Plastermix

Performance Characteristics

• Long term protection Density and thickness provide resistance to carbonation.
• Enhanced aesthetics Significantly improves the natural appearance of concrete, filling voids, sealing pores and adding subtle, uniform texture.
• Improves performance of supplemental coatings Fills voids and pores that coatings don’t, providing uniform, monolithic base for protective coatings, such as Conpro Lastic, Super Color Stain and Color Coat.
• Anti-carbonation system Combined with Conpro Lastic provides protection from carbonation, chlorides and other environmental pollutants.
• Economical High production, easy to apply by spray, trowel or sponge float.

Surface Preparation

• Remove loose and deteriorated material, laitance, dirt, dust, oil and any surface contaminants that will inhibit proper bond.
• Repair spalled areas, static cracks and voids with Conpro Set.
• Substrate should have open-pored and textured surface.
• For best results grind or abrasive blast (CSP 3). Refer to ICRI Surface Preparation Guide 03732 for information about Concrete Surface Preparation (CSP).
• Apply Conpro Start where a consolidant is of benefit.
• Saturate substrate with clean water, (saturated surface dry/SSD). Wall should be wet when Plastermix is applied.

Priming

• No priming is required under normal circumstances.

Mixing

• Mechanically mix using a low speed drill (400 – 600 rpm) and mixing paddle or mortar mixer.
• Pour 3-3/4 quarts of potable water into a clean mixing vessel and slowly add all of the powder.
• Add 1 quart of K-88 Admix (replacing 1 quart of water) per bag of material to increase adhesion and aid in curing, when the substrate is very dense and/or when rapid evaporation will occur due to high wind and high temperature.
• The proper mix ratio is 4½ parts powder to 1 part water to ¼ parts K-88 Admix.
• Mix continuously for 3 minutes to a uniform, lump-free consistency.
• Add up to 1 pint of additional water if needed.
• Allow to “breathe” for 1 minute and remix for 1 minute. This will improve workability and open time.
• Do not over mix, as this will entrain excess air.

Application

• At the time of application, surfaces should be saturated surface dry (SSD) but hold no standing water.
• Bagging – mix 1 part K-88 Admix with 3 parts water to a slurry consistency. Apply with a sponge float to fill voids and bug holes.
• Texture coat – apply with a trowel. Allow material to take up to thumb-print hard. Apply second application with a trowel and finish with a sponge float.
• Do not exceed 1/16 inch total thickness.

Curing

• Keep damp with a fine mist of water.
• Protect from direct sunlight, wind, rain and frost during curing period.

Clean Up

• Clean tools and equipment with water immediately after use.
• Cured material must be removed mechanically.

Coverage/Yield

• 100 ft.²/50 lbs.@1/16 inch.

Product Handling

• 50 lbs. paper bags.

• 12 months when properly stored.

• Transport and store in cool, clean, dry conditions in unopened containers.
• High temperature or high humidity will reduce shelf life.

Limitations

• Do not apply unless substrate and ambient temperature can be maintained at a minimum of 40°F for 24 hours. Refer to ACI Cold Weather Application Guidelines.
• Cold mixing water and low temperature will retard set. Hot water and high temperature will accelerate set.
• Protect application from precipitation and high wind for at least 24 hours.
• Do not add more water than specified.
• Avoid overworking material during placement.

Health and Safety

• Product is alkaline.
• Do not ingest.
• Avoid breathing dust.
• Avoid contact with skin and eyes.
• Refer to Safety Data Sheet (SDS) for additional information.

First Aid

• In case of skin contact, wash thoroughly with soap and water.
• For eye contact, flush immediately with a high volume of water for at least 15 minutes and contact a medical professional.
• For respiratory problems, remove person to fresh air.

Disposal

• Dispose of material in accordance with local, state and federal regulations.