Dow SURECEL™ 488 is an all-acrylic processing aid for foamed PVC applications. SURECEL™ 488 is an additive with an ultra-high molecular weight that improves extrusion by offering excellent foam expansion, density control, and uniform cell structure.
Dow SURECEL™ 488 processing aid offers drop-in replacement with similar fusion characteristics to comparable acrylic processing aids but at a lower level. Dow SURECEL™ 488 is also 50% more efficient but does not affect the melt viscosity for foamed PVC masterbatches. As a processing aid additive, it has an ultra-high molecular weight with excellent foam expansion, density control, and uniform cell structure to assist with reduced loading levels. SURECEL™ 488 processing aid additives help with extrusion efficiency by assisting calibrated profile processing where maximum calibrator filling is required. Free PVC foam sheet processing will require a lower additive loading rate, and the suggested usage rate, depending on the application, can be in the range of 2.0–7.0 phr. SURECEL™ 488 processing aid offers optimized loadings of acrylic while maintaining similar melt processing compared to Dow PARALOID™ K-445 and SURECEL™ 467. In further comparison, SURECEL™ 488 experienced similar fusion characteristics with higher efficiency without affecting melt viscosity.
Form: Free-flowing powder
Color: White
Physical properties: 0.45–0.53 g/cc bulk density
Excellent foam expansions
Equivalent density control
Uniform cell structure
Reduced loading level
Lack of foaming for PVC expansion and processing
PVC foam extruders experiencing a lack of efficiency and high loading levels
Lack of density control and inconsistent cell structure during processing
Signage and displays
Foamed PVC
Exterior trim boards
Print sheet
Profiles and moldings
Cladding substrates
Foamed PVC deck core
The Dow Chemical Company’s extensive range of PARALOID™ impact modifier additives deliver high-performance durability and impact resistance. Electric vehicles must be able to absorb potential impact from accidents and thermal changes in the environment.
The Dow portfolio of processing aids designed specifically for PVC vinyl foam allows for an easy drop-in replacement with an improved density and
Dow PARALOID™ impact modifiers and processing aids offer electric vehicle manufacturers with lightweight solutions for under-the-hood impact strength for the engine battery enclosures.
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