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The Duncan Viscosity Cup – New Style is a specialist tool for testing and measuring the flow of glazes and ceramic finishes. If you work with glazes in your crafting practice, this cup helps you achieve consistent results by checking viscosity before application.
Use this cup to test your glaze mixture by pouring it in and timing how long it takes to run through. For colourobia clear glaze, the ideal flow time is 11–13 seconds, which tells you whether your glaze has the right consistency for your project. This simple method takes the guesswork out of glaze preparation and helps you replicate successful results batch after batch.
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