Unsecured Business Loans

Does anyone know how to get an unsecured line of credit without a personal guarantee?

I went to one of those seminar where they boast that you can get business credit, a duns number and not affect your personal credit. I told the guru that since I formed my corporation I get tons and tons of business credit card offers using my EIN instead of my SS# so I am personally protected - he said NOT. He said once you sign those credit card application, even as a principal of an LLC, you are personally liable.

Has anyone taken a business credit guru’s class?
Thanks :smiley: