100% Solids Epoxy Coatings

  • A-6300: Pigmented Vapor Seal
  • A-7000: Colored Chemical Resistant Epoxy
  • A-7200: Clear Chemical Resistant

In-Depth Analysis of These Epoxy Systems:

A-6300 100% Solids Epoxy Coating Description

A-6300 Pigmented Vapor Seal 100% Solids EpoxyAmericrete’s 6300 is a two component, 100% solids, low viscosity, moisture accepting epoxy primer.  It has an ability to reduce the hydrostatic pressure emitted by the floor from 12 lbs per 1000 square feet to less than 1 lb. Americrete’s Vapor seal can even cure underwater without affecting its adhesion. When applied at 73°F / 50% humidity, Americrete’s 6300 is a 5-7 hour cure.

Epoxy Uses

Americrete’s 6300 can be used to prime concrete, metal, and wood. Corrosion inhibitors can be added (by special request) for use over metal substrates. It is an excellent all-around concrete primer/sealer with incredible adhesion.

Advantages

  • Meets USDA criteria
  • 100% Solids
  • Low Viscosity
  • Chemical Resistant
  • High Build
  • Moisture Tolerant
  • Convenient 2:1 Mix; A:B=2:1
  • Superior Adhesion

Coverage

Americrete’s 6300 covers up to 300 sq.ft. per gallon under normal conditions, which will achieve 5.2 dry mils. Americrete’s 6300 may be applied at a heavier rate to achieve a higher build system or to accommodate the broadcasting of aggregates.

Colors & Packaging

  • Available pigmented in any of our standard colors. Clear is also available but has an amber hue.

Packaging

  • 1 1/2 gallon kits
  • (1 gallon part A to 1/2 gallon part B)
  • 15-gallon kits

(10 gallons part A to 5 gallons part B)

Inspection

  • Concrete must be clean, dry, and free of grease, paint, oil, dust, curing agents, or any foreign material that will prevent proper adhesion. 
  • The concrete should be at least 2500 psi and feel like 30-grit sandpaper.  The concrete should be porous and be able to absorb water. 
  • A minimum of 14 days cured is required on all concrete. Relative humidity in the concrete floor slab should be below 80% (per ASTM F-2170).
  • Before starting flooring work, test the existing concrete slab to make sure there is no efflorescence or high levels of alkalinity. Alkalinity refers to a high PH reading which means the floor is not neutral.
  • A high alkaline environment can cause salts to creep up through the cement called efflorescence. 
  • These salts have a tendency to prevent or destroy the bonding of coatings to the concrete. 
  • The most common form of testing is the use of a wide-range PH paper or tape. 
  • Make sure the floors PH reading ranges between 5-9 to ensure adhesion.
  • The testing of concrete for alkalinity can show the amount of alkalinity only at the time the test is running, and cannot be used to predict long-term conditions.
  • Calcium chloride tests should be conducted to determine if the concrete is sufficiently dry for an epoxy flooring installation. The calcium chloride tests should be conducted in accordance with the latest edition of ASTM F 1869, Standard Test Method for Measuring Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.
  • When running a calcium chloride test, it is important to remove any grease, oil, curing agents, etc. so accurate readings can be obtained.  A rate of 15 lbs/1000 ft²/24hr period or less is an acceptable amount of vapor pressure for use of Americrete’s 6300.

Surface Preparation

  1. Prepare the surface by shot blasting.
  2. All expansion joints should be honored.
  3. Cracks should be chased with a diamond crack chaser (approximately 1/4” x 1/4”), swept or blown clean.  The surface should feel like 30 grit sandpaper and be porous enough to absorb the primer. 
  4. Lightly misting the floor with water can help promote adhesion.  Avoid puddling.

Mixing

  1. Mix 2 parts A with 1 part B (by volume) of Americrete’s 6300 together for 3 to 4 minutes with a slow speed drill mixer.
  2. For best penetration into concrete, thin by adding up to 1 quart of acetone to each 1.5-gallon kit. 
  3. The thinned material must be applied at less than 5 mils (and not puddle) to cure properly. 
  4. The Americrete’s 6300 will have approximately 20 minutes of working time.

