Brick sealer solvent for in home use?

Never use a solvent sealer inside a building or home. The high VOC's (volatile organic compounds) they offgass can be toxic to breath for many months after applying. The safe alternative are water-based sealers. Water-based sealers (water being the liquid carrier for the solid content) come in a variety of types: siliconate, silicate, acrylic, urethane, polyurethane, silicone, silane, siloxane and polyester (see related link below for more info on this product). Some of these are penetrating sealers and others are topical.