• ADHESION TO DAMP CONCRETE
• 100%SOLIDS
• FAST SETTING
• STRENGTHENS POROUS SUBSTRATES
• EASY MIXING AND APPLICATION

Copps K-040 Floorcoat Primer is a 100% solids epoxy primer used for restoring concrete floors and new epoxy toppings.

K-040 ensures positive adhesion between epoxy topcoats and concrete or old to new concrete applications. K-040's unique chemistry permits rapid displacement of substrate moisture hence it can be applied to damp surfaces. K-040 SHOULD NOT BE APPLIED OVER STANDING WATER.

TYPICAL CHARACTERISTICS

MIXING: K-040 is a two component system. Both components (liquids A and B) should be at 70 ° F to 90 ° F prior to mixing. Pour the hardener (B side) into the resin (A side) and blend thoroughly using a mixing paddle and slow speed hand drill for 3-5 minutes. Mix at slow speeds to avoid air entrainment. Do not mix more material than can be used within the stated working time. Remember - you will have less working time at higher temperatures.

APPLICATION: Copps K-040 can be applied by brush or roller (short nap). When the primer has "tacked up" in approximately 2 hours, apply the epoxy topcoats. Copps epoxy topcoat can be applied in as little as 2.5 hours. Thinning of primer is not recommended. Do not apply to concrete colder than 50 ° F as insufficient curing may result.

HUMIDITY/DEW POINT: Relative humidity and dew point must be known before application to avoid adhesion failures. The dew point is used to predict the substrate temperature at which air begins to condense, in the form of water, on the substrate. Never apply a coating unless the concrete surface temperature is 5 ° F above the dew point. A dew point calculation chart is available from a Copps Technical Representative.

BONDING FRESH CONCRETE TO HARDENED CONCRETE: In accordance with ACI 503R (7.2.6). Apply the K-040 to the hardened "old" concrete by spray or short nap roller. Apply the fresh concrete to the wet or tacky primer; do not apply concrete to hardened primer.

NOTE: When vibrators are used it is essential to allow the primer to reach a "tacky" stage, since vibration can, by emulsifying the liquid primer, displace it from the existing concrete; this will result in a weak bond.

SURFACE PREPARATION: K-040 is used to strengthen and seal a porous concrete substrate, therefore, adhesion is paramount. To achieve excellent adhesion, the substrate should be free of all loose and foreign material and should be roughened slightly to provide a coarse profile by either shot blasting or acid etching.

Before blasting or acid etching, any contaminates on/in the concrete must be identified. Oils, grease fats, waxes or other contaminates must be removed prior to roughening the concrete. These can be removed with an application of warm (120° -140° F) caustic detergent, steam cleaning or pressure washing. Degrease the floor, follow with a hot water rinse. Repeat this procedure until the water does not "bead up" on the concrete.

Shot blasting using self-propelled, self-contained equipment is a highly recommended preparation method.

Acid etching can be performed using a solution of 50% muriatic acid and 50% water. (Always add acid to water when mixing). The acid solution should be carefully applied to all surfaces to be coated. The acid will effervesce (foam or bubble) on the concrete if it is free of a sealer or contaminate. If the acid does not effervesce, contact a Copps representative immediately. Do not apply the epoxy. Leave the acid on the concrete for 10-15 minutes then rinse the entire area well with cold water. If the profile is not sufficient - repeat the procedure. We recommend a surface profile similar to 60-100 grit sandpaper. When the profile is sufficient, vacuum up all standing water and allow the surface to dry. Muriatic acid can be dangerous to handle, so proper safety equipment/ventilation should be used. NOTE: Acid etching will produce an uneven profile and can also damage rebar in concrete.

CLEAN-UP: K-040, before it has hardened, can be removed from tools with Copps Enviro Kleen solvent or warm soapy water.

SAFETY: K-040 is an epoxy resin system. Please refer to material safety data sheets before using this product.

WARRANTY AND DISCLAIMER

Copps Industries, Inc. give 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 a recommendation to use any product in conflict with any existing patent rights.

TB#4040 (4/97)