A dynamic mixer to mix at least one curing agent and at least one resin system in the proportion of at least 2.5:100 to obtain a homogenous curative composition, wherein said mixer comprises a stirring chamber (5) provided with a motorised stirrer (4) suspended from the top of the chamber (5) and a siphon (6) at the bottom; at least one inlet hose (h1) connected to the stirring chamber at one end and pumping means (p1) at other end; the pumping means (p1) pump at least one curing system to the stirring chamber through the at least one inlet hose (h1); at least one inlet hose (h2) connected to the stirring chamber at one end and pumping means (p2) at other end; the pumping means (p2) pump at least one resin system to the stirring chamber through the at least one inlet hose (h2); and frame to setup the dynamic mixer. The proportion of diameter (A) of the stirring chamber (5); length (B) of the stirring chamber (5) from a top closure to a bottom opening of the chamber (5); and the length (C) from the bottom opening of the chamber (5) and a top of the siphon (6) may vary only in the ratio of 1: (2.6-3.0): (1.1-1.3) i.e. [(A):(B):(C)] to obtain the homogenous curative composition comprising 2.5 phr curing system per resin system.
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