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Welcome to the Zappa-Stewart Superabsorbent Blog

Chase Corp Editor

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Recent Posts

SAPs in Food & Beverage: Cleanup, Spill Kits & Packaging

Washdowns, ingredient spills, and changeovers add time and slip hazards. Superabsorbent polymers (SAPs) capture and immobilize liquids quickly, making cleanup faster and safer while supporting housekeeping SOPs. SAPs also support spill kits and certain packaging absorbents where permitted.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

Superabsorbent Polymers (SAPs): What They Are and How They Work, FAQ's


Superabsorbent polymers (SAPs) rapidly immobilize free liquid by converting it into a stable gel, helping sites cut handling/disposal costs, reduce risk, and meet landfill “no free liquids” requirements. Below you’ll find quick answers to the most common questions we get about SAPs—plus where to use them and how to validate performance in the field.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

How SAPs Cut Coal Ash Disposal Costs by Over 20%


Superabsorbent polymers (SAPs) cut coal-ash (CCR) disposal costs by 20%+ because they work at ultra-low dosage rates (often ~0.3–0.5%), solidify in 15–30 minutes, and don’t add bulk—so you save on labor, trucking, and tipping fees. Unlike lime/cement, SAPs are inert and non-corrosive, avoid high-pH waste profile changes, and keep projects compliant with EPA Method 9095B Paint Filter requirements—even in saturated ash.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

30 Minute ZapZorb Solutions for HDD

Managing HDD waste slurry doesn’t have to mean truckloads of sawdust, curing delays, and high disposal costs. Superabsorbent polymers (SAPs) from Zappa-Stewart deliver landfill-ready solids in under 30 minutes—cutting pit volumes by 90% and reducing disposal costs by more than 20%. Backed by real-world case studies, SAPs prove to be the faster, cleaner, and more cost-effective alternative to traditional absorbents.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

The Environmental Benefits of Superabsorbent Polymers in Tunneling, Directional Drilling, and Liquid Waste Remediation

Reducing environmental impact is a growing priority in directional drilling, tunneling, and heavy construction. One innovative solution leading the way is superabsorbent polymers (SAPs) — sustainable, high-performance materials that solidify directional drilling mud and tunnel muck while dramatically lowering greenhouse gas emissions compared to traditional materials like Portland cement and quicklime.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

The Role of Super Absorbent Polymers (SAP) in Tunneling Operations

Tunneling has emerged as the least disruptive and most efficient methodology for rail and vehicle transportation, clean water and wastewater security and conservation as well as security for the movement of chemicals and hydrocarbon through sensitive environments.

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Topics: SAP, SAP Applications, HDD, ZapOut, Tunneling

The Surprising Role of Superabsorbent Polymers at the Gas Pump

Clean fuel performs better than dirty fuel. Dirt, dust, and grime can get into your fuel and seriously damage your vehicle’s engine. It's fairly obvious those materials pose a risk, but did you know that water is also considered to be a very dangerous contaminant of fuel?

When water enters a vehicle’s fuel supply, the vehicle will noticeably sputter or stall. This is due to diluted fuel reaching the fuel injectors or carburetors, pumping the vehicle’s engine with a weakened power source.

This is considered to be a "best-case scenario" of water contamination. Did you know that water can do irreparable damage to your vehicle? Even a small amount of water in your fuel tank can ruin the electric fuel pump, clog up the fuel lines, rust the interior of the tank, and cause fuel injector tips to explode.

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Topics: SAP Applications