ISEL Refrigeration Fluids

Revenue by Product Line

Revenue by Refrigeration Product Lubricants associated with the ammonia refrigeration industry make up >63% of the company s refrigeration lubricant sales

Industrial Systems Industrial Refrigeration Systems are used in the refrigerated and freezer areas found in most food processing facilities. Examples shown below: o Cold Storage Warehouse o Dairy o Meat Processing Plants o Refrigerated Container ships o Fruit Packaging Plants o Beverage Production Facilities Ammonia Refrigeration Systems are the most prevalent (>60%) HCFC gases like R-22 also in use, HCFC gases are being phased out HCFC being replaced by HFC gases like R-507, increasing the need for polyolester lubricants

Commercial Freezers and Refrigerators in: o Supermarkets and food stores o Restaurants Typically sealed systems, lubricant added at at factory or at re-builder Lubricants can be sold either to compressor manufacturers/re-builder Market available for refrigerant leak detection dyes and leak stops R-22 phaseout forcing customers to move to HFC refrigerants, increasing demand for POE lubricants

Residential Household refrigerators & freezers R-22 still most prevalent Residential A/C systems Typically sealed systems, lubricant added at at factory or at re-builder Lubricants can be sold either to compressor manufacturers/re-builder Market available for refrigerant leak detection dyes and leak stops R-22 phaseout forcing customers to move to HFC refrigerants, increasing demand for POE lubricants

Auto A/C HFC Gases (R-134a) most prevalent POE (NXT-POE-AC) and PAG (NXT-PAG-AC) lubricants most prevalent Lubricants and additives can be sold to repair shops, distributors, and auto parts stores Large market for: o Leak stop additives o Leak detection dyes o Performance enhancers

Types of Refrigeration Lubricants Alkyl-Benzene Base Fluids Napthenic Base Fluids Standard Paraffinic Base Fluids 2-Stage Hydrocracked Base Fluids Polyol Esters (POE) Base Fluids Polyalklene Glycols (PAG) Base Fluids

Types of Refrigeration Lubricants Alkyl-Benzene Base Fluids Napthenic Base Fluids Standard Paraffinic Base Fluids 2-Stage Hydrocracked Base Fluids Ammonia (NXT-717) Polyol Esters (POE) Base Fluids HFC (NXT-POE-LT) Polyalklene Glycols (PAG) Base Fluids Propane/Butane (NXT-4540) Auto-AC (NXT-4055)

Recommended Lubricant by Refrigerant The type of lubricant is dependent on the refrigerant type ASHRAE # Type of Refrigerant Recommended Base Fluid ISEL Lubricant R-134a HFC Polyolester (POE) NXT-POE-LT/NXT-4055 R-22 HCFC Mineral Oil/Alkyl Benzene NXT-MIN R-290 Propane Polyalkalyne Gylcol (PAG) NXT-4540 R-401A HCFC Mineral Oil/Alkyl Benzene NXT-MIN R-401B HCFC Mineral Oil/Alkyl Benzene NXT-MIN R-402A HCFC Mineral Oil/Alkyl Benzene NXT-MIN R-404A HFC Polyolester (POE) NXT-POE-LT R-407C HFC Polyolester (POE) NXT-POE-LT R-417A HFC Mineral Oil or POE NXT-MIN/NXT-POE-LT R-422a/b HFC Mineral Oil or POE NXT-MIN/NXT-POE-LT R-507 HFC Polyolester (POE) NXT-POE-LT R-600 Butane Polyalkalyne Gylcol (PAG) NXT-4540 R-717 Ammonia 2-Stage Hydrocracked NXT-717 R-744 CO 2 Polyolester (POE) NXT-744-POE

Ammonia Refrigeration Systems

Why Do Ammonia Systems Need a Special Lubricant Lubricant in an ammonia system should not leave the separator Lubricant that escapes into a the evaporator is considered a contaminant Lubricant will buildup in a refrigeration system reducing system efficiency

Benefits of NXT-717 2-stage hydrocracked formulation Lower Oil Carryover Less fluid use Less fouling of the evaporator Longer fluid life Formulated for worst case scenarios Better cold temperature fluidity OEM Approved GEA Mycom Howden Bitzer

Benefits of NXT-717 Naphthenics vs 2-Stage Hydrocracked Petroleum bases are refined from two types of crude oil Both produced through the Solvent Extraction Refining Process Production continues to decrease Paraffinic Waxy or sweet crude Most common type of base oil in production Typically have a higher VI than Napthenics Poor pour points due to formation of wax molecule chains Napthenic Asphaltic or sour crude Venezuela is one of the largest sources, high restrictions Poor low temperature fluidity as a result of low VI Atmospheric & Vacuum Distillation Solvent Solvent Dewaxer Crude Oil Gas Oil Solvent Extraction Wax Conventional Base Oil (70-85% Pure.)

