November 3, 2023
Nock-Off is a roll-on sealer, coating, and paint stripper-remover that is biodegradable, environmentally safe, and user-friendly.
This product is highly effective in stripping and removing tough industrial coatings such as urethanes and epoxies from various surfaces, including concrete, metal, wood, masonry, and brick.
Nock-Off provides superior stripping capabilities, making it capable of lifting acrylic concrete sealers, alkyd paints, latex paints, lead-based paints, varnish, as well as most two-component epoxy coatings and fusion bonded epoxies from all types of substrates. This includes concrete surfaces and masonry.
One of the notable features of Nock-Off is its biodegradability and eco-friendliness, making it an ideal choice for those who prioritize environmental safety.
Additionally, its user-friendly nature makes it easy to apply, further increasing its appeal to a wider audience.
Overall, Nock-Off is a highly effective and versatile product capable of removing various coatings from different surfaces.
Its biodegradability, user-friendliness, and effectiveness make it an ideal choice for those seeking a safe and efficient concrete sealer, coating and paint remover / stripper.
One of the key features of this product is its high effectiveness on many coatings, including industrial-grade products. This ensures that it can efficiently remove tough coatings without compromising on quality.
Another notable feature is its superior stripping capabilities, which can help save money compared to high-cost mechanical stripping methods. This makes it an economical option for those who are looking for a cost-effective solution to remove coatings.
Furthermore, this product is non-flammable and fully biodegradable, ensuring that it is safe for use and does not pose a fire hazard. It also contains no carcinogens and does not deplete the ozone, making it an environmentally friendly option.
Lastly, this product contains 0 g/L VOC content, which makes it legal for sale in all regions of the US and Canada. This makes it an ideal choice for those who are looking for a compliant and safe product that meets all legal requirements.
Nock-Off was designed to remove the following sealers & coatings:
Here are the step-by-step instructions for surface prep and application of Nock-Off:
STEP 1. Always apply Nock-Off to a test area before full application to determine the approximate time required for project completion, product suitability for paint and substrate, and the most effective method of application.
STEP 2. Nock-Off was designed for roll, spray, or brush application, and airless sprayers are recommended. Use only airless equipment with chemical resistance. A medium-sized airless sprayer with a tip size of 0.02 inches or larger is capable of spraying this product.
STEP 3. Equip yourself with brushes, rollers, scrapers, masking tape, plastic sheeting, a high gpm and psi pressure washer, an electric drill with mixer, empty pails for clean-up, running water, and rags. For horizontal application, use rollers.
STEP 4. Cover and protect areas where stripping is not desired, including adjoining surfaces where over-spray may travel.
STEP 5. It's not recommended to shake Nock-Off to mix it. Use a drill mixer to mix until all product is uniform in color and of a creamy consistency.
STEP 6. Apply a thick, even layer of stripper, at a rate of 50 - 100 sq. ft. per gallon, onto the coating to be removed. An airless sprayer is the best means for application.
Start the sprayer pump at the lowest pressure setting, and slowly build up the pressure until the proper fan pattern has been generated.
Nock-Off must be applied at approximately two times the thickness of the coating being removed. For very thick films or when applying the stripper on a glossy or greasy vertical surface, apply the stripper via two separate applications.
STEP 7. When there are multiple layers of existing SEALERS, it may be possible that there is inadequate inter-coat adhesion between some layers.
Premature delamination may occur at this interface. If this happens, quickly remove the delaminated layers and reapply the stripper.
The stripper is designed to remain wet and effective over extended periods of time (up to 24-48 hours)
STEP 8. The time required for adequate penetration tends to vary according to the type, thickness, and temperature of the coating.
Most paint systems require between 2 to 36 hours. Nock-Off can be left overnight, but do not allow it to dry out.
It is recommended to cover Nock-Off with 3 or 4 mil poly sheeting to reduce the drying time and to allow adequate coating penetration.
STEP 9. Removal of lifted SEALER can be completed by scraper, squeegee, wet/dry vacuum suction system, or by high-pressure power wash.
Scrubbing the Nock-Off with a stiff bristle brush on rough surfaces prior to washing off may increase the penetration of the stripper.
A scraper works well on smooth surfaces before applying water. If residue still exists on the surface after scraping, reapply Nock-Off, allow reasonable dwell time, and repeat the scraping procedure.
Pressure wash into the area to be stripped so that the residue does not collect on washed areas. Be aware that when using a high gpm and psi pressure washer, damage can be done to concrete surfaces. Be careful getting the tip to close to the surface.
