NEW PRODUCT OFFERING: H2OLD BASE GEL Ideal Shield is excited to be offering a new base gel installation option called H2Old with our sign base products. H2Old base gel is a super absorbent polymer. One 16 ounce bag can replace 400 pounds of sand by simply adding water to the powder substance that instantly turns into gel. Once this base gel’s cross-linked polyacrylate polymer absorbs water, it creates a firm and stable gel that will last up to 7 years. What If you want to remove the gel? Simply add salt to the gel and it dissolves instantly.