Inactive thinner The molecules of this thinner does not contain active groups, and most of them are inert solvents, such as ethanol, acetone, toluene,etc. It does not participate in the reaction during the dilution process, it is only blended in the resin and serves the purpose of reducing the viscosity.

    In addition to the dilution effect, it has an impact on mechanical properties, heat distortion temperature, medium resistance and aging damage. The volatilization speed of the solvent should be considered. If the volatilization speed is too fast, the surface of the adhesive layer is easy to form a film. Prevent the escape of solvent inside the adhesive layer. Cause bubbles in the adhesive layer; If the volatilization rate is too slow, there will be solvent left in the adhesive layer, which will affect the bonding strength.

   Usually, several solvents with different boiling points are mixed to adjust the volatilization rate. It is mostly used in rubber adhesives, phenolic adhesives, polyester adhesives and epoxy adhesives.