Flexfill 60 has been designed specifically for filling sawcut control joints and contraction joints in concrete floors. Flexfill 60 is a two component, low viscosity liquid that cures to a semi-rigid hard-rubber-like resiliency which supports joint edges to prevent edge deterioration and concrete spalling. Flexfill 60 joint filler is easy to install, bonds tightly to the sides of the concrete joint, prevents contaminant penetration and delivers high wear resistance and durability.

K-057 Flexfill 60 is a joint filler, not a joint sealant. A 100% solids epoxy, it has zero VOC's, is environmentally friendly and USDA approved.

FLEXFILL 60 FEATURES

• Easy to install
• Convenient 1:1 mix ratio allows mixing of a specific quantity required
• Low viscosity
• Mixes easily, penetrates fine cracks
• Pours easily and fills joint profile completely
• High adhesive strength
• Delivers tight bond to faces of joint
• Bonds tightly to concrete, asphalt, wood, steel, and other construction materials
• Uniform consistency with no measurable shrinkage
• High resistance to penetration of contaminants
• Flexfill 60 delivers a resilient hard-rubber-like support mass, supporting joint shoulders against the force of hard-wheeled vehicular traffic while allowing required flexibility in the concrete slab.
• Wear resistant, durable and resilient, it does not harden or become brittle with age.

PRODUCT DESCRIPTION AND CHARACTERISTICS

PACKAGING

K-057-5 (0.5 gallons) = 108 in3 = 24 linear ft. in 1/4" x 1-1/2" joint

K-057-21 (2 gallons) = 457 in3 = 101 linear ft. in 1/4" x 1-1/2" joint

APPLICATION INSTRUCTIONS

WHEN TO INSTALL K-057: K-057 should not be installed on "green" concrete. A minimum 30 day concrete cure is required. 90-120 days is ideal. The ideal time to install is when the area is at its long term, stable temperature.

JOINT OR CRACK APPLICATION: Any loose concrete, previous joint compound or other materials must be removed to leave a clean, sound joint. All dirt, oil, sealers or chemical residue must be removed. To achieve optimum performance the joint should be sawcut, and/or chipped to leave a clean, dry surface for bonding. Prepared joint depth should be at least (minimum) two (2) times the width. Wire brush joint sides to remove laitance. Bond breaker must be used. 1/4" layer of 30-60 mesh silica sand in bottom of joint is recommended. The bond breaker is designed to prevent 3-sided adhesion of the epoxy. Adhesion to the joint walls is the only adhesion desired. DO NOT USE A BACKER ROD. A backer rod does not produce a stable, long term load transfer.

APPLICATION: Do not rapidly change the temperature of the air/concrete before installing K-057. Keep the temperature constant, same as long term temperature. Floor temperature must be between 60° F - 90° F during application for complete cure. Temperatures below 50° F will inhibit the cure resulting in a sticky surface. The liquid material should be stored at 60° - 90° F prior to installation.

MIXING: Mix the Resin (Part A) and the Hardener (Part B) for 2-3 minutes with a slow speed (500 rpm or less) drill and Jiffy Mixer (mixing paddle). Pour the material into the joint. If a flush joint is desired slightly overfill the joint and let cure overnight, then use a floor scraper or knife edge to cut the material flush with the concrete. If the joint material is to be topcoated no cutting is necessary.

If you need less than a full kit, do not attempt to "eyeball" the mixture. Accurately weigh or measure the resin and hardener following the mixing ratios under "PRODUCT DESCRIPTION AND CHARACTERISTICS".

Flexfill 60 has a worklife of one hour at 72° F, and can be applied as thickly as needed in one coat. If it is necessary to bond Flexfill 60 to itself, abrade the old material before pouring new material.

CLEAN-UP: Flexfill 60, before it has hardened, can be removed from tools with Copps Enviro Kleen solvent or isopropyl alcohol.

SAFETY: Flexfill 60 is an epoxy resin system. Please refer to Material Safety Data Sheets before using this product. Do not weld on or near epoxy; hazardous fumes will be released.

EXPLANATION OF PRODUCT CHARACTERISTICS AND PHYSICAL PROPERTIES

Important product characteristics are listed on page 2 of this technical bulletin. Several key characteristics include tensile strength, percentage tensile elongation and Shore A hardness.

• These characteristics relate to Flexfill 60 after it has completely cured.
• In simple terms: Tensile strength relates to the capacity of this material to hold together when stretched.

Percentage tensile elongation is the length the material can be stretched before failure.

Shore A hardness relates to a standard for hardness - softness so that different materials are measured against the same reference point.

Flexfill 60 has been designed to function as a joint filler. It must stretch or give to allow for expansion or contraction within the concrete slab. At the same time it must deliver adequate support to joint shoulders receiving the force of hard wheel traffic carrying heavy loads. Lastly it must bond to joint sides to provide a seal to prevent contaminant entry and its surface texture must deliver sufficient wear capacity. Extensive tests and use of Flexfill 60 demonstrate these capacities.

Copps Industries is proud to deliver to you a product that will perform and meet your expectations for a good joint filler.

JOINT FILLER ESTIMATING CHART (LINEAL FEET PER GALLON)

Move across "Joint Width" row to the width of your joint, then down its column to match the corresponding depth of your joint in the "Joint Depth" column. The number of lineal feet filled with one gallon of material is specified at the intersection.

WARRANTY AND DISCLAIMER

Copps Industries, Inc. gives no warranty, express or implied, and all products are sold upon condition that purchasers will make their own tests to determine the quality and suitability of the product. Copps Industries, Inc. shall be in no way responsible for the proper use and service of the product. The information given in this publication is considered to be accurate and reliable and is provided as a service only. Physical properties shown are typical. Actual properties are dependent on curing conditions and degree of cure. Any information or suggestions given are without warranty of any kind and purchasers are solely responsible for any loss arising from the use of such information or suggestions. No information or suggestions given by us shall be deemed to be a recommendation to use any product in conflict with any existing patent rights.

TB#4057B (03/17/98)