Benefits of NXT-717 Naphthenics vs 2-Stage Hydrocracked The 2-Stage Hydrocracking process utilizes high pressure hydrogen to break down most or all of the aromatic molecules apart reforming them into preferred chemical structures The 2-Stage Hydrocracking process also strips virtually all sulfur and nitrogen from the oil. This leads to a far more stable chemical structure. The end result is a fluid that is 99.9% pure. Some classify these fluids as semi-synthetics (or even synthetic) Atmospheric & Vacuum Distillation H 2 Atmospheric Distillation Vacuum Distillation Dewaxer H 2 Crude Oil Hydrocracker Wax High Pressure Heat Transfer Ultra Pure Base Oil (99.9% Pure.)

Benefits of NXT-717 Naphthenics vs 2-Stage Hydrocracked Specification Naphthenic 2-Stage Hydrocracked Purity 70-85 99.91 VI 57 108 Flash Point O C 210 246 Solubility in Ammonia @ 50 O C Volatility @ Weight Loss 22hrs @ 100 O C 2.8 1.9 1.1 0.1

Benefits of NXT-717 Lower Carryover High-volatility fluids tend to vaporize. Because vaporized lubricant cannot separate from ammonia gas, carryover and oil loss result. 2-stage hydrocracked base fluids have very low volatility, reducing carryover and oil loss.

Benefits of NXT-717 Lower Carryover Approximate Lubricant Vapor Concentration @ 100 C NXT-717 2-Stage Hydrocracked

Benefits of NXT-717 Longer Fluid Life NXT-717

Benefits of NXT-717 Better Fluidity NXT-717 has superior low temperature fluidity

Benefits of NXT-717 Longer Fluid Life Darkening of oil is a sign of oxidation, which is likely due to water contamination. Used NXT-717 Used Naphthenic Fluid

Benefits of NXT-717 Longer Fluid Life Due to the high water content in some ammonia refrigeration systems, having a lubricant that offers excellent rust protection is essential. Many competitive fluids do not contain rust and corrosion protection.

Benefits of NXT-717 8.6 million Operating Hours Isel has been producing ammonia refrigeration lubricants for more than 20 years. Through our excellent distributor partnerships, our fluids have been widely used under a variety of private labels throughout North America, Asia and Europe. The end users listed below collectively account for more than 8.6 million operating hours. Several of these end users have been using NXT-717 for more than a decade. Boar s Head Previsions (11+) Yuengling (10+) Reddy Ice (14+) King & Prince Seafood (12+) RCS-Smithfield (10+) Koch Foods (14+) Tropicana (10+) Florida s Natural (13+) T.G. Lee Dairy (11+) Coca Cola Company (8) Food Lion (6) Wayne Farms (7) Winn Dixie (6) American Cold Storage (7) Perdue (9) Bacardi (7) Seven-Up Snapple Southeast (8) Florida Plantation Cold Storage (6) Blue Ribbon Meats (5) Harrison Poultry (7) PepsiCo (8) Publix (6) Southeast Frozen Foods (7) Tyson Fresh Meats (9) Buckhead Beef (9) Dunkin Donuts (7) Burris Logistics (6) Southern Gardens Citrus (5) Borden Dairy (6) US Food Services (9) Peco Foods (7) Sysco Food Services (8)

Benefits of NXT-717 NXT-717 vs Shell Clavus NXT-717 offers better low temperature fluidity Property NXT-717 Shell Clavus 68 Viscosity @ 40 O C 60.6 63.9 Viscosity @ 100 O C 8.4 6.77 Viscosity Index 108 57 Viscosity @ -30 O C 22,469 152,550 Pour Point O C -42-37 Flash Point O C 249 196 Volatility % Weight Loss 0.1 1.2 Solubility in Ammonia @ 50 O C 1.9 2.8 Viscosity Increase (High Temp Oxidation) 1,500 hrs) 2 100

Benefits of NXT-717 NXT-717 vs Shell Clavus-68

Benefits of NXT-717 NXT-717 vs CPI-1009

Benefits of NXT-717 NXT-717 vs Frick #3 NXT-717 offers better low temperature fluidity Property NXT-717 Frick #3 Viscosity @ 40 O C 60.6 62.9 Viscosity @ 100 O C 8.4 8.5 Viscosity Index 108 107 Viscosity @ -30 O C 22,469 43,641 Pour Point O C -42-36 Flash Point O C 249 226 Volatility % Weight Loss 0.1 0.1 Solubility in Ammonia @ 50 O C 1.9 1.9 Viscosity Increase (High Temp Oxidation) 1,500 hrs) 2 2

Benefits of NXT-717 NXT-717 vs CPI-1009

Benefits of NXT-717 Case Study Tropicana Background: Large orange juice processing facility 24 MYCOM screw compressors, most with horsepower exceeding 1,500 Utilizing Mycold-AB-68 (alkylbenzene) Problem: Seeing dramatic oil loss Using more than 51 barrels per year Solution: Switched to NXT-717 (privately labeled for contractor) Because NXT-717 is top-off compatible with Mycold-AB-68, no need to waste fluid Results: Decreased oil consumption to 14 barrels per year 72% reduction in oil use Significant cost savings Continuous Isel customer for more than 10 years

