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Integral Color Rich, long-lasting fade -resistant color: Often used to produce a backdrop for contrasting accent or antiquing colors. This layering of color is what enables them to closely replicate the variegated, multi -tonal appearance of natural stone. Advantages: • Entire batch colored all the way through (like food coloring to cake. icing). Even if surface abrasion occurs, the color will not wear away. • Pigments are chemically stable,.won't fade overtime from exposure to weather or UV light. • Colors available in powdered, granular, and liquid forms. • Palette consists primarily of soft earth tones, that integrate well with most landscape architectural elements. . Limitations: _ • Hues are subtle and less intense than what you can achieve with. color hardener. • Cost: coloring entire batch so you may pay 10% to 30% more for integrally colored concrete than for plain concrete. Dry -shake Color Hardeners Comes as powder that is broadcast onto freshly placed concrete and then worked into the surface: Unlike integral pigments which color the entire concrete. matrix; hardeners color only the top surface layer. They appear more intense because the color is concentrated at the surface. Advantages: • Wider array of hues than integral colors and combining hardeners permits greater variability in tones. • Densify the concrete surface because hardeners contain hard mineral aggregates and Portland cement.. • Result in a surface that's stronger, more wear resistant, and less permeable to moisture and deicing chemicals. • Improves strength and density of concrete, so they are a great choice for exterior slabs exposed to freeze -thaw cycles and deicing salts, and for interior floors exposed to heavy foot traffic and abrasion. Limitations: • Due .to shake -on application; dry shakes are generally limited to use on horizontal surfaces. • Messy to apply because some material goes airborne during broadcasting. Airborne powder can be harmful to breathe. Need to protect adjacent surfaces as well.