Application

  1. As a primer: Immediately after mixing, spread a strip of the batch onto the surface along the edges where it will be cut in using a brush. 
  2. Pour the remaining material near the cut in the area and spread evenly using a trowel or squeegee and back roll using a 1/4” nap non-shedding roller.
  3. The thinned material must be applied at less than 5 mils (and not puddled) to cure properly. Americrete’s 6300 can be applied as an intermediate coat for extra protection from hydrostatic pressure: Mix and apply without solvent at the desired thickness using a notched trowel or squeegee and backroll using a 1/4” nap non-shedding roller. 

Drying Time

  1. You may re-coat as soon as the surface is dry to touch or in about 8 hours (but not later than 48 hours).
  2. Lightfoot traffic may be permitted in 24 hours, light vehicle traffic in 72 hours, heavy traffic in 7 days. 
  3. All times are based on the average temperature of 70 degrees and 50% humidity. Cooler temperatures will increase drying time.

Limitations

  • Do not apply at any temperature below 50˚ F or above 95°F.
  • Concrete must be cured for a minimum of 10 days and have less than 15 lbs of moisture per thousand square feet.
  • For interior use only unless protected by a UV resistant coating such as urethane.
  • Epoxy must be cured for a minimum of 24 hours before coming in contact with water.
  • Concrete should be a minimum of 2500 psi.

A-7000 100% Solids Epoxy Coating Description

A-7000 Colored Chemical Resistant Epoxy 100% Solids Epoxy. A-7000 is a two component (colored), 100% solids, high-build, and low viscosity, low odor, cyclo-aliphatic, chemical resistant epoxy. This highly versatile epoxy coating comes in a variety of pigmented colors. It can be used as a primer, base coat, or as a topcoat, depending on your need.

Epoxy Uses

A-7000: epoxy is used to create industrial seamless floors in manufacturing plants, mechanical rooms, warehouses, commercial kitchens, and residential garages.  In combination with color quartz or paint chips, it can be used to create a decorative floor coating.  Americrete’s 7000 epoxies (with aggregate) can also be used as a mortar for overlays or repairs for concrete. A-7000 is a self-priming epoxy by adding one quart of acetone per 1 ½ gallon kit and directly applying it to the concrete substrate.

Advantages

  • Low Viscosity
  • Meets USDA criteria
  • 100% Solids
  • Chemical Resistant
  • High Strength
  • Water Clear or Pigmented
  • Durable yet Flexible
  • Low Odor
  • High-Build
  • Superior Adhesion

Coverage

Coverage will vary depending on the condition of surface and desired thickness.

  • As a Primer: 250-300 square feet per gallon As a Coating: 200-300 square feet per gallon
  • For Epoxy Mortar: 1 gallon of epoxy mixed with 5 gallons of sand will yield approximately 3 to 4 gallons of mortar. 

Packaging & Colors

  • 1 1/2 gallon kits
  • 15-gallon kits
  • Medium Gray, Beige, Tan, Black, Brown, Tan, Cream, Aspen, Mesa, Pearl, Sand, Mocha, Nutmeg, White and custom colors. 
  • 7000 is also available in a pastel base, deep base, and accent base for easy tinting.

