APF VaporSolve LP | 99% RH Moisture Mitigation Epoxy APF VaporSolve LP (Low Perm) is a specialized, 100% solids epoxy coating engineered to isolate moisture-sensitive flooring systems from concrete with high moisture levels. It acts as a high-performance moisture mitigation layer, designed to prevent the devastating flooring failures caused by excessive moisture vapor transmission through the slab. VaporSolve LP is suitable for concrete substrates showing up to 99% Relative Humidity (RH) when measured in accordance with ASTM F2170. It is part of the proven APF VaporSolve system, formulated for low viscosity and superior substrate wetting to promote deep penetration and a permanent bond, even to damp concrete. Technical Performance Snapshot Physical Property Value Maximum Moisture Rating 99% RH (ASTM F2170) Permeability (ASTM E-96) 0.01 Perms Adhesion to Concrete (ASTM D-4541) >500 psi (Concrete Failure) Pot Life / Bucket Time (ASTM D2471) 10–15 Minutes at 77°F VOC Content <50 g/L Critical Bucket Time Warning: VaporSolve LP has an extremely short pot life of 10–15 minutes. You must pour the material out of the pail immediately after mixing. If left in the bucket, the material will rapidly generate heat and kick, significantly reducing your application window. Once spread on the cooler concrete surface, your actual working time will extend, but the material must get out of the pail immediately. The Silicate Conflict If the concrete surface is known or suspected to have been treated with silicates, densifiers, or reactive silicate curing compounds, the use of APF VaporSolve Primer is required before applying VaporSolve LP. Shot-blasting or diamond grinding alone will not reliably remove metasilicate residues from within the concrete pores. In these cases, the primer is a mandatory step to bridge the gap and ensure the system maintains a permanent bond. Where This Product Fits in a System APF VaporSolve LP is used below moisture-sensitive flooring systems (Epoxy, Urethane, Polyaspartic, or Cementitious Overlays) when elevated concrete moisture is present. It is a functional moisture control membrane designed to isolate the finished floor from moisture vapor coming through the slab. Packaging and Coverage Packaging: Supplied in complete A+B units in 1.5 gallon and 3.0 gallon kits. Use only as a complete mixed unit; do not break down into partial mixes. Coverage Rates: To achieve the 0.01 perm rating, the material must be applied at 100 sq. ft. per gallon (16 mils Wet Film Thickness). Proper coverage is critical because moisture mitigation is a thickness dependent application. If spread too thin, the system may fail to isolate moisture vapor effectively. Surface Preparation Concrete must be clean, structurally sound, and mechanically prepared to a minimum ICRI CSP 2 to 3 surface profile. The concrete must be free of wax, grease, loose coatings, curing compounds, and dust. Note: Acid etching is not a professional installation procedure and should not be used in place of mechanical grinding or shot blasting. It does not create a consistent surface profile and may void manufacturer warranties. Mixing Instructions Thoroughly pre-mix Part A before adding Part B. Combine both components and mix for 2 to 3 minutes using a slow-speed drill and paddle mixer. Scrape the sides and bottom of the mixing container during mixing. Do not mix by hand. Do not mix at high speeds, as whipping air into the material can create bubbles, pinholes, and surface defects. Application Instructions Apply VaporSolve LP immediately after mixing. Spread the product with a squeegee and back-roll with a quality solvent-resistant 3/8-inch nap roller cover. The material must be rolled twice to achieve proper substrate wetting and to ensure a pinhole-free seal. Use a North-South and East-West rolling pattern to distribute the product evenly across the prepared concrete. Recoat within the 12–24 hour window. If the 24-hour window is exceeded, you must abrade the surface with 80–100 grit until it is uniformly gloss-free and dust-free before proceeding. Common Frequently Asked Questions Can I use this on "Green" concrete? Concrete typically needs to cure for 28 days before coating. While VaporSolve LP can handle high humidity, it is still recommended to wait for the concrete to stabilize. If you are on a fast-track construction schedule, please contact us to discuss the specific age of your slab before proceeding. Why is the Perm rating so important? A perm rating measures the rate of water vapor transmission. VaporSolve LP’s 0.01 perm rating reduces moisture vapor transmission to near zero, helping prevent failure of moisture-sensitive flooring