NY -- Standard & Poor's CreditWire 10/24/95 -- Standard & Poor's raises its ratings on Guardian Industries Corp.'s senior debt to single-`A'-plus from single-`A', reflecting the prospect of stronger credit protection measures resulting from the adoption of more conservative financial policies. The rating outlook is stable. Additionally, Standard & Poor's affirms its `A-1' commercial paper rating on the company. Ratings incorporate a leading position in the large, concentrated worldwide flat glass market and a healthy cyclical upswing in earnings. An extension of the company's competitive position and solid operating margins through a cycle is supported by low-cost operations, ongoing capacity additions (mostly overseas) and increased focus on value-added fabricated products. Sales are heavily dependent on new construction and automotive markets