RUSTGRIP ® is a one-part, metallic-filled moisture-cured polyurethane that can be used as a primer, topcoat or to encapsulate. It can be applied to metal, concrete,masonry and wood, as specified.

SURFACE PREPARATION
Surface must be clean from oil, tar, rust, grease,salts, and films.
1) Use general degreaser if needed.
2) Clean surface using TSP (tri-sodium-phosphate) or a citrus cleaner to release dirt and degreaser residue.
3) Pressure-wash if possible @ 3500 psi.
4) Salt contamination on a surface can come as a result of salt water, fertilizers, and car exhaust. Use Chlor*Rid orequivalent to decontaminate surface if salts are present. Acceptable levels: Nitrates: 5-10 mcg/cm², Sulfates: 5-10 mcg/cm², Chlorides: 3-5 mcg/cm²

Surface must be completely dry before applying.
1) RUSTGRIP ® must be applied during proper temperatures and the prescribed overcoat window of the coating over which it will be applied.
2) If applied over an existing coating having a glossed or shiny finish, it must be sanded and roughed to remove gloss before application, to improve the profile.
3) Additional coats of RUST GRIP® can only be appli sted when the 1st coat becomes tacky to the touch and has little to no transfer of coating. After this stage, the surface must be lightly sanded to improve the profile.

NOTE: If pack rust or mil-scale exists, they must be removed by grit blast, power tool or needle gun. Glossy surfaces should be sanded to a dull finish to improve the profile and enhance adhesion. If mil-scale exists on hot rolled steel, the pores will be blocked and the surface must be taken to a SSPC – SP6 or SP11. Once these steps are taken, begin Surface Preparation Instructions. (Above)

MIXING
1) Mix by hand or with a power drill using low-medium speed with NO vortex. (A vortex will draw moisture into the coating.)
2) When the container is opened, the coating will be a yellowish green color. Mix continuously (with no vortex) until the entire surface of the coating turns a silver gray color. Once the coating color has turned completely silver-gray, mix for two more minutes making sure all paste is off of the bottom. Stirring this paste distributes the metallic pigments throughout the coating.
NOTE: Once container is opened, the product must either be used completely, or sealed with visqueen/plastic before reattaching lid after use, or repackaged and sealed well in an unlined metal can. Product may thicken if left open in can. Pour off the amount you intend to use after proper stirring. If left open, the product will harden in the container.

POT LIFE
4 hours at 70°F degrees (21°C) at 60% or higher Relative Humidity. Cooler temperatures; longer pot life. Warmer; shorter pot life. Higher humidity shortens pot life. Lower; may lengthen pot life.

APPLICATION
1)RUSTGRIP ® can be applied by soft bristle brush or ¼” nap roller made for solvent use or spray. If application is by spray, use a standard airless sprayer (1.5 gallons/minute at 3,300 psi) with a .013-.017 tip.
2) In all applications (brush or roller), apply at “half-speed” and use a cross-hatch method (side-to-side, then top-to-bottom) slowly to prevent pinholes and allow penetration.
3) If encapsulating rust, lead-based paint, other bio-hazardous materials or bridges, brushing is the preferred application method. Apply the first coat by brush (keeping it very wet at all times), using the cross-hatch method. Go about 30 feet then return to the beginning and apply a second coat identical to the first. A third coat may be required. This method will insure the coating is worked into the pores and fully encapsulates the existing surface, while leaving enough coating over the surface to avoid pinholes.
4) Overcoat with RUSTGRIP ® or other coatings immediately after surface is dry to the touch to achieve proper adhesion. Higher temperature and humidity will shorten curing times, normally within 1 to 2 hours after reaching the dry-to-touch stage, will be determined in accordance with the project specifications. If product applied after the specified overcoat time, the surface will need to be lightly sanded to achieve good adhesion.

APPLICATION NOTES:
1) The number of coats necessary and the thickness of each will be in accordance with the job specifications, blast profile, or rust profile.
2) Temperatures must always be a minimum of 5 degrees above the dew point during application.
3) At high RH values of 60% or more, RUSTGRIP ® cures very quickly and the window for applying another layer of coating is very short. At 85% RH, it could be determined that one has only an hour or less over-coat window depending on the ambient temperature. The higher the temperature, the faster solvents evaporate out of the coating. It is always best to overcoat immediately when the first coat of RUSTGRIP ® becomes dry to the touch. Since the curing process is so dependent on ambient temperature and RH, the physical touch-test is always the best approach when working in high humidity environments. RH of 60% and up.

CURE TIME
1) 30-60 minutes to tack-free when 70°F. (21°C) at 40%. relative humidity.
2) Fully cures in thirty days when 70°F. (21°C) at 40%. relative humidity.

CLEANING EQUIPMENT
1) If breaks are taken, spray systems should be flushed with solvent.
2) After completion, spray system should be flushed and cleaned with solvent.
3) After completion, brushes and rollers should be discarded.