LABPOX 35 100% Solids Epoxy | Pinhole Mitigation for Porous Concrete LABPOX 35 is a high opacity, professional grade, 100% solids specialty epoxy engineered specifically for porous concrete and oil contaminated surfaces. This VOC free system features advanced pinhole mitigation technology, making it the ideal choice for slabs prone to outgassing in industrial, commercial, and residential environments. The Professional Advantage: LABPOX 35 delivers superior mechanical properties and best in class resistance to oil and contaminants. Its high density formula prevents dirt penetration and reduces maintenance, while the pinhole mitigation technology ensures a superior finish on difficult substrates. Technical Performance Snapshot Property ASTM Standard / Value Mix Ratio 2 Parts A to 1 Part B Compressive Strength 12,725 psi (ASTM D695) Shore D Hardness 84 Shore D (ASTM D2240) Abrasion Resistance 50 mg loss (ASTM D4060) Pull Off Test >3 Mpa (ASTM D7234) VOC Content 0 g per L (100 percent Solids) Pot Life 30 minutes at 72 Degrees Working Time 45 minutes at 72 Degrees Where LABPOX 35 Fits in a Flooring System 1. As a Specialty Primer for Problem Slabs LABPOX 35 is self priming and designed for oil contaminated surfaces and porous concrete. It penetrates the substrate to provide a superior mechanical bond where standard epoxies might experience adhesion failure. 2. As a High Opacity Base Coat The superior opacity of LABPOX 35 is equivalent to a 3 coat system, providing excellent hide and a uniform foundation for solid color or decorative broadcast systems. 3. As a Flake or Quartz Receiver Coat Specifically suited for broadcast systems, this product reduces the occurrence of pinholes and provides the density required to prevent contaminant migration beneath the coating. Approximate Coverage Rates Desired Thickness (Mils) Square Feet Per Gallon (SFPG) 8 Mils 200 SFPG 10 Mils 160 SFPG 12 Mils 133 SFPG 16 Mils 100 SFPG 20 Mils 80 SFPG Cure Schedule (At 72°F / 50% Relative Humidity) Cure Stage Time Frame Working Time 45 Minutes Tack Free 5 Hours Recoat Window 5 to 24 Hours Dry Through / Sandable 9 to 10 Hours Foot Traffic 24 Hours Full Chemical Cure 7 Days System Limitations Moisture content must be below 4 percent unless a moisture mitigation system is installed. Failure to meet this requirement can result in adhesion loss or coating failure. The product is not immune to plasticizer transfer from rubber tires; tires should cool down before parking on the coated surface. Recommended System Setup For a guaranteed bond and long term finish, follow this professional stack: Primer: LAB Surface Epoxy Primer (recommended for high traffic) or LABPOX 35 (self priming). Base/Body: Apply LABPOX 35 (Colored). Topcoat: Seal with LABFAST, LABSHIELD ECO, or AQUALAB PUR for additional UV and chemical protection. Mixing and Application Requirements Application Equipment 1/8 inch notched rubber squeegee 3/8 inch nap woven shed resistant roller cover 3 inch chip brush Mixing Instructions Precision in the mixing process is critical to ensure the chemical bond and structural integrity of the LABPOX 35 system. Pre-Mix Part A: Before final mixing, pre-mix Part A at low speed using a Paddle Mixer and a drill. Mixing should be done until the settlement comes off the bottom of the bucket and the color become uniform. Combine Components: Pour 2 containers of Part A (Base) into a large mixing bucket, being careful not to pour material onto the sides of the larger bucket. Add Activator: Pour the Part B (Activator) directly into the center of the large bucket. Again, ensure no material gets on the sides of the Base bucket; failing to do so may leave unmixed resin that causes soft spots on your finished floor. Mixing Time: Mix full kits with a Box Mixer for 2 minutes. Use a low-speed drill (300 to 450 RPM) to minimize air entrapment. DO NOT attempt to mix a full kit of this product with a Paddle Mixer. The volume is insufficient for a thick, heavy duty epoxy such as this. Scrape Sides: During the mixing process, make sure to scrape the sides and bottom of the mixing container thoroughly so no unmixed material remains. Immediate Placement: Once the product is properly mixed, it needs to be immediately poured onto the floor. Leaving mixed material for too long in a mixing pail will create an exothermic reaction (rapid heat buildup), rendering the product unusable. Application Procedure Application Procedure Pour mixed material in a 20 foot long 12 inch wide ribbon Do not drain or scrape remaining material from the bucket onto the floor. Spread to uniform thickness with a notched squeegee and roll North South and back roll East West to achieve uniform coverage. Roller should be a 3/8 inch shed resistant epoxy roller cover. PRO TIP: If pinholes appear during application, allow sufficient time to go back and burst them by rolling back and forth or with another squeegee pass. For extremely porous slabs, sand and plug persistent pinholes with epoxy gel after the first coat has cured. Frequently Asked Questions Is LABPOX 35 good for oil contaminated floors?Yes. It is considered best in class for resistance to oil and other contaminants that typically cause fisheyes or adhesion failure in standard epoxies. Can this be used as a self priming coat?Yes. LABPOX 35 is self priming and specifically designed to penetrate porous concrete slabs to reduce outgassing. Is this product beginner friendly?While it offers a comfortable 45 minute working time, proper mechanical surface preparation (CSP 2) and moisture testing are strictly required for a professional grade installation. How do I handle very porous concrete?On very porous slabs, use a tight squeegee with no back roll for the first coat to properly seal the surface before applying the body coat. What is the mix ratio for LABPOX 35?It is a two component system with a precise mix ratio of 2 Parts A to 1 Part B (2A:1B) by volume. Does this epoxy amber or yellow?Like most 100 percent solids epoxies, it is not UV stable. For maximum UV protection and to slow yellowing, a topcoat like LABFAST or AQUALAB PUR is strongly recommended. How soon can I walk on the floor?The floor can typically accept foot traffic in 24 hours, but full chemical cure takes 7 days. Do not clean the surface with water or chemicals during the first week. Is this product safe for interior use?Yes. LABPOX 35 is 100 percent solids and VOC free, making it virtually odor free and suitable for interior manufacturing, commercial, or residential projects.