Fluoroelastomer FKM Low Temperature Resistance for Rubber Ring and Rubber Seal

• Raw Material: Synthetic Rubber
• Material: Fluoroelastomer
• Appearance: White or Light-Yellow Film
• Form: The Massive Raw Rubber
• Features: Low-Middle Mooney
• Application: Injection Molding O-Rings, Gaskets, Seals, Sheets
• Model NO.: L228/L728/L228A/L728A
• Forms: White or Light-Yellow Flake
• Fluorine Content: 66
• Package: 5kg/Bag, 800kg/Pallet
• Transport Package: 5kg/Bag
• Trademark: Flurine
• Origin: China
• HS Code: 3904690000
• Production Capacity: 3000tons/Year

Product Description

 

Product Description

 

Flurine® L228/L728/L228A/L728A

Flurine® L series is a low-middle Mooney bisphenol-vulcanized fluoroelastomer with a fluorine content of 66%. It is a copolymer of vinylidene fluoride (VF2), hexafluoropropylene (HFP) and perfluoroalkyl vinyl ether (PMVE). It is commonly used in automotive, hydraulic, electrical and chemical industries. It has excellent heat and chemical resistance.The outstanding performance is low-temperature elasticity, which are particularly suitable for O-ring seals for fuel injectors.
 

 

Data Sheet

 

General
Features	Low temperature resistance
Uses	Shaft seal, O-ring, fuel pipe. Extrusion molding
Forms	White or light-yellow flake
Items	Typical Value					Test Method
	L228	L728	L228A		L728A
Physical Properties
Fluorine Content(mass%)	65		65
Density(g/cc)	1.78~1.82		1.78~1.82			ASTM D297
Mooney Viscosity	20~49	50~89	20~49		50~89	ASTM D1646 ML 1+10 at 121°C
Water content(%)	0.15		0.15			ASTM D 5668
Vulcanization Properties
T10(s)	<130		<160			ASTM D5289
T90(s)	<240		<300			ASTM D5289
Mechanical Properties
Tensile strength(MPa)	13		13			ASTM D412 Method A
100% Modulus	6		6			ASTM D412 Method A
Elongation at Break(%)	180		180			ASTM D412 Method A
Tearing Strength(KN/m)	15		15			ASTM D624
Hardness, Shore A	75		75			ASTM D2240, Type A
Compression Set	16		16			ASTM D395, Test B 70 hours at 200ºC
Thermal Properties
Low temperature retraction, TR10(ºC)	-19		-21			GB/T 7758
Brittleness Temperature(ºC)	-27		-34			GB/T 15256
Chemical resistance Properties
Resistance to liquids						Methanol,23ºC×70h
Tensile strength change rate(%)	-10		-10			ASTM D412 Method A
Elongation at Break change rate(%)	-9		-9			ASTM D412 Method A
100%Elongation change rate(%)	-12		-12			ASTM D412 Method A
Hardness change, Shore A	-1		-1			ASTM D2240, Type A
Volume change rate(%)	+2		+2
Formulation				Curing condition
Polymer            100      MT carbon black,N990   30 Calcium hydroxide    6        Magnesium oxide         3 Fluorocure-5#        2.5				Press			Oven
				10min at 177°C,0.5°			24h at 230°C

Packing & Storage

• Process safety instructions

1. Store and use all fluoroelastomers only in a well-ventilated area.
2. Do not smoke in areas contaminated with dust from fluoroelastomers.
3. Avoid eye contact. After handling fluoroelastomers wash any skin that came in contact with the product with soap and water.
4. Potential hazards, including evolution of toxic vapors, exist during compounding or processing under high temperatures.
5. Before processing the fluoroelastomers, read and consult the MSDS, and follow all label directions and operation cautions.

• Packaging and storage

FKM is packed in a plastic bag and then be put into a PVC bag with the net weight 25KGS. It must be stored in clean, cool, dry place.It must be stored in a clean, cool, and dry place. The storage life is one year from the date of production. It must be re-inspected if over one year and only can use if qualified.
It is transported as non-dangerous chemicals. Avoid excessive vibration and far away from pollution, sunshine and water during the transport.

 

Product Applications

 

Company Profile

 

FLURINE is a technological enterprise established in 2007 that integrates R&D, production and sales of PVDF and FKM raw materials.

We have a first-class core technology research and development team. After more than ten years of painstaking research, it has continuously expanded its product application fields, covering lithium batteries, films, cables, chemical materials and other industries.

We owns a multi-channel, multi-level R&D team of new materials, adhere to the combination of research and development and the introduction of advanced technology at home and abroad. We upgrade our products through technological innovation and change the existing product mix to meet the widest range of market needs.

Adhering to the people-oriented business philosophy, we also pay attention to the harmonious coexistence between man and nature, and are committed to creating a win-win world between man and nature. 

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