Apex Engineering's Rydlyme and Rydall products


Several biodegradable descaler and degreasers are available from Apex:

  • RYDLYME, the #1 name in biodegradable descalers, is specifically designed to dissolve the toughest water scale, lime, mud, and rust deposits from virtually any piece of water based equipment. This powerful, yet totally safe, liquid is non-toxic, non-flammable, non-hazardous, non-corrosive and biodegradable; so RYDLYME will not harm your personnel, equipment or our environment!

    Water scale deposits are a significant cause of heat transfer loss, along with the subsequent increase in energy costs. In fact, even a thin layer of scale (1/32") can cause a 30% increase in the cost to operate that piece of equipment. Keeping the cooling passages free of mineral deposits significantly improves efficiency, conserves energy, extends the useful life of the equipment, and saves your plant time & money.

    For more information please visit the Rydlyme website.

    You can order Rydlyme by calling Dreher & Associates at 512-327-3987 or directly from Apex Engineering. Dreher & Associates always stocks smaller quantities in Austin and San Antonio for immediate assistance.


  • RYDALL CC is a biodegradable Coil Cleaner specifically designed to clean the toughest dirt, greases and soil residues from air exposed surfaces of critical cooling or heating equipment.

    RYDALL CC safely cleans and brightens air-cooled condensers, permanent air filters, evaporator coils, window units and any other finned cooling/heating coils or equipment. RYDALL CC is non-corrosive, non-hazardous and biodegradable.  This means that RYDALL CC will not corrode or tarnish aluminum or other metal surfaces, is safe for the user and can be safely disposed of down normal drains.

  • RYDALL MP is our new medium duty, Multi-Purpose surface degreaser/cleaner for industrial and commercial plants, facilities and even households.

    RYDALL MP removes oil, grease, soot, fat, grime, dirt, nicotine and all kinds of other pollutants from all types of surfaces. This strong, versatile and biodegradable degreaser comes in a highly concentrated, non-hazardous form and may be custom diluted to fit virtually any cleaning application. RYDALL MP is a water soluble, mineral oil-free, alkaline solution that contains specially modified additives for improved oil holding capacity, surface wetting and low foaming attributes. Our multi-purpose degreaser is one of the strongest, non-solvent based, degreasers available on the market.
  • RYDALL DD is a water soluble, non-butyl, non-phosphate, non-corrosive, alkali, emulsifier. This innovative product is used specifically on all carbon based derivatives that are found on the oil and/or process side of your critical equipment or systems. RYDALL DD, representing our Definitive Degreaser line, may be utilized among many uses including: heat exchangers, lube oil coolers, machine parts, and any other hydrocarbon fouled equipment found in the petrochemical, pharmaceutical, pulp and paper, power, petroleum, or similar industries.
  • RYDALL CX  is the most unique biodegradable crude deposit cleaner available today! RYDALL CX is specifically designed for cleaning Crude oil eXchangers where pyrophoric iron sulfides are present in the carbon based process side deposits.  It is a heavy duty industrial degreaser with its chemistry being water soluble, non-solvent, and inhibited with surfactants. This chemistry makes it suitable for either mixing with water or with petroleum byproducts that are widely applied in safe chemical cleaning applications.

  • RYDALL VP  This revolutionary product reduces downtime, labor and water required for cleaning and degassing storage tanks and refinery process equipment.  RYDALL VP can be applied in circulation or Vapor Phase applications.  In vapor phase applications, RYDALL VP will remove oil, gas, LEL, H2S and benzene with the added benefit of cleaning up to 70% of the hydrocarbon deposits in a single application.