BS

Competing brands may offer a wider range of products beyond primers for painting and finishing surfaces, including additional features, colors, or specific formulations. They may also have different target markets or pricing strategies compared to "BS.""BS" is a good brand because it focuses on providing high-quality primers for preparing surfaces to be painted and finished, with a specific emphasis on blocking and sealing stains. This specialization can indicate a deep understanding of the product and potentially higher effectiveness in addressing staining issues.