According to the statistics of key enterprises of the China Bearing Industry Association, in 2011, the country’s bearing industry exported 4.9 billion sets of bearings, amounting to US$4.5 billion, an increase of 18.2% and 36.6% year-on-year respectively; and 1.88 billion sets of imported bearings, amounting to US$4.17 billion. The year-on-year increase of 4.6% and 9.4% respectively, the industry-wide trade surplus of US$ 330 million, and the two-year deficit in import and export since 2009.

Catalyst

Hardeners, also called hardeners, are substances or mixtures that enhance or control curing reactions. Curing agent is an essential additive. Whether used as adhesive, coating or castable, curing agent should be added, otherwise Epoxy Resin can not be cured. Resin curing is a process of irreversible change of thermosetting resin through condensation, closed-loop, addition or catalysis and other chemical reactions. Curing is accomplished by adding curing (crosslinking) agent. The kinds of curing agent have great influence on the mechanical properties, heat resistance, water resistance, corrosion resistance and so on.

Curing Agent,Epoxy Curing Agent,Amine Curing Agent,Sodium Silicate Curing Agent

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