Covestro Makrolon 6555 FR PC

 Covestro Makrolon 6555 FR PC Description 

⚠️Makrolon 6555 FR PC is manufactured at multiple plants. The image on the left shows one form—round pellets—but cylindrical pellets are also available. The materials differ only in form and show virtually no difference in performance. If you have specific requirements regarding pellet form, please contact us.

Covestro Makrolon 6555 FR PC Advantage

• Flame retardant PC, Covestro 6555 FR PC utilizes a potassium perfluorobutylsulfate (PPFBS) flame-retardant system, which provides the material with highly effective flame-retardant properties (UL 94 V0 @ 3.0mm thickness), while remaining halogen-free. It is a halogen free FR PC suitable for use in regions with stringent environmental regulations, such as Europe and the United States.
• Good machinability, Makrolon 6555 halogen-free, flame-retardant PC resin has a melt volume rate (MVR) of 10 g/10 min under test conditions of 300°C and 1.2 kg. With moderate flow rate and viscosity, it is suitable for the vast majority of injection molding machines and has relatively broad requirements for equipment performance.

Why choose Baiyou as Covestro Makrolon 6555 FR PC supplier?

• Leadingflame retardant polycarbonate supplier (FR PC material) , 20+ years of experience in plastic product manufacturing and chemical raw material import and export
• Fastest Arrival, with warehouses in multiple ports
• 1,000+ types of resins are available, and we have cooperated with large petrochemical groups for 30+ years
• Free Samples for production testing
• Wholesale price, even a piece of goods is based on the wholesale price