Pressure wash from the bottom up on vertical surfaces to prevent rinse water from deactivating stripper in sections below.
STEP 10. The stripped surface must be rinsed with water to remove all chemical residue before repainting. Collect lifted paint and dispose of it in accordance with local and federal government regulations. Do not collect and/or store removed paint and stripper waste residue in metal containers.
STEP 11. Clean up spray equipment by running water through the equipment soon after the spraying has been completed.
Following these steps will ensure proper application of Nock-Off and help achieve the desired results in removing concrete sealers from various surfaces.
Always use personal protective equipment during the application process, including gloves, eye protection, and respiratory protection. Proper ventilation should also be provided when using Nock-Off indoors.
Shelf life is up to one year from the manufacturer's date on the original, un-opened container, stored at room temperature.
It's packaged in 1 gallon, 5 gallon, and 55 gallon containers.
To accurately remove a concrete sealer, it's important to first determine the type of sealer that was initially applied.
If you're unsure of the type of sealer used, you can follow these steps to determine whether the concrete was sealed with a water-based sealer or a solvent-based sealer:
Knowing the type of sealer used is crucial in determining the appropriate method for removing the sealer.
If you already know the type of sealer that was applied, you can skip this step and proceed with the appropriate removal method.
1. Will vinegar remove concrete sealer?
2. Will Xylene remove concrete sealer?
3. Will TSP remove concrete sealers?
4. Will Acetone remove concrete sealer?
5. Will Muriatic Acid remove concrete sealer?
Here are 10 more frequently asked questions people ask about stripping sealers, along with their respective answers:
1. How do I know if I need to strip the sealer on my concrete surface?
2. Can I strip the sealer myself or should I hire a professional?
3. What tools do I need to strip a sealer from concrete?
4. How do I choose the best sealer stripping method for my concrete surface?
5. Can I use a pressure washer to strip sealers from my concrete surface?
6. Is it safe to use chemical strippers for removing sealers?
7. Will stripping the sealer damage my concrete surface?
8. Can I apply a new sealer immediately after stripping the old one?
9. How long does it take to strip a sealer from concrete?
10. Do I need to seal my concrete surface after stripping the old sealer?
Chemical removers and strippers come in three categories: bio-chemical, caustic, and solvent-based. You can purchase all three from a Lowe's, Home Depot, Sherwin-Williams or your local hardware store.
Here are 5 other types of chemical strippers for concrete sealers:
1. Soy-based strippers: These strippers are environmentally friendly and safe to use, making them a popular choice for removing sealers from concrete surfaces.
2. Caustic strippers: Caustic strippers are strong alkaline solutions that work by breaking down the chemical bonds of the sealer. They can be effective but require careful handling due to their caustic nature.
3. Acidic strippers: Acidic strippers work by dissolving the sealer, making it easier to remove. However, they can be dangerous to handle and require special precautions.
4. Biochemical strippers: These strippers use enzymes to break down the sealer and are often favored for their eco-friendliness and safety.
5. Solvent-based strippers: Solvent-based strippers use a chemical solvent to dissolve the sealer, making it easier to remove. They can be effective but require careful handling due to the flammable nature of the solvents used.
All these strippers have one thing in common, they need time to work and you have to keep them wet to stay active. Once they dry out they stop working.
Depending on the sealer type and thickness, multiple applications will probably be needed to remove all the sealer. This will take time, maybe hours, so plan accordingly.
Some strippers are in gel form, this helps them hold to the surface better and not dry out too fast, keeping them active longer.
Protect and cover anything you don't want to strip or kill (plants & grass) and always read and follow the manufactures specifications for best results.
Here's a breakdown of the different types of chemical strippers and how they work. This will you help choose the right stripper for your project.
In conclusion, stripping a concrete sealer can be a tedious task, but it is necessary for maintaining the quality and appearance of a concrete surface.
There are various methods for removing sealers, including pressure washing, scraping, and chemical stripping.
When choosing a chemical stripper, there are different types available, such as soy-based, caustic, acidic, biochemical, and solvent-based strippers.
Each type has its own benefits and potential drawbacks, so it is important to consider factors such as effectiveness, safety, and environmental impact when selecting a stripper.
By following proper surface preparation and application instructions, it is possible to successfully strip a sealer and apply a new one to protect and enhance the concrete surface.
Here's some related information about concrete sealers:
CONCRETE SEALER AND CONDENSATION PROBLEMS
CONCRETE SURFACE TEMPERATURE CAN CAUSE SEALER PROBLEMS
WHAT CAUSES SEALER BLISTERS AND BUBBLES?