Product Overview
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100% Solids Epoxy Pre-Primer is formulated for use on both steel and masonry. For rusted steel, the penetrating properties and extended dry time of this two-component epoxy seal crevices and other imperfections, promoting better adhesion for subsequent coats. For prepared masonry surfaces, V155 penetrates and seals, providing an excellent foundation for subsequent coats of Corotech epoxy floor coatings. The unique, 100% solids formula of V155 forms a sealed epoxy barrier that inhibits future corrosion. This is a two component product that requires 3 parts of the proper "A" component mixed with 1 part of part "B" catalyst. The components are already pre-measured to the proper mix ratio. No measuring required. Do not mix partial kits.
1 GALLON KIT (Includes A and B)
- Low viscosity easily fills voids and crevices
- Does not shrink - eliminates craters
- Chemical and fume resistant
- Extended cure time allows maximum penetration
- Seals previously coated concrete, masonry, and galvanized metal
Recommended for: Interior or Exterior, Concrete, Galvanized Metal and Reinforced Steel. 100% Solids Epoxy Pre-Primer is designed for use on bare or previously coated concrete, “White Rusted” galvanized metal, and reinforcement of rusted steel. It seals loose edges and crevices, pinholes and other surface imperfections.
Practical Coverage Per Gallon:
- Steel: 800 – 1200 sq.ft.
- Masonry: 500 – 800 sq.ft.
- Previously Coated: 1200 – 1600 sq.ft.
Pot Life: @ 77 °F - 3 – 4 Hours
Dry Times: @ 77 °F – To Touch 12 Hours, To Recoat 12 Hrs. – Max: 3 Days
- Service Time: Light Industrial Use: 72 Hours Moderate to Heavy Industrial Use: 5-7 days Full Cure: Approximately 7 Days *If topcoat is not applied within 72 hours abrade the surface to ensure proper inter-coat adhesion. Maximum abrasion and chemical resistance are achieved at full cure; care should be taken to prevent damage to the coating during the curing process. High humidity and cool temperatures will result in longer dry, recoat and cure times.
Surface Preparation: The surface to be coated must be clean, sound and dry. Freshly poured concrete must age at least thirty days before coating. All oil, grease, release agents, curing compounds, concrete hardeners, laitance and other contaminates must be removed before coating. Previous paint finishes that have deteriorated need to be removed to bare concrete. Previous paint finishes that are in sound condition need to be cleaned and screened to a uniform dull condition. To remove these contaminants scrub the surface with Corotech V600 Oil & Grease Emulsifier. Rinse thoroughly with clean water per label directions. CONCRETE: Curing compounds, concrete hardeners and previous paint finishes can be removed by chemical or mechanical methods. Using mechanical method, abrade or shot blast the surface until curing compound, hardener or paint is completely removed. For laitance removal etch the bare concrete with Corotech® V620 Concrete Etch. Neutralize the acid by rinsing with a solution of 1 lb. Baking Soda to 5 gallons of water or a 5% solution of non-sudsing ammonia and water. When properly prepared, the bare concrete surface should resemble the texture of medium grade sandpaper. Whenever acid etching and/or shot blasting methods of surface preparation are used, it is important to leave the concrete with a uniform profile texture. Over profiling the concrete surface could damage the concrete integrity and will result in reduced coverage rates of the 100% Solids Epoxy Pre-Primer and/or subsequent top coats of Epoxy finishes. After the concrete floor has been prepared and allowed to dry, apply a coat of 100% Solids Epoxy Pre-Primer at a rate not to exceed 800 square feet per gallon. Brush or roll out "puddles" after 20 - 30 minutes. Allow at least 24 hours but not more than 72 hours dry time before applying the 100% Solids Epoxy Finish Coat. STEEL & FERROUS METALS: Although V155 is designed for use over less than ideal surfaces, performance will improve as surface preparation becomes better. The minimum surface preparation for using this sealer is a high pressure wash of at least 2500 PSI at 3 gallons per minute followed by a hand tool [SSPC-SP 2] or power tool [SSPC-SP 3] cleaning. Previously Painted Surfaces: Can be applied over old alkyd or thermoset finishes in good condition.
Mixing Instructions: This is a two-component product that requires 3 part of the V155 “A” Component mixed with 1 part of the V155-90 “B” Component. (Mix ratio 3:1) Do not mix partial kits.
This is a two component kit and is pre-proportioned for error free mixing. Do NOT vary from these instructions. Mix “A” & “B” separately
- Carefully empty the entire contents of V155-90 activator into the can of V155-Part A component resin; scrape the sides of the pail of Part B to make sure all liquid has been added. Part A container is oversized to completely accept entire contents of Part B material.
- Using a jiffy mixer at low speed, blend this mixture for three to five minutes until completely blended. Keep the mixing blade turning at a slow speed to minimize whipping air into material.
- Care must be taken to assure both components are completely mixed in order to avoid partially cured spots in the coating.
- Allow to induct for 30 minutes.
Do not thin this product – it is ready to use once both components are thoroughly mixed. It is extremely important to remember that Epoxy Coatings have a limited pot life; therefore, it is wise to make sure sufficient manpower and correct application tools are in order prior to starting the mixing sequence. Estimated pot life is: 3 – 4 Hrs.
Application: Apply by brush, roller or conventional spray. Airless Spray: Apply with .009 tip and low pressure (just enough to atomize the product). Air Spray (Preferred for appearance and film build): To minimize over spray, use low air pressure and a pot pressure of 5-10 PSI. Do not apply at more than 1.5 mils per coat. Must be top-coated within 72 hours of being tack free. Garden Sprayer: may be used Brush: Natural Bristle only. Roller: Industrial Cover with Phenolic core. ¼” nap. NOTE: Do not allow material to remain in hoses, gun or spray equipment. Thoroughly flush all equipment with recommended thinner or follow state/local guidelines on solvent use. No reduction is necessary. Do not apply if material, substrate or ambient temperature is below 55°F (13°C) or greater than 90°F (32°C). Relative humidity should be below 90%. Do not apply if within 5 degrees of dew point or if rain is expected within 12 hours of application.
NOTE ON SPREAD RATE: Theoretical coverage at 1 mil dry is 1604 square feet per gallon; however, practical application is expected to be 600-800 square feet per gallon. Actual spread rate will vary based upon numerous factors, including texture of the substrate, application method, waste and surface porosity. The Theoretical Spread rate listed on this document has not taken into account these factors and is only based upon the volume solids of this product and the recommended wet film thickness when applied to a smooth substrate.
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