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Dual cures utilize some of the straight diazo and some of the photopolymer properties. This means a photo-sensitive additive must be mixed into the emulsion before it can be applied to screens for exposure. We won’t get into diazo emulsion here as manufacturers are phasing out this type of product.ĭual Cure emulsion is a (diazo) direct emulsion that is not pre-sensitized. There are two basic categories of direct emulsion dual cure and photopolymers. It can be applied to both the ink and substrate sides of the mesh in multiple layers to achieve a stencil micron specific to the substrate the screen will be used to print.
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