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Steps for Coating Metal with Polyurethane Emulsion
- 2025-11-19 17:29:31
- admin
The process of coating metal with polyurethane emulsion can be divided into the following steps: Surface Preparation: Before applying the polyurethane emulsion, the metal surface needs to be properly prepared. This typically includes cleaning the surface, removing oil, dust, and other impurities, and performing rust removal to ensure coating adhesion and durability. Rust removal can be done mechan...
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Basic Knowledge of Waterborne Coating Formulation, Part 3
- 2025-11-29 17:04:36
- admin
Film-Forming Aids Polymers that make up emulsions or dispersions typically have glass transition temperatures above room temperature. To ensure good integration of emulsion particles into a uniform paint film, film-forming aids must be used to lower the minimum film-forming temperature (MFFT). Film-forming aids are a class of small-molecule organic compounds that eventually escape and volatilize f...
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Tackifying Resins
- 2025-12-04 16:03:44
- admin
In many applications, acrylic adhesives do not require the addition of tackifying resins to improve pressure sensitivity, but in most cases, they are necessary: To increase initial tack and peel strength To improve adhesion to low surface energy materials Tackifying resins are commonly used in acrylic emulsion systems, such as paper labels and packaging tapes. They improve peel strength on difficu...