Advanced Drain & HVAC/R Care Since 1985

Prevent Clogs, Scale & Odors Before They Happen

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Water Treatments

Drain Solutions

Our time-release water treatments tackle industry challenges, preventing buildup, scale, clogging, odors, and more.

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HVAC/R Solutions

HVAC Equipment

We create products for HVAC/R professionals, including mix onsite coil cleaners, preventative treatments for condensate and coil buildup, plus metal restorative solutions.

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35+ Years of Smarter Maintenance Solutions

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About Us

Founded in 1985, Controlled Release Technologies is a family-owned business dedicated to producing exceptional water treatment and HVAC/R products...

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Our Mission

At Controlled Release Technologies, our mission is to innovate and create superior time-release solutions that enhance maintenance efficiency...

Our Products

At Controlled Release Technologies, weโ€™re proud to offer innovative solutions for cleaner, smarter maintenance. Explore our categories below.

Industries We Serve


Food Processing | Beverage Production | Commercial Kitchens

Dirty drains can pose serious challenges for businesses involved in food processing or preparation. Moisture and organic matter create ideal conditions inside drainage pipes for the development of stubborn grime and biofilms. These buildups can accumulate rapidlyโ€”up to an inch per dayโ€”leading to pooling, odors, clogs, and even the risk of cross-contamination, all of which can strain operational efficiency and sanitation protocols.

Our drain products release cleaning agents over time when exposed to water, helping to reduce buildup and support ongoing cleanliness. This time-release action helps maintain a cleaner environment between manual cleanings, especially in hard-to-reach or often-overlooked areas.

Meat Processing Plant Food Factory Commercial Kitchen

Farming and Heat Stress

Heat stress can have devastating impacts on livestock and greenhouse crops. Evaporative cooling systems help keep animals, plants, and farm workers comfortable during hot weather. Unfortunately, cooling pads and evaporative cooling equipment are susceptible to mineral buildup that can cause corrosion and prevent air from flowing through cooling pads. Time-release Cooler Guard is a product that keeps mineral scale in suspension, preventing scale buildup on pads.

Cooler Guard also has another great benefit! Cooler Guard's ability to keep scale in suspension, allows users to run the unit with the bleed-off valve turned off, saving a significant amount of water.

Cooler Pad Livestock Greenhouse Cooler

HVAC/R | Evaporator Coils | Condenser Coils

HVAC/R units need to stay clean for proper heat exchange and drainage. Our products go beyond cleaning with long-term preventative maintenance. In addition to professional strength coil cleaners, we developed micro coatings that prevent buildup, mildew, and mineral scale. Our coatings are easy to use and won't inhibit heat transfer. Our outdoor coating even prevents corrosion caused by salt spray in coastal areas. Plus, our water treatments prevent pooling, clogging, and overflow in drain pans.

InstaCleanCIP: premeasured powder coil cleaners. These 4oz packs are easy to carry, safe on fins, but powerful on buildup.

First Strike MICRO COAT: Sheets water, preventing buildup and mildew on evaporator coils.

Coil Shield: Make condenser coils weatherproof.

Algae Guard (EPA registered) and PanGuard (Green Certified) keep drain pans clean and prevent overflows.

Air Handler Clean Coils Clean Condenser Coil

Preparation | Metals | Drain Pans

HVAC units are a significant investment, and our repair products are designed to extend their lifespan by addressing common issues like leaking drain pans and corroded metals. Most restorations can be completed in the evenings or over a single weekend, minimizing downtime. Our advanced roll-on coating fills fine cracks and pinholes, halting further corrosion and protecting critical components. For a seamless and permanent solution to damaged drain pans, Pancrete, our self-leveling replacement, pours over the old pan, making it easy to install and ensuring long-lasting durability.

Visit Metal Resurfacing to learn more about restoring your HVAC units.

Grocery Cooler Cabinets Industrial Cooler Industrial Freezer

Grocery Coolers | Industrial Freezers | Reach in Coolers

Coolers remove warm air to provide a cold environment that keeps perishable products cool, preventing dangerous growth. Unfortunately, these systems are prone to buildup that can inhibit heat transfer. The accumulation also clogs drain pans, leading to foul odors, pooling, and overflows that leak into walkways. First Strike MICRO COAT prevents coil buildup, while our water treatments keep drains clean, preventing odors and clogging. We have green certified or EPA registered water treatments available.

Grocery Cooler Cabinets Industrial Cooler Industrial Freezer

Sanitary Drains | Slot Drains | Trench Drains

Drains can accumulate growth at alarming rates. It can lead to clogging, pooling, foul odors, overflows, and cross-contamination. Controlled Release Technologies has products to treat water at every point of drainage systems. We have green-certified or EPA registered products to fit every need. Our time-release products clean continuously in the presence of water. They're easy to use, won't dissolve, and can treat systems for up to a month. In addition to continually cleaning and promoting clean drainage systems, our products maintain BOD5 requirements.

Drain Rings form to circular 6-8 inch sanitary drains, to treat water as it enters.

Trench Clean has a long slender design to fit slot or trench drains. It comes with a shock control disk to secure it at any point of the drainage system.

Slot Drains Sanitary Drains Trench Drains

Our Services

Quality products and exceptional support tailored to your needs.

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Client Services

We prioritize strong client relationships. Whether youโ€™re an end-user or distributor, our live support offers real-time answers, ensuring personalized guidance and a seamless experience.

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Fast Shipping

We ensure rapid order processing and shipping to keep your business moving. Your success is our priority, and we strive for excellence with every shipment.

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Science Driven

Our onsite lab is dedicated to quality control and product innovation. If you need a time-release solution for your industry, contact us.

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Creative Assistance

We collaborate with distributors to create customized labels, educational materials, and resources, ensuring you have everything needed to succeed.