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Is Surface Preparation Needed When Applying a Light-Curable Material?

Q: How should a substrate be prepared or treated prior to applying a light-curable material?

A: Cleaning substrates prior to the application of a light-curable material is almost always a best practice. Removing contaminants allows for the best wetting of the application area and increases adhesion to substrates. When deciding on a cleaning process, it is important to consider both the contaminant and the substrate(s). Particulates can be removed with high-pressure air or brushing, while chemical contaminants require aqueous (water) or solvent-based cleaners. The aqueous or solvent-based cleaner should be selected such that it removes the contaminant without harming the substrate.

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