Heat stability

In order to prevent the negative impact of temperature during manufacturing and application of ethylene copolymer based hot-melts it is absolutely necessary to used an appropriate antioxidant in hot-melt formulations. Ethylene copolymer based hot-melts present a high heat stability which can be improved by using hydrogenated tackifiers and stable plasticizers or oils. When very long heat stability is needed with limited fumes or odors, ethylene acrylate copolymers can be an interesting alternative as shown figure below: Product A and B have excellent thermal stability, far better than EVA. They allows the hot melt to remain for long residence times in the melt tank without viscosity variation.