Home Plant Products Distributers Contacts Blog Our Products Norcal Fines #100 Norcal Grade #2 Norcal Grade #2s Norcal Grade #3 Norcal Grade #4+ Featured Product Horticulture Applications Hydroponics With Expanded Perlite Water Quality Perlite for Water Quality Management Lawns & Graden Perlite for Lawns and Gardens Healthy Plants Pelite the Mineral for Healthy Plants Information presented with the curtesy of the Perlite Institute Horticulture Perlite: Among the unique properties of Horticultural Perlite is its ability to work for many years in the soil. It does this because it is inorganic and does not deteriorate. In addition, perlite is chemically inert and has an essentially neutral pH. Because it is sterile, perlite is free of disease, weed seeds and insects. its lightweight density makes Perlite easy to handle, it is clean and odorless as well. 100% Natural Product: Perlite is a naturally occurring, volcanic rock. When furnaced at high temperatures, Perlite "pops" and expands 7 to 15 times its original volume. The resulting lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth. This allows aeration and drainage of the root system and provides holding capacity for water and nutrients. Horticulture Applications of Expanded Perlite Perlite Horticulture applications and water management. Click on the image above for a slide show of applications Horticultural Expanded Perlite: Uses of Horticulture Perlite Improves soil structure. Eliminates soil crusting and compacting. Increases water holding capacity and fertilizer retention. Improves drainage and aeration. Provides uniform growing media. Produces denser root structure. Propagation of seedlings and cuttings Soil conditioning Hydroponics Roof deck gardens and eco-roofs Nursery stock & Hanging baskets Turf enhancement Newly planted trees and plants Certifications: All of our Expanded Perlite Products are Organic input Material Certified. Certified Product Specifications Manufactured and blended to exacting standards of quality and consistency. TechSpecs Norcal Perlite Metric Standard #2 Granule Size (n"/n") 1/16"--5/8" Mesh Range 4-50 Loose Density 6.5-8 LBS US Sive #8 55-65% US Sive #16 84-88% Standard #2: The most popular product in our horticulture line of superior perlite products. Perlite's Standard #2 horticulture perlite is an outstanding product widely used by nurseries in the propagation of bedding plants and seedlings. Well-suited as a mix-in element with other growth mediums. An outstanding product with a mixture of fine and large perlite granules Metric Hydro 4+ Plus Granule Size (n"/n") 1/8"--5/8" Mesh Range 3-8 Loose Density 6.0-7.5 LBS US Sive #4 53-63% US Sive #6 90-98% US Sive #8 95-100% Hydro 4+Plus: Our Newest product in our horticulture line of superior perlite products. Perlite's Hydro4+ horticulture perlite is an outstanding product widely used by Hydroponic Grow Operations and Hydro Farms An excellent growth medium for all outdoor and indoor plants Excellent Drainage for Hydroponic grow Operations Metric Screened #2s Granule Size (n"/n") 1/16"--3/16" Mesh Range 4-50 Loose Density 6.5-8 LBS US Sive #8 55-65% US Sive #16 85-90% Screened #2s: Perlite Screened #2Ss horticulture perlite is a specialty product widely used in soil mixes by nurseries for the germination of seeds. Well-suited as a mix-in element with other growth mediums Used for enhancing seed propagation. Metric #100 Granule Size (n"/n") 1/16"--2/16 " Mesh Range 8-50 Loose Density 7.0-8.5 LBS US Sive #8 40-50% US Sive #16 - #100 Fines: Small sand like granules of perlite NorCal Perlite's Premium Fines - used for: Multiple horticulture uses Filtration agent Available in various grades and sizes Please call to discuss your needs Metric Premium #3 Granule Size (n"/n") 1/8"--/5/8" Mesh Range 4-30 Loose Density 6.5-8 LBS US Sive #8 60-70% US Sive #16 88-92% Premium #3: NorCal Perlite's Premium #3 horticulture perlite is a superior product with large coarse particles and a higher percentage of fines removed. An excellent growth medium for all outdoor and indoor plants Excellent drainage aeration properties See Describing Perlite Particle Size for an explanation of the data shown above: Information presented with the curtesy of the Perlite Institute Safety Credit Application Certified (510) 232-7337 (510) 232-8127 fax 2605 Goodrick Ave. Richmond, CA 94801