Makrolon® 2458 - Covestro

1 makrolon 2458 Page 1 of 3 pagesEdition DatasheetGrades / Medical devicesMVR (300 kg) 19 cm /10 min; medical devices; suitable for ETO and steam sterilization at 121 C; biocompatible according to many ISO 10993-1 test requirements; low viscosity; easy release;injection molding - melt temperature 280 - 320 C; available in transparent and opaque colorsISO ShortnamePCPropertyTest ConditionUnitStandardtypical Value-Rheological propertiesCMelt volume-flow rate300 C/ kgcm /10 minISO 113319 Melt mass-flow rate300 C/ kgg/10 minISO 113320 CMolding shrinkage, parallel60x60x2 mm/ 500 bar%ISO shrinkage, normal60x60x2 mm/ 500 bar%ISO 294-40,70 Molding shrinkage, parallel/normalValue range based on generalpractical experience% ISO - properties (23 C/50 % r. h.)CTensile modulus1 mm/minMPaISO 527-1,-22400 CYield stress50 mm/minMPaISO 527-1,-265 CYield strain50 mm/min%ISO 527-1, strain at break50 mm/min%ISO 527-1,-2> 50 stress at break50 mm/minMPaISO 527-1,-270 Strain at break50 mm/min% ISO 527-1.

2 -2130 CTensile creep modulus1 hMPaISO 899-12200 CTensile creep modulus1000 hMPaISO 899-11900 Flexural modulus2 mm/minMPaISO 1782350 Flexural strength2 mm/minMPaISO 17897 Flexural strain at flexural strength2 mm/min%ISO stress at % strain2 mm/minMPaISO 17873 CCharpy impact strength23 CkJ/m ISO 179/1eUNCharpy impact strength-60 CkJ/m ISO 179/1eUNCharpy notched impact strength23 C/ 3 mmkJ/m ISO 21305/based on ISO179/1eA65 PCharpy notched impact strength-30 C/ 3 mmkJ/m ISO 21305/based on ISO179/1eA14 CIzod notched impact strength23 C/ 3 mmkJ/m ISO 21305/based on ISO180/A65 PIzod notched impact strength-30 C/ 3 mmkJ/m ISO 21305/based on ISO180/A15 CCPuncture impact properties - maximum force23 CNISO 6603-25100 CPuncture impact properties - maximum force-30 CNISO 6603-26000 CPuncture energy23 CJISO 6603-255 CPuncture energy-30 CJISO 6603-265 Ball indentation hardness N/mm ISO 2039-1115 Thermal propertiesCGlass transition temperature10 C/min CISO 11357-1,-2146 CTemperature of deflection under MPa CISO 75-1,-2125 CTemperature of deflection under MPa CISO 75-1,-2139 CVicat softening temperature50 N; 50 C/h CISO 306145 Vicat softening temperature50 N; 120 C/h CISO 306146 CCoefficient of linear thermal expansion, parallel23 to 55 C10-4/KISO 11359-1, of linear thermal expansion, normal23 to 55 C10-4/KISO 11359-1, indexMethod A%ISO 4589-228 Thermal conductivity, through-plane23 C; 50 % r.

3 (m K)ISO to heat (ball pressure test) CIEC 60695-10-2138 Flash ignition temperature CASTM D1929480 Self ignition temperature CASTM D1929550 makrolon 2458 Page 2 of 3 pagesEdition DatasheetPropertyTest ConditionUnitStandardtypical Value-Electrical properties (23 C/50 % r. h.)CRelative permittivity100 Hz-IEC permittivity1 MHz-IEC factor100 Hz10-4 IEC factor1 MHz10-4 IEC 6025090 CVolume resistivity Ohm mIEC 600931E14 CSurface resistivity OhmIEC 600931E16 CElectrical strength1 mmkV/mmIEC 60243-134 CComparative tracking index CTIS olution ARatingIEC 60112250 Other properties (23 C)CWater absorption (saturation value)Water at 23 C%ISO absorption (equilibrium value)23 C; 50 % r. kg/m ISO 1183-11200 Bulk densityPelletskg/m ISO 60660 Material specific propertiesRefractive indexProcedure A-ISO for transparent materials3 mm%ISO 14782< transmittance (clear transparent materials)1 mm%ISO 13468-289 CLuminous transmittance (clear transparent materials)2 mm%ISO 13468-289 Luminous transmittance (clear transparent materials)3 mm%ISO 13468-288 Luminous transmittance (clear transparent materials)