Inspection

  • Concrete must be clean, dry, and free of grease, paint, oil, dust, curing agents, or any foreign material that will prevent proper adhesion. 
  • The concrete should be at least 2500 psi and feel like 30-grit sandpaper. The concrete should be porous and be able to absorb water. 
  • A minimum of 28 days cured is required on all concrete. Relative humidity in the concrete floor slab should be below 80% (per ASTM F-2170).
  • Before starting flooring work, test existing concrete slab to make sure there is no efflorescence or high levels of alkalinity. 
  • Alkalinity refers to a high pH reading which means the floor is not neutral. A high alkaline environment can cause salts to creep up through the cement called efflorescence. 
  • These salts have a tendency to prevent or destroy the bonding of coatings to the concrete. The most common form of testing is the use of a wide-range pH paper or tape.  Make sure the floors PH reading ranges between 5-9 to ensure adhesion. 
  • The testing of concrete for alkalinity can show the amount of alkalinity only at the time the test is running, and cannot be used to predict long-term conditions.
  • Calcium chloride tests should be conducted to determine if the concrete is sufficiently dry for an epoxy flooring installation. The calcium chloride tests should be conducted in accordance with the latest edition of ASTM F 1869, Standard Test Method for Measuring Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.  
  • When running a calcium chloride test, it is important to remove any grease, oil, curing agents, etc. so accurate readings can be obtained.  A rate of 4.5lbs/1000 ft²/24hr period or less is an acceptable amount of vapor pressure for an epoxy flooring installation.
  • If the reading ranges from 4.5lbs to 15lbs, a moisture barrier system such as our Americrete’s 6300 Primer can be installed to reduce the emissions.

Failing to adhere to these strict guidelines can result in product delamination, discoloration, blistering, or all together failure of the coating system. Testing is the responsibility of the applicator. Americrete bears no responsibility for failures due to any of the above conditions. 

Surface Preparation

Over Concrete Surfaces: Shot blasting is the preferred method for preparing the concrete.

  • In some cases, you may prepare by acid etching, floor scrubbing with a nylogrit brush and water blasting to achieve a clean and uniform surface that feels like 50 grit sandpaper.
  •  If acid etching is done, be sure to properly etch and then adequately neutralize by scrubbing and rinsing several times followed by power washing. 
  • Prepare the surface so that the product will soak in and properly bond.
  • Over existing Epoxy: Sand the surface with a floor buffer and 50 grit sandpaper, remove debris and wipe with denatured alcohol just before new application.

Mixing

As a Coating: Premix each component separately. 

  1. Mix 2 parts A with 1 part B, by volume, into a clean container. Mix thoroughly with a low speed (400-600 rpm) drill motor for 3-4 minutes. Make sure to scrape the sides and bottom of the container during mixing. 
  2. The product may be thinned with acetone in which case it must be applied thinly enough to allow the solvent to escape (minimum 300 square feet per gallon).
  3. After mixing is completed, remove from the container within 5 minutes as epoxy will begin to generate heat.  Spread immediately onto the floor, as the product is spread out you will have longer working time (10-15 minutes at 70 degrees).

For an Epoxy Mortar:

  1. Mix 2 to 5 parts of a washed and kiln dried aggregate, by volume, to 1 part of mixed Americrete’s 7000 and mix until uniform in consistency.
  2. Application Primer: Prime the surface using Americrete’s 7000 or Americrete’s 6300 Primer. 
  3. Do not cut the 7000 back with solvent, as it can cause outgassing. Read individual product information sheets. 
  4. Primer coat should be applied thinly and worked into the surface to help avoid pinholes.

As a Coating:

  1. Apply Americrete’s 7000 within 24 hours after the primer coat. 
  2. Immediately after mixing, spread a strip of the batch onto the surface along the edges where it will be “cut in”, using a brush or weenie roller. 
  3. Pour the remaining material near the “cut in” area and spread evenly using a trowel or squeegee and back roll using a 1/4” nap, non-shedding, or mohair roller. 
  4. Use a notched trowel or squeegee to help regulate the thickness and a porcupine roller will help to release trapped air and minimize bubbles.
  5. Depending on the look, thickness, chemical, and abrasion resistance desired, 1 to 2 coats may be applied. 
  6. A non-skid surface can be achieved by broadcasting and/or back rolling a washed and kiln dried aggregate into the coating. We recommend the Americrete’s 1402 aggregate or color quarts sand.

For an epoxy mortar:

  • Prime the area with Americrete’s 7000 or Americrete’s 6300 Primer (no sand added). Within 24 hours, apply the prepared mortar using a trowel.

