When using spray equipment, always wear protective respirator, and mask adjacent areas to protect property from overspray. Dried material will be difficult to remove. Remove overspray immediately with hot water and detergent.
Coverage Rates
Do not thin. Coverage will depend upon method of application, surface porosity, and the texture of the substrate. Coverage on flat finished concrete is typically 100–300 ft2/gal (2.5-7.4 m2/L). Porous, broomed, or textured finishes will require more stain and coverages of 50 - 200 ft2/gal (1.2 - 4.9 m2/L) is typical.
Equipment
Apply SCOFIELD® Revive™ Exterior Concrete Stain by brush or acetone compatible pump-sprayer. Always wear protective clothing, goggles, gloves, and particulate respirators. Clean equipment with acetone taking care to follow all acetone safety requirements.
Spray Applicator Guidelines:
Acetone Compatible Pump Sprayer: Use conical tip.
Airless spray: Not advised.
HVLP spray: Not advised.
Substrate Preparation
Before applying stain, surfaces must be made porous and be dry and clean of all prior sealers, curing compound, oils, or other foreign materials that might prevent penetration or adhesion, and meet a Concrete Surface Profile (CSP) of 1, as determined by the International Concrete Repair Institute, (ICRI), Alexandria, VA. Grind, acid etch, power wash, or scrub surfaces with stiff bristle brushes and strong detergents to remove these undesired materials and any loose concrete laitance that may harm adhesion.
Always rinse concrete surfaces and allow them to completely dry prior to application. Plan carefully and divide work areas into sections using walls, joint lines, or other stationary features to provide natural stopping points of the application.
Preparation and Mixing:
Using a wooden paint stick suited for your package size, hand-stir settled pigment from the bottom of the can until all the material is off the bottom and the stain reaches a streak-free uniform color. This will take approximately 3 to 5 minutes. If using more than one container on a large job, or material from different lot numbers, mix or “box” together to minimize any possible color variation.
SCOFIELD® Revive™ Exterior Concrete Stain is low in viscosity to maximize substrate penetration. As a result, periodically stir or shake the material to be applied every 5 minutes during application. Transfer mixed material into a roller pan or spray applicator rated for use with Acetone containing products. Remix to insure all pigment is suspended immediately before beginning application.
Warning: Do not use a power drill or other spark creating device to mix the material. This could ignite solvent vapors and cause a fire. Close container after each use.
Jobsite Test Sections
Prior to general application, representative Jobsite Test Section(s) must be produced and approved for each individual concrete surface, and for each color, stain, and sealer combination that will be created. Use Jobsite Test Sections to verify system suitability, surface preparation methods, adhesion, safety, performance, wet and dry slip resistance, application techniques, color, visual appearance, and product coverage. Do not proceed with products, techniques, or finishing systems that do not meet required specifications or meet with site owner approval.
Selected Jobsite Test Sections should be in close proximity to the larger job area, and made from the same concrete ingredients and mix design that will be later be placed. Test sections should be sized to be representative of the finished project, and be produced by the same workers who will place the concrete and apply the curing compound/sealer system. All test sections should be presented to owners for visual and performance approval prior beginning main project areas.
Stain Application
Avoid unsightly lap marks by applying stain to full opacity at coverage rates described using a brush, or acetone resistant sprayer.
Stir or shake containers at least every 5 minutes during application to ensure pigments are uniformly applied to the surface. Apply only when temperatures are between 40 °F (4 °C) and 95 °F (35 °C), and avoid application to surfaces heated above 95 °F (35 °C) from strong direct sunlight.
The preferred method of application is to saturate the surface to be stained with a pump sprayer, and work material into the substrate with a soft bristle broom until all liquid solvent has evaporated from the surface or penetrated into the substrate. Work the broom in random directions while moving from newly deposited wet areas back into the areas previously stained. Maintain a wet edge to the project to avoid lap marks. Do not allow material to dry while puddled.
If color residue remains after treatment has cured for one day, gently scrub and rinse with water to avoid tracking residual color to adjacent areas.
Dry and Cure Times:
Allow four to eight hours drying time before permitting foot traffic. Drying time will depend on temperature and surface porosity. Do not pressure wash or use aggressive cleaning methods for two weeks after application.
Clean tools and equipment with acetone, taking care to following the acetone manufacturer’s instructions and safety requirements.