systems installed above it. What happens if I see "Pinholes" after application? Pinholes occur when air escapes the concrete as the epoxy cures. This is common on porous slabs and should be expected in some cases. If you see pinholes after your first coat, you must apply a second tight coat. A single pinhole can allow moisture vapor to pass through and eventually cause a failure in the finished flooring system. Can I use this as my final garage floor finish? No. VaporSolve LP is a functional industrial resin. It is not UV stable and is not designed for aesthetics. It must be covered with a pigmented epoxy, decorative flake system, or appropriate topcoat. Do I need to sand before my next coat? If you apply your next layer within the 12 to 24 hour recoat window, no sanding is required. If you wait longer than 24 hours, the surface becomes too hard for a chemical bond and must be sanded with 80–100 grit to create a mechanical profile. Can I use Pigmented VaporSolve LP directly on concrete? Pigmented VaporSolve LP is designed to be applied over VaporSolve Primer. If you are applying directly to properly prepared concrete without a primer, use the clear version. Why can't I split the kits into smaller batches? The mix ratio for moisture mitigation products must be exact to maintain the permeability rating. Measuring by eye or in small batches leads to errors. Even small mix inaccuracies can create weak spots that allow moisture to pass through, leading to system failure. Always mix the full kit as supplied.

LABPOX MVB FAST | 100% Solids Epoxy Moisture Vapor Barrier LABPOX MVB FAST is a professional grade, 100% solids epoxy moisture vapor barrier designed to stop moisture before it destroys your floor. This system is engineered to bond to damp concrete slabs with up to 100 percent relative humidity, making it one of the most reliable solutions for moisture control in the industry. Moisture is the leading cause of epoxy floor failure. This product is designed to eliminate that risk and provide a stable foundation for epoxy, polyaspartic, and urethane flooring systems. If you are installing over a slab with unknown moisture conditions, this is not optional. This is your insurance policy. Performance and Moisture Control Up to 100% RH: Bonds directly to damp concrete and new concrete slabs less than 28 days old. Permeance: Less than 0.1 perm at 16 mils for maximum vapor protection. Moisture Reduction: Reduces emission rates from 25 lbs to less than 3 lbs per 1000 sq ft. Pinhole Mitigation Technology: Formulated to reduce surface defects and bubbles by up to 98 percent. Surface Preparation Requirements Proper preparation is mandatory. This product solves moisture problems, not surface contamination issues. Mechanical Preparation: Surface must be mechanically ground or shot blasted to a minimum CSP-2 or CSP-3 profile. Fiber Reinforced Concrete: All surface fibers must be completely removed by burning or grinding. Fibers act as conduits for moisture and will compromise the barrier if not fully encapsulated. Clean Surface: Concrete must be free of grease, oil, paint, or curing agents. Use a moisture meter to evaluate slab conditions. While this product bonds to high RH slabs, the surface must be free of standing moisture at the time of application. Radiant Heat: If a heated floor is installed, turn the system off 2 to 4 hours before application and keep it off for the duration of the cure. Mixing Instructions Proper mixing is critical to ensure the chemical properties of the moisture barrier activate correctly. Pre Mix Part A: Mix Part A at low speed before combining to ensure all pigments and solids are fully suspended. Mix Ratio: Combine 2 parts Part A with 1 part Part B in a clean container. Mix Time & Technique: Mix for 3 minutes using a Box Mixer and a low speed drill at 300 - 450 RPM. Immediate Placement: Once mixed, the material must be immediately poured onto the floor in ribbons. Leaving it in the pail will cause an exothermic reaction, making the product unusable. Application Apply using a 3/16 inch notch squeegee and back roll with an 18 inch roller to achieve a uniform film thickness. Work the material into the pores of the concrete to ensure full penetration. A minimum thickness of 16 to 18 mils is required to meet the permeance ratings for moisture mitigation. PRO TIP: This is a fast moving product. Once Part A and Part B are mixed, begin application immediately. Do not allow material to sit in the bucket. Extended dwell time will shorten working time and can lead to poor flow and inconsistent results. Coverage Rates and Permeance The vapor barrier performance of this product is directly proportional to