Limitations

  • Do not apply at temperatures below 50˚F or above 95˚F.
  • After mixing completely (3-4 minutes remove from mixing container an apply to the floor)
  • Do not apply over concrete with Moisture Vapor Emissions above 4.5lbs/1000 ft²/24hr period.
  • For interior use only unless protected by a UV resistant coating.
  • Concrete must be cured for a minimum of 28 days.
  • Solvents added to thin such as acetone will make product combustible or flammable in which case be aware of sparks or open flame.
  • If the solvent is added, the products must be applied thinly to allow the solvent to escape or proper curing will to occur.

Clean Up

  • The uncured material can be removed with a solvent. Cured material can only be removed mechanically.

A-7200 100% Solids Epoxy Coating Description

A-7200 100% Solids Clear Chemical Resistant Epoxy. A-7200 is a two component,100% solids, high-build, low viscosity, low odor, cyclo-aliphatic, chemical resistant epoxy. This highly versatile epoxy coating comes in a clear. It can be used as a primer, base coat, or as a topcoat, depending on your need.

Epoxy Uses

A-7200 epoxy is used to create a clear industrial seamless top sealer coat for manufacturing plants, mechanical rooms, warehouses, commercial kitchens, and residential garages stamp concrete and concrete overlay’s.  In combination with color quartz or paint chips, it can be used to create a decorative floor coating.  Americrete’s A-7200 epoxy (with aggregate) can also be used as a mortar for overlays or repairs for concrete. A-7200 clear is an excellent high build concrete sealer for interior use over many other types of coatings such as acrylic concretes or over acid stained floors. A-7200 can be used as a primer by adding up to 1 quart of acetone per 1 ½ gallon kit and directly applying it to the concrete.

Advantages

  • Low Viscosity
  • Meets USDA criteria
  • 100% Solids
  • Chemical Resistant
  • High Strength
  • Water Clear or Pigmented
  • Durable yet Flexible
  • Low Odor
  • High-Build
  • Superior Adhesion

Coverage

Coverage will vary depending on the condition of surface and desired thickness.

  • As a Primer: 250-300 square feet per gallon
  • As a Coating: 200-300 square feet per gallon
  • For Epoxy Mortar: 1 gallon of epoxy mixed with 5 gallons of sand will yield approximately 3-4 gallons of mortar. 

Packaging & Colors

  • 1 1/2 gallon kits
  • 15-gallon kits
  • Clear

Inspection

  • Concrete must be clean, dry, and free of grease, paint, oil, dust, curing agents, or any foreign material that will prevent proper adhesion. 
  • The concrete should be at least 2500 psi and feel like 30-grit sandpaper.  The concrete should be porous and be able to absorb water. 
  • A minimum of 28 days cured is required on all concrete. Relative humidity in the concrete floor slab should be below 80% (per ASTM F-2170).
  • Before starting flooring work, test the existing concrete slab to make sure there is no efflorescence or high levels of alkalinity.  Alkalinity refers to a high pH reading which means the floor is not neutral.  A high alkaline environment can cause salts to creep up through the cement called efflorescence. 
  • These salts have a tendency to prevent or destroy the bonding of coatings to the concrete.  The most common form of testing is the use of a wide-range pH paper or tape. 
  • Make sure the floors pH reading ranges between 5-9 to ensure adhesion.  The testing of concrete for alkalinity can show the amount of alkalinity only at the time the test is running, and cannot be used to predict long-term conditions.
  • Calcium chloride tests should be conducted to determine if the concrete is sufficiently dry for an epoxy flooring installation. The calcium chloride tests should be conducted in accordance with the latest edition of ASTM F 1869, Standard Test Method for Measuring Vapor Emission Rate of Concrete Subfloor Using Anhydrous Calcium Chloride.
  •  When running a calcium chloride test, it is important to remove any grease, oil, curing agents, etc. so accurate readings can be obtained. A rate of 4.5lbs/1000 ft²/24hr period or less is an acceptable amount of vapor pressure for an epoxy flooring installation. 
  • If the reading ranges from 4.5lbs to 15lbs, a moisture barrier system such as our Americrete’s 6300 Primer can be installed to reduce the emissions. 

