In a method and composition for dynamically balancing rotors and the like, an improved epoxy resin balancing composition is applied to a rotor and the rotor is dynamically tested before the resin is cured. The resin composition includes fibrous inorganic material and a reaction polyamide hardening agent or catalyst. The composition has a specific gravity of at least 3.
Dynamic balancing compositions are described which include an epoxy resin component and a curing component. The curing component contains at least one of a polyamide agent or polyamine agent. The balancing compositions drastically reduce the time required for balancing because, immediately after their application, they can be rotated and balanced in the uncured state. The balancing compositions also have an increased pot life and can be colored with pigment to approximate the color of copper windings.
Concrete Surface Treating Material And Method Of Treating Concrete Surfaces
A concrete surface is treated with a low viscosity sealant solution comprising an epoxy resin and an organic elastomeric polysulfide curing component which solution penetrates deeply into the surface and fills voids therein.
Dynamic balancing compositions are described which include an epoxy resin component and a curing component. The curing component contains at least one of a polyamide agent or polyamine agent. The balancing compositions drastically reduce the time required for balancing because, immediately after their application, they can be rotated and balanced in the uncured state. The balancing compositions also have an increased pot life and can be colored with pigment to approximate the color of copper windings.
A concrete surface is treated with a low viscosity solution comprising an epoxy resin and an organic elastomeric polysulfide resin which penetrates deeply into the surface and fills voids therein.