Dow PARALOID™EXL-2690 is an MBS impact modifier ideal for polycarbonate/polycarbonate-blend applications that require low-temperature performance and ease of processing.
Dow PARALOID™ EXL impact modifier additives increase the ductility of injection moldings, lower temperature toughness, and reduce melt viscosity for engineering resins. PARALOID™ EXL-2690 is a methacrylate butadiene styrene (MBS) impact modifier additive that provides superior strength and flexural modulus in polycarbonate and polycarbonate blends. PARALOID™ EXL rubber core-shell impact modifiers offer glass transition temperature benefits close to −80ºC for excellent impact performance at extremely low temperatures. PARALOID™ EXL-2690 incorporated into polycarbonate resin systems can experience improved impact strength even at temperatures of −50ºC at a 5% addition level. PARALOID™ EXL-2690 offers improved processing and aging stability compared to other competitive and generic MBS core-shell impact modifiers. It is produced by Dow using a special coagulation technique, which aids in producing an impact modifier with extremely low levels of impurities.
Form: Powder
Color: White
Odor: Sweet
Relative density (air = 1): 0.3–0.5
Water solubility: Insoluble
Percent volatility: <0.9%
Reasonable low T impact and efficiency
Outstanding impact strength in extreme temperatures
Mitigates thickness sensitivity
Good flexural modulus and melt flow retention
Improved thermal and melt stability while offering improved processability
Designed specifically for formulations using polycarbonate and polycarbonate blends (PC/ABS)
Insufficient low-temperature impact in polycarbonates and engineered resin formulations
Thickening sensitivity in the processing of polycarbonate films and plastics parts
Compatibility issues or poor performance of impact modifiers in PC and PC/ABS resin applications
Machine parts
Electronic components and devices
Safety glasses
Automotive parts
Bullet-resistant sheets
Greenhouses
Building skylights and security lights
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.
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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