DYHARD 100S is a latent hardener & dicyandiamide-based curing agent for thermosetting epoxy resin systems used in the composite and electrical industry. It possesses low shrinkage & toxicity and no vapor pressure. It offers extraordinary long latency and cost effective dosage. This additive is not corrosive, hygroscopic and skin irritant. It provides highly cross-linked networks. It is ideal for prepregs, towpreg, laminates and casting systems.