If you meet EI eligibility requirements and have an acceptable business plan you may be considered.
SEA is for income support.
The money you receive is for your personal use, so you're not drawing money out of your business. To get money to buy equipment for your business, you'll want to look at a traditional lending institution like a chartered bank, trust company, or credit union. You may also consider borrowing against existing equity, or from a business development centre. You'll look at whether or not you can be competitive in the marketplace. You'll consider the best way to operate your business, as well as what kind of picture your cash flow forecast gives you.