product information sheet - weatherskin

Weatherskin: Concrete Modifier is a latex additive for concrete and mortars. It improves both bond strength and abrasion resistance of concrete up to 500 %. Typical thickness of application is 1⁄4 inch including dry components and Weatherskin: Concrete Modifier. Concrete modified with Weatherskin: Concrete Modifier can be used for interior or exterior applications. Weatherskin: Concrete Modifier is specifically engineered for patterned overlays, exhibiting a more rigid structure which allows it to adjust itself perfectly into various patterned molds.

Weatherskin: Concrete Modifier is approved by CFIA (Canadian Food Inspection Agency) for use in RegisteredEstablishments handling and processing food goods.

Weatherskin Corporation®, 4209 Brandon St SE, Calgary, AB T2G 4A5Email: [email protected]

uses

• For interior or exterior applications.• To modify concrete, mortars, grouts and overlays.• To improve patching compounds.• Specifically engineered for patterned overlays.• Concrete Adhesive for rigid foam applications.• Flexible undercoat for stucco layer in EIFS systems.

Advantages

• Easy to use.• Improves bond strength by 500 %.• Improves abrasion resistance up to 500 %.• Improves compressive strength by 60 %.• Improves workability.• Reduces water absorption.• Reduces gas permeability.• Freeze / thaw resistant.

Product Information SheetWeatherskin: Concrete Modifier

47 %0 g/LN/A8.6 lbs/gallonMilky whiteAdd between 1 and 3 parts of clean water to 1 part ofWeatherskin: Concrete Modifier 1,000 lbs. of dry components and 7 to 18 gallons of Weatherskin: Concrete Modifier1 year when stored in an unopened container.

SolidsVOCFlash pointSpecific weightColorRecommended dilutionTheoretical coverage (500sq.ft.@ 1⁄4” thickness)Shelf life

General Data


Test batch and test sectionAlways prepare a trial mix to determine the workability and bonding of the modified overlay to the substrate. Prepare a small amount of modified overlay as described below. Apply saucer sized patties 1⁄4” (6mm) thick in an inconspicuous area, and allow to cure for 2 days. Remove patties with hammer and chisel. Inspect of signs for proper adhesion. Concrete with fractured aggregate must be adhered to underside of the test patty. If only laitance is removed, further substrate preparation is required. Examine whether test patties can be stained or dyed if either coloring method is specified.

Surface preparationEnsure that the surface is structurally sound and has cured for a minimum of 28 days. Repair all cracks with WS Epoxy Patching Kit. Ensure that cracks will not telegraph to the surface. Maintain integrity of all expansion joints. New and old concrete should be mechanically profiled. Profile concrete to medium grit sandpaper texture.

Remove all oil, grease, wax dirt, dust, laitance, sealers, release agents and other contaminants which may act as abond-breaker before installing this product.

Mechanical methods are recommended to clean concrete, including shot blasting, scarifying, grinding, sanding, sandblasting and high pressure water blasting.

Contaminants may also be removed by scrubbing with WS:Cleaner Degreaser, followed by thoroughly rinsing andscrubbing with clean water. For the use of WS: Cleaner Degreaser refer to product’s Product Information Sheets. Acid etching is generally not recommended. Do not use unbuffered acid. Do not use solvents to remove contaminants. Do not use sweeping compounds to remove dust. Clean out debris from control joints and tape or mask the joints off to prevent the modified overlay to fill the joints. Use an electric power saw with a masonry blade to bring the control joints through the overlay if necessary. Then fill the joints with WS: Epoxy Joint Fill.

When applying over existing coatings, properly screen and de-gloss existing coatings and test for adhesion and appearance as recommended above.

PrimingDilute one part of Weatherskin: Concrete Modifier with two parts of clean water. Apply the diluted product evenly with a soft nylon push broom. Do not leave any bare spots. Brush off puddles and excess primer. Allow primer to dry clear. Theoretical coverage is 400sq.ft./gallon. Coverage will vary according to surface texture and porosity. Note that primed surfaces, wet and dried, are sticky. Wear baseball or soccer shoes with cleats.


Product use (adhesive mix for rigid foam)Dilute Weatherskin: Concrete Modifier with only 10% water. Mix dry components, finish grade cement or mortar, with diluted Weatherskin: Concrete Modifier. Use the same mixing procedures. The resulting product will be more flexible and adhesive than a standard concrete mixture. Apply with a saw toothed trowel to the vertical or horizontal surface behind your rigid foam board, leaving both vertical ridges and voids, allowing any water that penetrates behind the panel a cavity to escape.

For the Weatherskin:Waterproofing System, and Weatherskin:EIFS (Exterior Insulation Finishing System) a variety of Dupont (DOW Chemicals) extruded polystyrene insulation board products are recommended and warranted by Weatherskin when used in accordance with the full systems. Contact Weatherskin for assistance in determining a proper Dupont insulation board for your project.

DilutingWear protective gloves and goggles to avoid injury from splashes. Seal product containers immediately after use. Always dilute Weatherskin: Concrete Modifier with clean water before mixing dry components. The following table shows the level of modification after dilution.

