K-88 ADMIX improves the curing of cement, mortar, and cementitious materials. Bonding agent promotes adhesion. Mix with Structural Skin, Conpro Stucco, Foundation Coat, Plastermix, and mortar.

  • Promotes curing Reduces need to moist cure materials in conditions up to 85°F. Reduces shrinkage induced cracking.
  • Increases bond Promotes chemical adhesion to substrate.
  • Durability Increases compressive and tensile strengths. Increases freeze/thaw resistance.
  • Water resistance Increases density and improves resistance to water entry.
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Surface Preparation

  • K-88 Admix is an admixture. Refer to the specific product bulletin for material to be used.


  • Follow the instructions of the material to which K-88 Admix will be added.


  • Stir or shake container gently and pour into mix at the desired addition rate.


  • Structural Skin® 1 quart/50 lbs. bag for curing. 2 quarts/50 lbs. bag for Exterior Wall Systems.
  • Conpro Stucco 1 quart/50 lbs. bag.
  • Plastermix 1 quart/50 lbs. bag.
  • Field mix stucco 1 part K-88 Admix to 2 parts water.
  • Cement parge coat 1 part K-88 Admix to 2 parts water.
  • Mortar and concrete 1 part K-88 Admix to 2 parts water.


  • Follow the instructions of the Conproco product to which K-88 Admix is added.

Clean Up

  • Clean tools and equipment with water.


  • Refer to Application

Product Handling

  • Packaging Quart, 1, 5 and 55 gallon containers.
  • Shelf Life 18 months in unopened containers.
  • Storage Protect from freezing. Transport and store in cool, clean, dry conditions in unopened containers. High temperature will reduce shelf life.


  • Do not apply if temperature of substrate is below 45°F.
  • Do not apply if ambient temperature is below 45°F.
  • Do not re-temper mixes modified with K-88 Admix.

Health and Safety

  • Product is alkaline.
  • Avoid contact with skin and eyes.
  • Avoid breathing vapors.
  • 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.
  • If respiratory difficulty persists, contact a medical professional.


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

How to apply:

Refer to the K-88 Admix Technical Data to find specific recommended addition rates:

Physical state and appearance Milky liquid
Base Aqueous
Polymer 100% acrylic
Odor Ammoniacal
pH >8
Percent solids by weight 27%
Density of liquid coatings ASTM D1475 8.4 lbs./gal.
Results typical for 3/4 -3 inch mix 7 Days           14 Days 28 Days
Compressive strength ASTM C109
Design mix without K-88 Admix – psi  2725 3375 3725
Design mix with K-88 Admix – psi  3400 4150 4700
Percent increase – % 25 23 26
Tensile strength ASTM C307
Design mix without K-88 Admix – psi 95 360 360
Design mix with K-88 Admix – psi 385 390 400
Percent increase – % 30 8 11