Latex Modified Cement Based Decorative and Waterproof Coating

EXPO 43 is a latex-modified cement-based coating designed for use in thin-section decoration, texturing and weatherproofing applications. This material provides aesthetically pleasing surfaces for building finishes, masonry coating, stucco and patching. EXPO 43 provides excellent adhesion, water resistance and exterior durability. It may be manufactured with or without integral water repellent, depending on intended use as a base material for other coatings or sealers (no water repellent) or as a one step finish (water repellent included). It is applied by roller, brush or spray.

APPLICATIONS:

| Colored and Textured Finishes over masonry, concrete, patching compounds and polystyrene foam.

| Masonry repair and replacement

| Weatherproofing sealer, filler and finish


	*EXPO-43* was applied to the exterior of this repaired brownstone building to create a new, stone-like finish.

TECHNICAL PERFORMANCE PROPERTIES:

Property

Results

Direct Tensile Bond Strength

>150 psi

Drying Shrinkage

<0.08%

Modulus of Elasticity

<150 ksi

Moisture Vapor Permeance

>20 perms

APPLICATION:

1. Surface Preparation: Surface must be clean and free of grease, oil, dirt, crumbling or sealing concrete, coatings and other contaminants or conditions which may hinder adhesion. Dampen surfaces lightly with water or apply EXPO 43A Latex Bonding Agent as a primer. Smooth surfaces may require some roughening. Always apply an inconspicuous test patch under actual use conditions to determine aesthetic and mechanical compatibility prior to large scale application.

2. Mixing and Application: Slowly add EXPO 43A latex to EXPO 43B powder, mixing at slow speed during addition. A ½ HP drill with mud mixing paddle operated at 250-450 rpm is recommended. Avoid mixing speeds and equipment which may tend to whip excessive amounts of air into the mix.

Initially, EXPO 43's integral water repellents will resist wetting (Only applies to mixes incorporating optional water repellent). Continue mixing until cement begins to absorb liquid, and wets out to a smooth paste. Approximately 1.5 to 1.65 gallons of latex are added to each 50-pound bag of EXPO 43, and this level may be adjusted slightly to accommodate individual preferences. For pre-patching, EXPO 43 will require less liquid, and mixes to a smooth, trowelable plaster. For maximum color consistency, measure latex and powder for each mix, and maintain consistent ratio from mix to mix.

Mix only as much material as you will apply in 40 minutes. Do not retemper materials which have partially set, by adding additional latex or water.

EXPO 43 may be applied by brush or wet-mix pneumatic spray equipment. On surfaces primed with EXPO 43A Latex Bonding Agent, apply EXPO 43 within 4 hours of priming, or re-prime prior to EXPO application.

On large projects involving multiple "drops" or work segments, always finish each segment at an inconspicuous "break" such as an expansion joint, ledge or masonry mortar joint.

3. Curing: Under moderate conditions, EXPO 43 requires no special curing regimen. In hot weather, light misting of EXPO surfaces with water may be required to prevent too-rapid drying. In any case, no more than 2 to 3 hours moist-curing is required, and moist curing beyond 24 hours is not recommended. Like other acrylic latex-modified concrete products, EXPO 43 products require DRY curing. Intermittent wetting, such as rainstorms or sprinklers may cause, will have no deleterious effect, however, following a brief initial dry-cure period. Do not apply when rain or freezing temperatures are expected within 24 hours of application. Full cure is reached in 28 days.

4. Clean-Up: Clean tools, sprayers and applicators with water immediately after use. Once dried, EXPO 43 products adhere tenaciously to tools, equipment, clothing and skin. Keep clean during the course of work by repeated rinsing, if required.

5.Subsequent Finishes and Treatments: A popular use for EXPO 43 products has been as a base for other Edison Coatings treatments or finishes, such as our ELASTOWALL 351 waterproof elastomeric wall coatings or SYSTEM 90-Il and 90W Catalytic Breathing Sealers. Acrylic primer #342 should be used for ELASTO-WALL over EXPO applications. SYSTEM 90-Series sealers may be applied when EXPO 43 has dried sufficiently to allow good sealer penetration.

FOR COMMERCIAL AND INDUSTRIAL USE.

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Phone: (860) 747-2220 or (800) 341-6621

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	EDISON COATINGS PRODUCTS ARE FOR COMMERCIAL & INDUSTRIAL USE ONLY

Last Updated:

Wednesday, September 03, 2008


	Society for the Preservation of Historic Cements, Inc.

LIMITS OF LIABILITY

Edison Coatings, Inc. makes no warranties, express or implied, as to the accuracy or completeness of any of the information contained herein. This publication is offered on a complimentary basis as a service to potential customers or specifiers. While every effort has been made to include complete and accurate information, based on data and information believed to be reliable, it is the sole responsibility of the user to determine its suitability for his own intended use and purposes. Nothing contained herein shall be construed as a warranty or guarantee of any product, process or any other recommendation stated herein. Edison Coatings, Inc. assumes no responsibility for advice given, results obtained, or for any damages whether incidental or consequential, which may be incurred as a direct or indirect result of the use of this information. By proceeding to use this information, user acknowledges and agrees that he is doing so at his own risk, and user indemnifies and holds Edison Coatings harmless against any liabilities, costs or expenses resulting therefrom. All product sales are further governed by the Edison Coatings, Inc. CONDITIONS OF SALE.