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 Key Attributes 

Covestro Makrolon 6555 FR PC
Product information
Manufacturer		Covestro AG
Other Certificates		MSDS
Part Marking Code		>PC material<
Color		Transparent polycarbonate
Material Shape		FR PC Pellets
Process		Injection molding
Features		·Flame retardant ·UL 94 V0 ·Medium viscosity
Physical properties	Standard	Value	Unit
Density	ISO 1183	1200	kg/m³
Bulk Density	ISO 60	640	kg/m³
Melt volume rate, MVR at 300℃/1.2kg	ISO 1133	10	cm³/10min
Melt mass flow rate, MVR at 300℃/1.2kg	ISO 1133	10	g/10min
Mold shrinkage, parallel, 60*60*2 mm³/ 500bar	ISO 294-4	0.7	%
Mold shrinkage, normal, 60*60*2 mm³/ 500bar	ISO 294-4	0.75	%
Mold shrinkage, normal/parallel	ISO 2577	0.6-0.8	%
Water absorption, saturation, water at 23℃	ISO 62	0.3	%
Water absorption, equilibrium, 23℃ 50 % r.h.	ISO 62	0.12	%
Water vapor permeability, 23℃ 85 % RH/ 100 μm film	ISO 15106	15	g/(㎡·24 h)
Mechanical behavior (23℃/50% r.h)	Standard	Value	Unit
Tensile modulus, 1 mm/min	ISO 527	2400	MPa
Tensile stress, yield, 50 mm/min	ISO 527	66	MPa
Tensile strain, yield, 50 mm/min	ISO 527	6.2	%
Norminal strain at break, 50 mm/min	ISO 527	>50	%
Stress at break	ISO 527	70	MPa
Strain at break	ISO 527	130	MPa
Tensile creep modulus, 1 h	ISO 899	2200	MPa
Tensile creep modulus, 1000 h	ISO 899	1900	MPa
Flexural modulus, 2 mm/min	ISO 178	2400	MPa
Flexural strength, 2 mm/min	ISO 178	98	MPa
Flexural strain at flexural strength, 2 mm/min	ISO 178	7.1	%
Flexural stress at 3.5% strain	ISO 178	74	MPa
Ball indentation hardness	ISO 2039	115	N/m㎡
Impact	Standard	Value	Unit
Izod impact, unnotched 80*10*3 +23℃	ISO 180/1U	NB	kJ/㎡
Izod impact, unnotched 80*10*3 -30℃	ISO 180/1U	NB	kJ/㎡
Izod impact, notched 80*10*3 +23℃	ISO 180/1A	65	kJ/㎡
Izod impact, notched 80*10*3 -30℃	ISO 180/1A	11	kJ/㎡
Charpy impact strength, 23℃	ISO 179/1eU	N	kJ/㎡
Charpy impact strength, -30℃	ISO 179/1eU	N	kJ/㎡
Charpy impact strength, -60℃	ISO 179/1eU	N	kJ/㎡
Charpy notched impact strength, 23℃, 3 mm	ISO 179/1eA	70P	kJ/㎡
Charpy notched impact strength, -30℃, 3 mm	ISO 179/1eA	14C	kJ/㎡
Puncture impact properties - maximum force, 23℃	ISO 6603-2	5400	N
Puncture impact properties - maximum force, -30℃	ISO 6603-2	6300	N
Puncture energy, 23℃	ISO 6603-2	60	J
Puncture energy, -30℃	ISO 6603-2	65	J
Thermal	Standard	Value	Unit
Glass transition temperature, 10℃/min	ISO 11357	145	°C
Vicat Softening Temperature, rate B/50	ISO 306	144	°C
Vicat Softening Temperature, rate B/120	ISO 306	145	°C
Coefficient of liear thermal expansion, parallel 23 to 55 ℃	ISO 11359	0.65	10⁻⁴/K
Coefficient of liear thermal expansion, normal 23 to 55 ℃	ISO 11359	0.65	10⁻⁴/K
Temperature of deflection under load 1.8 MPa	ISO 75	125	℃
Temperature of deflection under load 0.45 MPa	ISO 75	137	℃
Electrical	Standard	Value	Unit
Volume resistivity	IEC 62631	1E14	Ohm·m
Surface resistivity	IEC 62631	1E16	Ohm
Electrical strength, 1 mm	IEC 60243-1	34	kV/mm
Comparative tracking index CTI, solution A	IEC 60112	225
Comparative tracking index CTI M, solution B	IEC 60112	125M
Dielectrics strength, in oil, 3.2mm	IEC 60243-1	17	kV/mm
Relative permittivity,100 Hz	IEC 60250	3.1
Relative permittivity,1 MHz	IEC 60250	3.0
Dissipation factor, 100 Hz	IEC 60250	10⁻⁴
Dissipation factor, 1 MHz	IEC 60250	10⁻⁴
Electrolytic corrosion	IEC 60426	A1
Flame retardant	Standard	Value	Unit
UL recognized, UL94 V-0 Flame Class Rating	UL 94	3.0	mm
UL recognized, UL94 V-2 Flame Class Rating 2nd value	UL 94	1	mm
Glow wire flammability index (GWFI) 875℃, passes at	IEC 60695-2-12	0.75	mm
Glow wire flammability index (GWFI) 960℃, passes at	IEC 60695-2-12	1.5	mm
Glow wire flammability index (GWFI) 960℃, passes at	IEC 60695-2-12	3.0	mm
Glow wire test (GWIT) 875℃, passes at	IEC 60695-2-13	0.75	mm
Glow wire test (GWIT) 960℃, passes at	IEC 60695-2-13	1.5	mm
Glow wire test (GWIT) 960℃, passes at	IEC 60695-2-13	3.0	mm
Burning rate (US-FMVSS)	ISO 3795	≥1.0 mm
Flash ignition temperature	ASTM D1929	460	℃
Self ignition temperature	ASTM D1929	530	℃
Oxygen index, method A	ISO 4589	35	%
Optical	Standard	Value	Unit
Luminous transmittance (clear transparent materials), 1 mm	ISO 13468	89	%
Luminous transmittance (clear transparent materials), 2 mm	ISO 13468	89	%
Luminous transmittance (clear transparent materials), 3 mm	ISO 13468	88	%
Luminous transmittance (clear transparent materials), 4 mm	ISO 13468	87	%
Refractive index, procedure A	ISO 489	1.586

 Partners 

We have established long-term relationships with 80+ well-known  companies around the world

 Warehouse And Shipping 

20+ years' experience consultant with a supply chain of 1000+ plastic raw materials in China.

Quantity (tonnes)	1-100	100-300	>300
Lead time (days)	7-10	10-15	To be negotiated

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References and Notes

1. Covestro,"safety data sheet of covestro makrolon 6555 flame retardant", Covestro AG, 01/07/2026
2. Covestro,"Covestro Products sheet of Makrolon 6555 PC", Covestro AG, 01/07/2026