| 摘要 |
A composition for repairing concrete or terrazzo surfacings comprises at least one liquid epoxy resin and at least one mercaptan-terminated liquid polysulphide polymer in the weight ratio range 1 : 1 to 2.5 : 1, and 8 to 15% (of the total weight of epoxy resin and polysulphide polymer) of a cure accelerator. Alternatively, the composition may comprise at least one liquid epoxy resin and at least one diamino fatty acid amide in the weight ratio range 2 : 1 to 1 : 1.5. The composition may contain up to 5% by weight of at least one filler and up to 15% by weight of at least one solvent. In several examples, the following constituents are specified; a fast cure agent, tri-(dimethyl-aminomethyl) phenol and a slow cure agent, dimethyl-aminomethyl phenol associated with the liquid mercaptan-terminated polysulphide polymer to form part A of the composition, and a liquid epoxy resin having an epoxide equivalency of 185-195 dissolved in toluene to form part B; a liquid diamino fatty acid amide to form part A and a liquid epoxy resin (epoxide equivalency 179-194) modified with butyl glycidyl ether mixed with Tysox resin A to form part B. |