4 4 mm%ISO 13468-287 Processing conditions for test specimensCInjection molding - Melt temperature CISO 294280 CInjection molding - Mold temperature CISO 29480 CInjection molding - Injection velocity mm/sISO 294200 Recommended processing and drying conditionsMelt temperatures C-280 - 320 Standard Melt temperature C-300 Barrel Temperatures - Rear C-250 - 260 Barrel Temperatures - Middle C-270 - 280 Barrel Temperatures - Front C-280 - 290 Barrel Temperatures - Nozzle C-290 - 300 Mold Temperatures C-80 - 120 Hold pressure (% of injection pressure ) %-50 - 75 Plastic Back pressure (specific) bar-50 - 150 Peripheral Screw Speed - Size %-30 - 70 Dry Air Drying Temperature C-120 Dry Air Drying Time h-2-3 Moisture Content max. (%) %-<= 0,02 Vent Depth - property characteristics are taken from the CAMPUS plastics data bank and are based on the international catalogue of basic data forplastics according to ISO properties: N = non-break, P = partial break, C = complete breakMakrolon 2458 Page 3 of 3 pagesEdition Datasheet DisclaimerTypical valueThese values are typical values only.

5 Unless explicitly agreed in written form, the do not constitute a binding material specification or warranted values. Values may be affected by the design of themold/die, the processing conditions and coloring/pigmentation of the product. Unless specified to the contrary, the property values given have been established on standardized test specimens atroom manner in which you use and the purpose to which you put and utilize our products, technical assistance and information (whether verbal, written or by way of production evaluations), includingany suggested formulations and recommendations are beyond our control. Therefore, it is imperative that you test our products, technical assistance, information and recommendations to determineto your own satisfaction whether our products, technical assistance and information are suitable for your intended uses and applications. This application-specific analysis must at least includetesting to determine suitability from a technical as well as health, safety, and environmental standpoint.

6 Such testing has not necessarily been done by Covestro . Unless we otherwise agree inwriting, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request. All information and technical assistance is given without warranty orguarantee and is subject to change without notice. It is expressly understood and agreed that you assume and hereby expressly release us from all liability, in tort, contract or otherwise, incurred inconnection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall beconstrued as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any respect to health, safety and environment precautions, the relevant Material Safety Data Sheets (MSDS) and product labels must be observed prior to working with our Medical GradesFor more information on Covestro products in Medical Applications, please request from your sales support contact our Guidance document: GUIDANCE ON USE OF Covestro PRODUCTS INA MEDICAL Processing and Drying ConditionsBarrel temperatures are valid for a standard 3-zone barrel.

7 Temperature set-up for different barrel types may change according to configuration. Values for hold pressure as percentage ofinjection pressure may vary depending on, amongst others, part geometry, injection molding machine and injection mold. Drying conditions are for dry air dryers only. Drying times and dryingtemperatures may differ depending on valid dryer type. Further information is provided by your local Covestro support as well as in the following brochures: Injection Molding of High QualityMolded Parts - Drying; Determining the Dryness of makrolon by TVI Test; The fundamentals of shrinkage in thermoplastics; Shrinkage and deformation of glass fiber reinforced thermoplastics [..]. AGPolycarbonates Business UnitKaiser-Wilhelm-Allee 6051373