ChemPatch™ VO1

Other characteristics

Brand

ChemPatch

Features

Acid Resistant, Corrosion Resistant, Easy To Finish, Fast Setting, Freeze/Thaw Stability, Good Bonding Strength, Good Shrinkage Resistance, High Density, High Durability, High Strength, Light Weight, Polymer Modified

Product Type

Mortar

Application Area

Masonry

Usage

Rapid structural and cosmetic repairs to any vertical or overhead concrete; Fills holes, spalls, cracks or honeycombs on vertical or horizontal concrete; Restore disintegrated surfaces of old concrete and masonry, cornices, lintels, sills, handrails

Markets

Building & Construction

Storage

Store between 40° and 90°F (4° and 32°C) in unopened bags on pallets in a dry area. Shelf life of properly stored material is one year from date of manufacture.

Advantages

Light weight for high build in vertical or overhead use; Integral fibers for added strength; Includes corrosion inhibitor to protect steel reinforcement; Non-shrink to provide structural repair of holes or cracks; Excellent bond to existing concrete or masonry; Dense for chloride ion repellency and durability; Latex modification provides enhanced resistance to acids compared to standard concrete patching products; Rapid setting for minimal turnaround time; Dries to a light concrete gray to blend better with surrounding concrete; Contains no silica fume, gypsum, or metallic particles; Easy to finish; Versatile consistency for horizontal, vertical, and overhead repairs; Does not require separate bonding agent for most applications

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Direction

Surface Preparation: Area to be repaired must be free of all dust, dirt, loose concrete, oil, grease, old asphalt, curing and sealing compounds, form release agents, efflorescence, or other contaminants that might interfere with adequate bond. Square cut perimeter of holes or cracks to a minimum width of 3/4 inch (1.9 cm) and depth of 1 inch (2.5 cm), undercutting to sound concrete when possible. Do not V cut cracks. Exposed reinforcing steel (NACE 3 Standard SSPC SP6) must be cleaned to a bright metal removing all rust or signs of oxidation. Chip out concrete behind or un-der rebar to a depth of 3/4" (1.9 cm). Coat any exposed steel with Polyweld EPXCI or other corrosion inhibiting bonding agent as specified and allow to dry. Immediately prior to placement of ChemPatch VO1 remove any re-maining dust or dirt with vacuum or oil free compressed air. Saturate the prepared area with clean, potable water to the point of rejection. Remove any puddles or standing water immediately before placing mortar so that concrete is in a Saturated Surface Dry (SSD) condition. Bonding: When undercutting or squaring the edges of the patch is impractical or when application must be made in hot or dry conditions, use Cretelox as the mixing liquid for the slurry bond coat. Do not allow slurry bond coat to dry out before application of the mortar. Use 1 part Cretelox to 2 parts of water as the mixing liquid for the mortar con-sistency ChemPatch VO1. Refer to Cretelox product data sheet. Mixing: ChemPatch VO1 sets rapidly. Mix only an amount that can be placed and leveled within 15 to 20 minutes. Con-dition the dry mortar and clean potable mix water to 65° to 75°F (18° to 24°C). Mix for approximately 1 to 2 minutes to achieve a lump free consistency. Do not over mix. Do not add additional water. Vertical / Overhead: Adjust consis-tency by using less water to make a stiffer mix. Over wa-tering causes excessive shrinkage and lower strengths. Do not add additional water or re-temper after initial mixing procedure. Do not add accelerating or bonding admixtures. When mixing one bag use a variable speed drill with a jiffler paddle. For less than full bag requirements, use a drill with a jiffler paddle to mix a proportionate amount of the dry ChemPatch VO1 powder and mix water. Scrub a mor-tar bond coat into the repair area being sure to fill all voids and pores. Do not allow bond coat to dry before place-ment of mortar.

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