Posi-Shell®: Frequently Asked Questions
Posi-Shell is a spray-applied, cement mortar coating, similar to stucco, used as landfill daily cover, intermediate cover, erosion and odor control.
Q) What is the composition of Posi-Shell?
Posi-Shell Advanced Formulation is a mixture of water or leachate, PSM-200 Setting Agent, and Posi-Pak® P-100 fibers. Portland Cement is often added and color can be adjusted with dyes or the use of waste latex paint.
PSM-200™ Setting Agent is a powdered combination of finely ground volcanic clay, natural adhesives, and synthetic polymers. It is non-toxic and delivered in convenient 50-lb (23 kg) bags.
Q) What does PSM-200 stand for?
Polymerized Sodium Montmorillonite
Q) What are Posi-Pak P-100 fibers?
The Posi-Pak P-100 fibers are very fine polyester reinforcing fibers specially coated to disperse in liquid slurries without clumping.
Q) What do P-100 fibers do in the Posi-Shell mixture?
They eliminate cracking and increase durability.
Q) Why should I use Posi-Shell?
Posi-Shell is a multi-purpose product which saves airspace, provides a durable cover and is easy to apply.
Q) How much does Posi-Shell cost?
The typical daily cover cost, including equipment and materials, is usually 3-5 cents per square foot.
Q) How is Posi-Shell different than other spray applied products?
Posi-Shell uses cement mortar where others use paper and water or foam.
Q) Can Posi-Shell be used for long-term cover?
Yes. In addition to daily and intermediate cover, Posi-Shell is used for long-term cover and erosion control. With the addition of Portland cement, durability of up to several years is possible.
Contact Landfill Service Corporation to schedule your free Posi-Shell Demonstration.