A compound is prepared, suitable for forming fluoroelastomers, having the
unique features of a low glass transition temperature and desirable
physical properties. The compound generally comprises an elastomeric
copolymer, a curable component, and at least one mineral filler. The
elastomeric copolymer includes interpolymerized monomeric units derived
from vinylidene fluoride. Upon vulcanization the resulting elastomeric
compound has desirable physical characteristics as indicated by the
tensile strength, elongation and the retraction at lower temperatures
(TR-10).