What was William L. McKnight's initial response toward masking tape?

I want to shut the mouth of my geek friend kindly tell the initial response of William L. McKnight toward masking tape.
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He did not like the idea and he said to his sand paper engineer to stop working on it. Source:
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Weak adhesive tape is actuallay a masking tape, it is easy to tear and used by wall painters for different purposes.
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