Dow: New silicone additives support more sustainable PU foams for cold chain
Dow announced new generation low cyclics, low volatile silicone surfactants that support innovative rigid polyurethane foam formulations. The new products address key energy efficiency and sustainability trends in the cold chain appliances.
“Our innovations address strong industry demands for additives and surfactants supporting customers to achieve emerging performance, sustainability, and profitability challenges in the rigid polyurethane foam space,” said Justin Weare, North America marketing manager for Polyurethane Additives at Dow. “We continue to expand our industry-leading portfolio of polyurethane additives, combining unrivaled polyurethane knowledge, technical customer support capabilities, and the strongest silicone chemistry history in the industry.”
Vorasurf RF 5374 Additive achieving high polyol side solubility, blend stability and clarity, when complex cabinet design requires enhanced flow and good aesthetics in applications demanding high insulation performance, such as cold chain, commercial and domestic refrigeration appliances, so the company.
Vorasurf RF 5382 Additive is said to bring improved system compatibility to help maximize the insulating performance of pentane-blown rigid foams, helping address challenging energy efficiency criteria in cold chain appliances and installations.
According to the company, Vorasurf RF 5388 Additive helps formulators meet essentially all desired properties of appliance foam systems, with higher pentane solubility, excellent flow and exceptional surface aesthetics to avoid liner defects in domestic or commercial refrigerators and freezers.
Vorasurf SF 2937 Additive is said to supports enhanced k-factor in pour-in-place, continuous panel, closed-cell spray polyurethane and polyisocyanurate (PIR) insulation foam, suitable for use with a variety of traditional and more sustainable blowing agents (HC, HFO, HFC and water-blown systems).
Rossella Riccio, development scientist for Polyurethane Additives at Dow, will present the specifics of these novel silicone surfactants and showcase their performance attributes in rigid polyurethane foam applications during a dedicated webinar on Wednesday, 16 July at 10 a.m. Eastern Time. Interested participants are invited to register online.