Product category:
Materials and components
News Release from: Sabic Innovative Plastics | Subject: FSL 7586/40 TP3854
Edited by the Engineeringtalk Editorial
Team on 31 May 2005
Silicone elastomer aims for life under
the bonnet
A new liquid silicone rubber grade combines improved oil and fuel resistance, self-lubricating performance and excellent processing properties.
With the commercial launch of FSL 7586/40 TP3854, GE Advanced Materials is introducing a new liquid silicone rubber (LSR) grade that combines improved oil and fuel resistance, self-lubricating performance and excellent processing properties This fast-curing silicone elastomer may be used for gasketting and sealing applications, such as those found in under-the-bonnet automotive applications
This article was originally published on Engineeringtalk on 26 Feb 2004 at 8.00am (UK)
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GE's innovative formulation of its new FSL 7586/40 TP3854 grade incorporates tailored fluorine structures that enable it to help deliver processing performance similar to nonfluorinated LSRs, but with greatly enhanced chemical resistance.
The properties of this material may make it suitable for use in applications that require occasional contact with automotive fuels or long-term contact with most automotive oils like connector gaskets and parts in air-intake systems.
"FSL 7586/40 TP3854 LSR offers low compression set and low swelling, helping it to provide excellent long-term sealing", said Heinz Mueller, Industry Manager Automotive Elastomers, GE Advanced Materials.
"Also, its much lower volume swell makes this liquid silicone rubber product a versatile alternative to conventional, nonfluorinated grades".
This new grade can be used in liquid injection-moulding processes.
The material enables high-performance elastomeric parts with self-lubricating properties.
Its ability to self-lubricate derives from a fluid that exudes from the cured rubber over an extended period, ranging from a few hours to one day.
The practical effect is that FSL 7586/40 TP3854 offers reduced insertion forces for complicated parts.
Available as a translucent two-component silicone rubber, FSL 7586/40 TP3854 also offers colourability for colour-coded parts.
Its high temperature stability translates into durable physical properties, potentially allowing extended performance in seals and gaskets.
In addition, this new grade offers low temperature flexibility - down to -50C - ensuring excellent sealing, even at the lower limit of automotive requirements.
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