Benefits of NXT-717 Case Study Tropicana North Compressor Room Oil Usage (Adjusted for Change Over):

Benefits of NXT-717 Family of Products NXT-717: Original formulation for use in applications as low as -45 O C NXT-717-FG For use in facilities where only H-1 lubricants are allowed For use in facilities concerned about lubricant cross-contamination NXT-717-SC: For use in applications that have previously used a Naphthenic or Alkyl-Benzene lubricant NXT-717-LT: For use in applications below -45 O C and as low as -54 O C ISO-46 viscosity grade NXT-717-XLT: PAO based formulation ISO-46 and 68 viscosity grades available For applications us low as -70 O C

Benefits of NXT-717 Family of Products Property NXT-717 NXT-717-FG NXT-717-SC NXT-717-LT NXT-717-XLT Viscosity @ 40 C 60.2 61.2 60.8 45.2 62 Viscosity @ 100 C 8.23 8.39 8.32 6.6 10.4 Viscosity Index 104 106 105 96 157 Pour Point C -42-42 -42-48 -60 Lowest Operating Temperature O C -45-45 -45-54 -70 Food Grade Rating H2 H1 H2 H2 H1

Benefits of NXT-717 Family of Products

HFC and HCFC Refrigeration Systems The primary function of an refrigeration lubricant is to lubricate the compressor Carryover (fluid loss) into the refrigeration system should be considered a contaminant It is important that any fluid that carries over into the refrigeration system returns back to the compressor Failure of the lubricant to return back to the compressor can cause warning alarms and even shutdowns due to low fluid level Lubricant trapped within the refrigeration system can also diminish thermal transfer efficiency as it has the tendency to settle in the cold parts of the system Typical HFCSystems

NXT-POE-LT NXT-POE-LT : Polyol-Ester (POE) Refrigeration Lubricant Optimized with HFC and blended refrigerant refrigerants Ideal for R-134a, R-23, R-404a, R-407c, R-410a, R417a, R-422, Ro507, R-508 Excellent wear protection Less susceptible to water contamination then competitive POE lubricants Can be formulated with refrigerant leak detection dye Highly stable formulation Specification NXT- POE- LT-22 NXT- POE- LT-32 NXT- POE- LT-68 NXT- POE- LT-100 NXT- POE- LT-150 NXT- POE-LT- 170 NXT- POE- LT-220 NXT- POE- LT-320 Viscosity @ 40 O C (cst) 20 31 68 98 148 165 210 308 Viscosity @ 100 O C (cst) 4.3 5.4 9.2 11.8 16.9 18.1 21.4 27.9 VI 108 109 110 109 122 121 123 121 Flash Point O C 243 249 262 272 276 282 284 281 Pour Point O C -65-68 -52-50 -37-36 -35-32

NXT-POE-LT NXT-POE-LT offers superior protection against wear

NXT-MIN NXT-MIN: Mineral Oil Refrigeration Lubricant Excellent solubility with HCFC (R-22) and CFC (R-12) systems Excellent wear protection Less susceptible to water contamination Can be formulated with refrigerant leak detection dye Specification NXT-MIN-32 NXT-MIN-68 NXT-MIN-100 NXT-MIN-150 Viscosity @ 40 O C (cst) 30 67 98 148 Viscosity @ 100 O C (cst) 5.1 8.8 11.3 15.8 VI 98 102 101 110 Flash Point O C 196 211 234 252 Pour Point O C -45-42 -40-37

NXT-4540 NXT-4540: Poly-alkalyne Glycol (PAG) Propane Compressor Fluid Ideal for propane (R-290) and butane (R-600) refrigeration systems Excellent wear protection Excellent cold temperature fluidity Specification NXT-4540-68 NXT-4540-100 NXT-4540-150 Viscosity @ 40 O C (cst) 68 101 152 Viscosity @ 100 O C (cst) 13.2 19.0 24.6 VI 199 211 195 Flash Point O C 225 227 265 Pour Point O C -45-44 -42

NXT-744-POE CO 2 refrigeration systems are being seen as a replacement for ammonia an potentially HFC refrigeration systems HFC is an global warming promoting gas and will soon be phased out, and ammonia is toxic CO 2 systems operate at extremely high pressures and typically require a refrigeration system just to keep the CO 2 sufficiently cooled Becoming more popular as it allows a facility to decrease their use of ammonia or HFC

NXT-744-POE POE is becoming a popular choice for CO2 refrigeration systems NXT-744-POE contains a strong anti-wear package which is necessary due to the high system pressures Specification NXT-744- POE-85 NXT-744- POE-140 Viscosity @ 40 O C (cst) 85 135 Viscosity @ 100 O C (cst) 10.67 15.8 VI 109 122 Flash Point O C 272 276 Pour Point O C -50-42

NXT-744-FG Some systems will utilize a fluid similar to an ammonia compressor fluid Less common than POE fluids This fluid can also be used in dry ice manufacturing systens Specification NXT-744-FG Viscosity @ 40 O C (cst) 65 Viscosity @ 100 O C (cst) 8.66 VI 104 Flash Point O C 245 Pour Point O C -42

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