![]() ![]() And - as with most things in screen printing - the more you print and the more you experiment with different types of emulsions, the better you will get at determining which emulsions are right for different projects.įor quality stencils, having the right tools for the job doesn’t stop with good emulsion. By following the manufacturer’s recommendations, you can be sure you’re using a compatible emulsion that will provide you with a good print. In the end, you’ll want to choose the type of emulsion recommended by your ink manufacturer. Higher mesh count screens require a less solid emulsion, while emulsions that are too thin will not properly coat lower mesh count screens, resulting in pinholes or other flaws in the print. You’ll also need to consider the emulsion’s viscosity, or solid contents. In addition to looking at the type of screen print you’re creating, you might need to look at the water resistance of the emulsion. SBQ-based and dual-cure emulsions can be trickier to work with because of their faster dry times, but the more difficult emulsions can reward you with a more detailed print. Newer printers might tend toward diazo emulsions because they’re cheaper and more forgiving. When it comes time to choosing your emulsion type, there are many factors that can come into play, but you can create quality prints with any of the three types of emulsions. Find the Perfect Emulsion to Get the Job Done Right! Total Ink Solutions offers a variety of differentĮmulsions for your screen preparation needs. It creates a thicker stencil than SBQ-based emulsions, and it isn’t as costly. They require mixing and cure faster than diazo emulsions but not as quickly as pure SBQ-based emulsions. Dual-cure emulsions combine the properties of diazo and SBQ-based emulsions.SBQ-based emulsions have a shelf life of more than a year, and they tend to be the most expensive type of emulsion to purchase. The emulsion tends to create a thinner stencil, but multiple coats can be layered if a thicker stencil is required. The more delicate bonds created by SBQ-based emulsions make the emulsions a good choice for detailed work. They cure extremely quickly - within seconds - when exposed to UV light. SBQ-based emulsions come in one pot with no mixing required.Diazo emulsions are the cheapest screen printing emulsion option. Once mixed, diazo emulsions will last a few months on the shelf. The resulting stencil tends to be thicker, making diazo emulsions a poor choice for detailed prints or prints that require halftones. Diazo emulsions requiring longer exposure and can take 15 minutes or more to fully cure. Diazo emulsions require the manual mixing of the photosensitizer with the resins.Diazo is so-called because it contains benzene diazonium SBQ-based emulsions make use of Styryl Basolium Quaternary dual-cure emulsions contain both diazo and SBQ. In screen printing, there are three different types of emulsions, based on the photosensitizers used. When light hits the emulsion, the emulsion’s photosensitizers within create a strong bond with the emulsion’s resins, hardening the emulsion and making it hold fast to your screens. Just as plastisol ink cures when exposed to heat, emulsion cures when exposed to UV light. ![]() Screen printing emulsion works much like plastisol ink. Understanding the different types will help you choose the right screen printing emulsion to create a quality stencil for a quality job. Good screen printing results start with a good stencil, and the best stencils start with the right emulsion! ![]()
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