PrimingDilute one part of Weatherskin: Concrete Modifier with two parts of clean water. Apply the diluted product evenly with a soft nylon push broom. Do not leave any bare spots. Brush off puddles and excess primer. Allow primer to dry clear. Theoretical coverage is 400sq.ft./gallon. Coverage will vary according to surface texture and porosity. Note that primed surfaces, wet and dried, are sticky. Wear baseball or soccer shoes with cleats.

Note that bond strength, flexural strength, abrasion resistance and compressive strength significantly improve with higher modification. Pay attention to that higher than “average” modified overlays are difficult to stain or dye.

MixingWear protective gloves and goggles to avoid injury from splashes. Surface and atmospheric temperature must be between 10 C (50 F) and 30 C (86 F) during the application and while the overlay is curing. Complete all surface preparations and priming before mixing diluted Weatherskin: Concrete Modifier with dry components. Small amounts of product may be mixed by hand using a trowel. Larger amounts should be mixed with a mixing paddle and a 1⁄2 “ heavy duty drill.

WEATHERSKIN: CONCRETE MODIFIER WATER MODIFICATION

1 part Weatherskin: Concrete Modifier 1 part Weatherskin: Concrete Modifier1 part Weatherskin: Concrete Modifier

1 part water2 parts water3 parts water

HighAverageLow


Bagged dry componentsMix dry components with diluted Weatherskin:Concrete Modifier instead of water. For diluting Weatherskin: Concrete Modifier see instructions under the heading “Diluting” above. Add diluted Weatherskin:Concrete Modifier with dry components and mix until the product is lump free. Then check for workability. Repeat this last step until desired workability is achieved.

Site-mixed dry componentsMix sand and cement, typically 2 to 3 parts sand with 1 part Portland cement, according to specifications orpreferences. Instead of water, mix dry components with diluted Weatherskin:Concrete Modifier. For diluting Weatherskin: Concrete Modifier see instructions under the heading “Diluting” above.

Add diluted Weatherskin: Concrete Modifier to dry components and mix until the product is lump free. Then check for workability. Repeat this last step until desired workability is achieved.

Tinted overlaysUse dry colorants only. Pre-mix colorants thoroughly with dry components before adding diluted Weatherskin:Concrete Modifier. Accurately measure and record the amounts of all components used to achieve color consistency between batches.

Coverage1,000 lbs. of dry components cover approximately 500sq.ft. at 1⁄4” thickness.

Setting timeThe setting time of the dry components (unmodified overlay) is generally not affected by the use of Weatherskin: Concrete Modifier.

Curing timeThe curing time of the dry component (unmodified overlay) is generally not affected by the use of Weatherskin: Concrete Modifier.

Clean upBefore Weatherskin: Concrete Modifier has cured, application equipment can be cleaned with water.


Shelf lifeI year when stored in unopened containers under cool and dry conditions. Opened or partially emptied containers may have shorter shelf lives.

Packaging5 USG Pail55 USG Drum

Recommendations• Store product cool and dry. Do not allow to freeze.• Always apply a test patch in an inconspicuous area. Test for adhesion to substrate. Confirm compatibility with the substrate and that the application meets owner’s expectations.• Examine whether test patties can be stained or dyed if either coloring method is specified.• Seal product containers immediately after use.

Exposure risksMay cause eye and skin irritation. Inhalation of vapor may cause irritation with headaches, dizziness, and nausea.

Proposition 65This product does not knowingly contain chemicals listed by the State of California as known to cause cancer, birth defects or other reproductive harm.

VOC contentThis product contains 0 g/L of VOC.

TroubleshootingPROBLEM OBSERVED

Insufficient workability

Staining or dyeing is difficult

PROBLEM OBSERVED

Insufficient amounts of diluted Weatherskin: Concrete Modifier wereused. Weatherskin: Concrete Modifier was not sufficiently diluted.Level of modification is too high.Overlay modification is too high.


PrecautionsKeep out of reach of children. Avoid all personal contact. Use rubber gloves, eye protection. Use adequate ventilation. If the TLV is exceeded or if primer is used in a poorly ventilated area, use NIOSH / MSHA approved respiratory protection in accordance with applicable federal, state, provincial and local regulations. Avoid breathing vapors.

Seal product containers after use. All warning labels must be observed until containers are commercially cleaned or reconditioned.

First aidIn case of eye contact, flush thoroughly with water for at least 15 minutes. Seek immediate medical attention. In case of skin contact, wash affected areas with soap and water. If irritation persists, seek immediate medical attention. If inhalation causes physical discomfort, persists or any breathing difficulty occurs, seek immediate medical attention. If swallowed, seek immediate medical attention. Refer to Material Safety Data Sheet (MSDS) for further information.

Warranty DisclaimerWe guarantee our Products to conform to the specifications of Weatherskin Corporation. Weatherskin Corporation makes no warranty or guarantee, express or implied, including warranties of fitness for a particular purpose ormerchantability, respecting its Products. Liability, if any, is limited to refund of purchase price or replacement of the Product. All consequential damages, labor and cost of labor are hereby excluded.

For orders and inquiries from Canada, US and Mexico, call toll free 1-877-693-9224, or email your orders to Weatherskin’s customer service at [email protected].

Weatherskin Corporation develops and manufactures specialty chemicals, industrial and architec-tural coatings of highest quality. Ask the people who use them.

product information sheet - weatherskin

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