FKM Precompound

Instruction

SF-451C is a fluoroelastomer precompound which include copolymer of hexafluoropropylene and vinylidene fluoride, curatives.

It is designed for compression molding product such as O-ring and Gasket.

Features of SF-451C are:

lÂ Â Â Â Â Â Â Â Â Â Excellent mold release

lÂ Â Â Â Â Â Â Â Â Â Excellent compression set resistance

lÂ Â Â Â Â Â Â Â Â Â Good mold flow

Recommended Processing Procedures

SF-451C can be compounded with internal mixers or two-roll mills with standard fillers and other ingredients that are used in typical fluoroelastomer formulations. All the dry ingredients should be blended before adding to the rubbery solid. During compounding, full cooling should be accompanied. After mixing, the compound should be cooled as quickly as possible.

Packing information

SF-451C is package with PE film in carton. The weight is 20kg net per carton.

Safety and handling

lÂ Â Â Â Â Â Â Â Â Â Store in well ventilated place

lÂ Â Â Â Â Â Â Â Â Â Smoking is forbidden Strictly in working areas

lÂ Â Â Â Â Â Â Â Â Â Avoid eye contact

lÂ Â Â Â Â Â Â Â Â Â Wash thoroughly any contacted skin and clothing After handling.

lÂ Â Â Â Â Â Â Â Â Â Further safety and handing guide, can follow the productâÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂs Material Safety Data Sheet or consult DowhonâÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂs people.

typical properties of Vulcanizate

CompoundÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PHRÂ Â Â Â Â Â Â

SF-451CÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 100Â Â Â Â Â Â Â Â

MT Black(N990)Â Â Â Â Â Â Â Â Â Â Â Â Â Â 30 Â Â Â Â Â Â Â Â Â

MgOÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3Â Â Â Â Â Â Â Â Â

Ca(OH)2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â

Carnauba WaxÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â

Rheological Properties

177?@ 6minÂ Arc 0.5

ML, lb-InÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.82Â Â Â Â Â Â Â Â Â

MH, lb-InÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 20.79Â Â Â Â Â Â Â Â

Ts2, minÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1.26Â Â Â Â Â Â Â Â Â