FIELD: chemistry.
SUBSTANCE: curing composition can be used as sealant, particularly in case of double glazing, in planes, civil engineering and architectural structures. The curing sealant composition contains from 1 to 20 weight parts of tert-peroxybenzoate and from 0.005 to 10 weight parts of redox reaction initiator containing at least one metal selected from copper, iron, lead, potassium, manganese, indium, nickel and cobalt, its ions and its any compounds to 100 weight parts of polysulphide polymer having viscosity from 0.5 to 50 Pa·s at 25°C.
EFFECT: increase of the curing rate, improvement of the adhesion strength and life cycle; the cured material from the composition thereof possesses the good water stability ie it does not swells up and does not lose its strength even after long immersing to hot water.
14 cl, 10 tbl, 42 ex
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