristic concentric or perlitic fracture.
		Perlite is an inorganic, naturally occurring mineral and it is as permanent as the walls which contain it.
		Perlite loose-fill insulation has the ability to fill all voids, mortar lines, and ear holes thus enabling it to reduce the airborne sound transmission through walls.
	www.idahominerals.com /description.htm (531 words)

	Delta Sistem Construction Structural Insulation Materials - Perlite, Perlite Products, Etiper Perlite, Classified ...
		The definition of 'Perlite' means a type of volcanic glass having water drops within the mass formed due to cooling of lavas in acid phase of magma and breaking as observed on microscope.
		Etiper Perlite is very light because of there is thousands of open and closed air blanks in constitution of Etiper Perlite.
		Perlite is also used as an additive to casting sand for iron steel casting.
	www.deltasistem.com.tr /english (391 words)

	[Report] Economics of Perlite Market Research, Trends, Analysis
		Most perlite is expanded to produce an ultra light aggregate, expanded perlite, which is used in building products, fillers, filtration and horticulture.
		Chinese demand for perlite is forecast to grow at 10%, the main factor behind a predicted 3% annual growth rate in Asia over the next five years.
		Perlite expanders are affected by recent increases in energy costs and are likely to exert pressure to reduce any increase in price for unexpanded perlite in the older industrial economies.
	www.the-infoshop.com /study/ros27479_perlite.html (497 words)

Try your search on: Qwika (all wikis)