What's the Difference between EPS (Expanded Polystyrene) and Polyurethane Panels?
Polyurethane Compared to EPS Panels
Our Polyurethane panels may look like other insulated cool room panels, but looks don’t tell the entire story. Many panel systems use Expanded Polystyrene (EPS), a product that’s been in use for over 50 years. EPS has an R-Value of 3.5 to 4.0 per inch.
Our panels use Polyurethane, which was invented to improve upon the shortfalls of EPS. Polyurethane has an R-Value of 7.0 to 7.5 per inch, making it the world’s highest-rated insulation per inch, which explains why it’s the choice of manufacturers of everything from freezers to water coolers to refrigerated semi-trailers.
Better Fire Resistance
EPS can be damaged by temperatures over 180 degrees, so it offers little fire resistance. Class I rated polyurethane—the kind we use—can withstand temperatures of 750 degrees without damage. At those temperatures, it chars but does not burn, so it minimizes the spread of fire. In fact, the material normally self-extinguishes.
Greater Density For Greater Strength
At a minimum density of 2.2 pounds, our panels are more than twice as dense as EPS, which provides greater strength.
Less Environmental Impact
Typically, EPS panels are created in standard sizes and cut at the job site to fit your room requirements. The scraps usually cannot be recycled. In comparison, our cool rooms are designed and hand made to your specific plans, so waste is minimal.
The polyurethane we use acts as its own adhesive, for a strong, consistent bond across the entire panel. EPS manufacturers have to use separate glues, with the quality of the bond dependent on how evenly the glue is spread and how long it dries.
Our Tecool by Chillerman Monoblocks are slide in units with an extensive range of capacity sizes available, for chiller or freezer situations. Simple to install and remove for servicing, built in defrost and easy to use control panel. Single phase 240v plug in. Standard temperatures range from –10°C to +10°C for chillers and –5°C to –23°C for freezers.
An international brand with a long history of producing top quality products, we have worked with the manufacturer to tweak the design and features of the Monoblocks to suit our specific New Zealand conditions. They are made with the highest quality components, including Dixell Controllers and Tecumseh Compressors.