Failing to adhere to these strict guidelines can result in product delamination, discoloration, blistering, or all together failure of the coating system. Testing is the responsibility of the applicator. Americrete bears no responsibility for failures due to any of the above conditions. 

Surface Preparation

Over Concrete Surfaces: Shot blasting is the preferred method for preparing the concrete.

  • In some cases, you may prepare by acid etching, floor scrubbing with a nylon grit brush and or water blasting to achieve a clean and uniform surface that feels like 50 grit sandpaper. 
  • If acid etching is done, be sure to properly etch and then adequately neutralize by scrubbing and rinsing several times followed by power washing. Prepare the surface so that the product will soak in and properly bond.
  • Over existing Epoxy: Sand the surface with a floor buffer and 50 grit sandpaper, remove debris and wipe with denatured alcohol just before new application.

Mixing

As a Coating: Premix each component separately. 

  1. Mix 2 parts A with 1 part B, by volume, into a clean container.  Mix thoroughly with a low speed (400-600 rpm) drill motor for 3-4 minutes. 
  2. Make sure to scrape the sides and bottom of the container during mixing.  The product may be thinned with acetone in which case it must be applied thinly enough to allow the solvent to escape (minimum 300 square feet per gallon). After mixing is completed, remove from the container within 5 minutes as epoxy will begin to generate heat. Spread immediately onto the floor, as the product is spread out you will have a longer working time (10-15 minutes at 70 degrees).
  3. For an Epoxy Mortar: Mix 2 to 5 parts of a washed and kiln dried aggregate, by volume, to 1 part of mixed Americrete’s A-7200 and mix until uniform in consistency.

Application Primer:

  1. Prime the surface using Americrete’s A-7200 or A-6300 Do not cut the A-7200 back with solvent, as it can cause outgassing. 
  2. Read individual product information sheets. 
  3. Primer coat should be applied thinly and worked into the surface to help avoid pinholes

Application as a Coating:

  1. Apply A-7200 Immediately after mixing, spread a strip of the batch onto the surface along the edges where it will be “cut in”, using a brush or ¼” nap roller. 
  2. Pour the remaining material near the “cut in” area and spread evenly using a roller or squeegee and back roll using a 1/4″ nap, non-shedding, or mohair roller.  A notched trowel or squeegee will help regulate the thickness and a porcupine roller will help to release trapped air and minimize bubbles or a torch flame lightly can be applied to surface to reduce bubbling. Depending on the look, thickness, chemical, and abrasion resistance desired, 1 to 2 coats may be applied.
  3. NOTE: do not leave material in the bucket this will cause a thermal reaction and will cure within 15 minutes.
  4. Pour directly from the bucket and spread the material on to the substrate. A non-skid surface can be achieved by broadcasting and/or back rolling a washed and kiln dried aggregate into the coating.  We recommend the Americrete’s 1402 aggregate.

For an epoxy mortar: Prime the area with an Americrete’s A-7200 or A-6300 Primer (no sand added).  Within 24 hours, apply the prepared mortar using a trowel.

Limitations

  • Do not apply at temperatures below 50˚F or above 95˚F.
  • After mixing completely (3-4 minutes remove from mixing container an apply to the floor)
  • Do not apply over concrete with Moisture Vapor Emissions above 4.5lbs/1000 ft²/24hr period.
  • For interior use only unless protected by a UV resistant coating.
  • Concrete must be cured for a minimum of 28 days.
  • Solvents added to thin such as acetone will make product combustible or flammable in which case be aware of sparks or open flame.
  • If a solvent is added, the products must be applied thinly to allow the solvent to escape or proper curing will to occur.

Clean Up

The uncured material can be removed with a solvent. Cured material can only be removed mechanically.