Polycarbonate adhesive shear strength

Methylene chloride when used alone has an extremely fast evaporation rate. This solvent is recommended for most temperate climate zones and small areas. A solution of 1-5% of polycarbonate in methylene chloride can be used in extreme cases where perfectly mated bonding areas are impossible to obtain. A mixture of methylene chloride with a maximum of 40% ethylene dichloride may be used, where it is difficult to join parts quickly enough to prevent complete evaporation of methylene chloride. The evaporative rate of methylene chloride is 6.7 times faster than that of ethylene dichloride. Bonds made with the mixture have strengths of 62.1-69.0 MPa. Tensile-shear strengths of 31.0-44.8 MPa have been obtained by General Electric after 48 hours of setting at room temperature for both methylene chloride and ethylene chloride solvent bonds. This is superior to conventional adhesive-bond tensile-shear strengths of 2.41-20.0... 

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