Q: Why would I choose a 3/16″ notch size squeegee for coating or resin application?
A: A 3/16″ notch size is suited for moderate-thickness coatings, often achieving around 15 to 20 mils wet film thickness and approximately 80–100 sq ft per gallon coverage under typical conditions.
Q: How does the EPDM rubber blade in the squeegee affect application performance?
A: EPDM rubber resists solvents and remains dimensionally stable under exposure, helping maintain consistent ridge formation across the substrate and reducing wear compared to softer rubbers when applying coatings.
Q: What should I monitor to know when the notches are worn and need replacement?
A: When the ribs or teeth begin to round, the deposited ridge height falls off, or coverage per gallon increases, those are indications to replace the squeegee blade to maintain application accuracy.
Q: Are there surface preparation or technique considerations when using a notched squeegee like this?
A: Yes. The substrate must be clean and free of debris or cured material layers, you should maintain a consistent angle and pressure during application, and back-rolling or flattening may be required to eliminate trapped air or high points for uniform results.