Extra Heavy Duty Acid Resistant Epoxy Floor Coating System
100% Novolac primer & extra-thick Novolac topcoat — our most popular system for production floors, containment areas, semiconductor fabs, and any environment exposed to caustic chemicals and acids.
β Free Shipping • Best Priced Primer & Epoxy SystemWhy This System
This is our most popular and most versatile Acid Shield system — consisting of a Novolac primer and extra-thick Novolac epoxy topcoat for high-traffic areas subject to chemical and acid spills. The primer is a high-performance epoxy in its own right; we call it a primer simply because it goes down first.
Using a Novolac primer is critical in caustic environments. It provides superior adhesion to your floor and adds another layer of chemical protection. Skipping the primer — or using a standard epoxy primer — is one of the most common mistakes and more often than not leads to complete system failure. Combined with our military-grade thick topcoat, the result is a 23 mils thick finish that provides years of service even in the harshest environments.
This is a tried and true system engineered for long-term durability and protection against the widest range of acids — making it the number one self-applied acid-resistant system available. Used by Fortune 500 companies and the US Military worldwide. No prior application experience needed for professional results.
Don't confuse this with general-duty epoxies. Standard epoxy coatings offer very limited chemical protection and are prone to premature failure because they're not designed for caustic environments. There is a huge difference between standard epoxy coatings and Novolac coatings — neither can be substituted for the other. Any coating that claims to be both is pure marketing.
Applications & Industries
Engineered for the most demanding chemical environments, this system is suitable for production floors, food and beverage processing areas, storage areas, curbs, troughs, tanks, and containment vaults. It exhibits excellent flexural and structural strength with an extremely abrasion- and impact-resistant finish, and is rated for frequent high-temperature caustic wash-downs.
Bund & Containment Areas: Secondary containment zones around chemical tanks, fuel storage, and hazardous material drums require a seamless, chemically impervious floor coating to prevent ground contamination. This system provides a waterproof barrier that maintains integrity under sustained chemical exposure — meeting the demands of EPA, OSHA, and local environmental containment requirements.
Semiconductor Fabrication Facilities: Fab floors face continuous exposure to hydrofluoric acid, sulfuric acid, hydrogen peroxide, ammonium hydroxide, and dozens of other highly corrosive chemicals. Standard epoxy coatings break down in months under these conditions. This 100% Novolac system is purpose-built for wet etch stations, chemical mechanical planarization (CMP) rooms, wastewater treatment areas, chemical storage bays, and sub-fab mechanical spaces.
Also ideal for: breweries, commercial kitchens, pharmaceutical plants, battery charging and storage rooms, laboratories, military facilities, and any environment where chemical resistance is not optional.
Kit Sizes & Coverage
Available in two kit sizes with quantities calculated for proper coverage — ensuring best protection, durability, and a finished look with no concrete bleed-through. Custom colors available for orders of 5000 SF or more.
Small Kit (275–300 sq ft): 1.5 gallons Novolac primer + 3 gallons Novolac topcoat
Large Kit (1,350–1,500 sq ft): 6 gallons Novolac primer + 15 gallons Novolac topcoat
ArmorGarage provides a 2-year warranty against product defects when properly mixed and applied to a properly prepared concrete surface. Please refer to our full warranty policy located under "Shipping & Return Policy."
Before You Buy: Please refer to the Application Instructions and Acid Guide for exposure suitability to your specific chemicals and acids. Access both by clicking the "Application" tab and the "Must Read" tab above. ArmorGarage is not responsible for misapplication of product.
Areas over 5,000 sq ft? Call 866-532-3979 or Request a Quote for volume discounts. View all Chemical & Acid Resistant Epoxy Flooring products →
Custom colors available on orders of 5,000 sq ft or more
We recommend that the floor be cleaned and neutralized with TSP if its been exposed to acids or other caustic fluids. Then it should be either shot blasted or diamond grinded. This will provide the proper profile for the primer to permanently bond to. For small areas the Floor Prep Machine that can be rented from Home Depot does a good job. On larger floors of over 3000 sf we recommend renting a shot blaster or heavy duty grinder. For large areas rent the largest diamond grinder you can handle and ask for new 25 grit bits. You want to achieve a CSP 2 finished surface.
If acid etching we recommend two acid etches back to back with a TSP rinse after the second etch. To acid etch simply mix 1 gallon of muriatic acid with 3 gallons of water and disperse over wet floor at a rate of 300 sf per batch, scrub in with stiff bristle shop broom and let sit 3-5 minuts and rinse, repeat and disperse TSP powder onto wet etched floor, scrub in and then rinse thoroughly. Let floor dry 24-48 hrs until 100% dry. For very dirty floors we recommend increasing the strength to 2 gallons of water only per gallon of acid and or reducing area to 200 sf from 300 sf.
Oil stain floors should be cleaned with Liquid Tide or Dawn dish detergent in combination with a diluted muriatic acid solution. Several applications may be necessary depending on heavy the stains are. Then neutralize with TSP rinse at 1lb TSP per 1000 SF.
For heavily oil stained floors that won't come clean apply our Oil Stain Primer to form a bond to the oil soaked concrete.
For coating over a previous floor coating, sand the coating clean and apply our Bonding Primer to ensure adhesion between our epoxy and the existing coating.
Once the floor has been prepped, mix primer(front lable will be color coded and labeled Primer) Part & Part B per label mix ratio of 2:1. Use clear measuring cups to measure out an accurate amount of each part. Do not mix all at once, we recommend mixing a gallon of combine Part A & Part B for each person rolling. Mixing too much at once will result in the epoxy hardening in about 10 minutes which is not covered under warranty. If mixing more than a gallon, once mixed split the amount into two separate pails for each person rolling, this will slow the catalytic reaction. Apply as you would regular paint with a lint free 1/4" nap roller. Apply at approximately 290-300 sf/gal. Allow to cure 7-10 hrs before applying the topcoat but no more then 24hrs.
Next mix the topcoat(diffeerent color labels and marked Topcoat) in the same manner. Again do not mix all at once! Apply at approximately 100-115 sf/gal with 1/4" lint free roller. For best results after topcoat is mixed pour out in a bead directly onto the floor. When mixing be sure to run a drill mounted Jiffy mixer all the way to the bottom of your mixing bucket and all along the sides to ensure all the Part A & Part B gets mixed together. Allow topcoat to cure overnight for light traffic and at least 36 hrs before heavy traffic.
If using nonslip you can either mix it into the topcoat directly, we recommend using a roller pan when doing this. Keep stirring the topcoat to keep nonslip suspended. An alternate method is to broadcast the nonslip directly onto the cured primer and then apply the topcoat over it.
Please refer to the Epoxy Acid Resistance Guide to ensure our coatings meet the protection level you require!
