HF-2282 / HF-2283 is a light yellow, low-viscosity modified cyclic curing agent capable of rapidly curing epoxy resin at room temperature or low temperature. When HF-2282 / HF-2283 is used for surface coating curing agent, the coating can be given good gloss, wear esistance and solvent resistance properties, especially suitable for floor surface coating, pipeline solvent resistance protection, etc.