the thickness of the coating. To ensure the permeance rating and performance of the barrier, Labsurface recommends a uniform film thickness of 16 to 18 mils. Thickness (Mils) Approx. Coverage 16 Mils (Recommended) 100 Sq. Ft. Per Gallon 14 Mils 114 Sq. Ft. Per Gallon 12 Mils 133 Sq. Ft. Per Gallon 4 to 6 Mils (Green Concrete Primer) 265 to 400 Sq. Ft. Per Gallon Frequently Asked Questions Can I broadcast vinyl flakes or other aggregates directly into MVB FAST?No. Broadcasting flakes or other aggregates directly into the moisture vapor barrier will decrease the moisture vapor resistance by as much as 75 percent. MVB FAST is a dedicated mitigation layer and must be applied as a standalone film at a uniform thickness to maintain its perm rating. You must apply a separate receiver coat over the barrier before broadcasting flakes. Do I really need a moisture vapor barrier?If you are unsure of the moisture levels in your slab, the answer is yes. Moisture is the leading cause of coating failure. Using MVB FAST is your insurance policy against delamination. Can this be applied to damp concrete?Yes. This product is designed to bond to concrete slabs with up to 100 percent relative humidity, provided the slab is completely dry to the touch at the time of installation. What happens if I have fiber reinforced concrete?Fibers can act as conduits for moisture to travel through your coating. You must burn or grind away all surface fibers and ensure a minimum 16 mil thickness to fully encapsulate them. How fast can I continue my flooring system?MVB FAST is engineered for speed. You can typically recoat in as little as 3 to 4 hours, allowing you to install a full system in a single day. What causes fisheyes or bubbling in the vapor barrier?Most issues are caused by surface contaminants or air movement. Ensure all HVAC vents are directed away from the floor and turn off all fans to prevent the material from skinning over prematurely. Can I use this over new concrete?Yes. This product can be applied to new concrete slabs that have been installed within 28 days, provided the surface humidity is controlled for at least three hours prior to installation. Why is reverse mixing recommended?Switching your mixer to reverse mode after 90 seconds forces the liquid from the bottom of the can to the top. This ensures a 100 percent homogeneous mixture which is critical for moisture mitigation. What is the maximum moisture reduction rate?When applied at the correct thickness, it reduces moisture emission rates from 25 lbs down to less than 3 lbs per 1000 square feet over 24 hours. Do I have to sand before applying my next coat?If you apply the next layer within the 24 hour recoat window, no sanding is required. After 24 hours, you must sand the surface to a dull finish to ensure a mechanical bond. Does this stop hydrostatic pressure?Very high levels of humidity may indicate hydrostatic pressure from a drainage failure or water leak. While MVB FAST is a powerful barrier, the source of any major water leaks should be addressed before installation.

Premera Easy MVB Premera EasyMVB is a unique surface treatment for concrete consisting of specialized reactive chemicals in a colloidal silica matrix. EasyMVB can be used as a concrete treatment to penetrate into concrete and creates a moisture vapor barrier within concrete by reacting with and sealing pores and capillaries, eliminating vapor transmission and solving hydrostatic pressure challenges. EasyMVB is also a complementary pre-primer treatment for Premera’s sol-gel based products. When used in combination with Premera FP1 Fusion Primer, up to 25 lbs of moisture vapor can be withstood, effectively eliminating adhesion issues caused by moisture vapor. When applied to concrete or any pozzolanic material, Premera EasyMVB penetrates to seal, densify and thereby harden cementitious surfaces. Premera EasyMVB is formulated to penetrate and block capillaries by reacting with free calcium hydrates to form an insoluble, permanent barrier. It effectively eliminates efflorescence, improves water resistance, water repellency, and surface properties of cementitious materials. Premera EasyMVB is recommended for use as a pre-priming surface treatment on floorings, liners in immersion application, and adhered waterproofing membranes – including structures under hydrostatic pressure. Premera EasyMVB may be used as a standalone surface treatment in certain applications. Features: Environmentally friendly, zero VOC Blocks up to 25 lbs of hydrostatic pressure Prevents efflorescence from occurring Can polish concrete after HLT is usedReduces risk of moisture out-gassing, pin-holing, and blisters in top coats