Add Mix-21

ADD MIX-21 is a specially formulated combination of polymers and modifiers designed to enhance the performance properties of Portland cement based mixes. Add Mix-21 is water-based and ready to use.
When used as an admixture, Add Mix-21 forms a plastic matrix which inhibits water evaporation thus improving cement hydration, resulting in higher compressive strengths.
Add Mix-21 also increases tensile and flexural strengths as well as the adhesive bond of cement based mixes
when applied over new or old masonry and concrete surfaces.
When applied as a surface primer just prior to application, Add Mix-21 provides a more workable surface and a
superior bond between the properly prepared substrate and the newly placed material.

USES
* An ideal admixture to use in concrete, repair mortars, thin overlays, stucco, pointing mortars and bedding mortars for tile, flagstone and brick.
• Slurries for anti-rust sealing and cold joint bonding.
• Tank, pipe and pool linings.
• Treads and landings on steel stairs.
• Terrazzo.

ADVANTAGES
• Increases compressive, tensile and flexural strengths while also improving the adhesive bond to masonry, concrete, brick, block, stone, tile and CDX plywood (interior use only).
• Improves resistance to chipping and cracking.
• Reduces shrinkage.
• Improves abrasion and impact resistance.
• Does not require damp curing.
• Protects against repeated freeze thaw cycles.
• Resists staining and discoloration.
• Improves water resistance.
• May be totally submerged after curing.
• UV stable, will not yellow.

MIXING
Before using, stir Add Mix-21 well or turn container over twice, do not shake.
When used as an admixture, combine the Add Mix-21 and the appropriate amount of clean water in a clean container. Add the dry product and mix thoroughly to a tight mortar like consistency. Avoid over mixing as this will entrain air thus reducing compressive and adhesive strengths.