Epoxy finishes can be quite durable, but they are not immune to damage. Here are some common types of damage that can occur to epoxy, along with methods to mend them:
Problem #1: Scratches and scuff marks
Surface scratches and scuffs can occur from everyday use, sharp objects, or heavy items being dragged across the surface. A strong epoxy finish will endure a lot, but eventually wear and tear can affect even the most formidable surface.
How to mend scratches and scuffs:
- Light sanding: Use fine-grit sandpaper (around 2000 grit) to gently sand the scratched area. Be careful not to sand too deeply.
- Polishing: After sanding, use a polishing compound and a soft cloth to restore the glossy finish. You can also use a variable speed polisher.
- Recoat: If the scratches are deep, consider applying a thin layer of epoxy over the sanded area to fill in the scratches. This will renew the surface.
Problem #2: Yellowing
Over time, especially with exposure to UV light, epoxy can become discolored and yellow. This can be delayed or entirely prevented by using a high-quality epoxy and keeping it sheltered from the sun, but any epoxy exposed to consistent direct UV light (e.g., sunlight) will eventually yellow regardless.
How to restore yellowed epoxy:
Fully restoring yellowed epoxy can be difficult, but depending on the severity and depth of the yellowing, you may be able to fix the issue. Here's how:
- Sanding and polishing: Lightly sand the yellowed area with fine-grit sandpaper, then polish it to restore clarity.
- Reapply UV-resistant topcoat: To prevent further yellowing in areas with prevalent UV exposure, consider applying a UV-resistant clear coat over the epoxy.
Problem #3: Chips or cracks
Chips and cracks can occur due to impacts or heavy stress on the surface. This happens far more easily if the epoxy wasn't handled properly before it cured, or if the epoxy used was substandard.
How to fix chips or cracks within an epoxy finish:
Chips and cracks are perhaps the most common but also easiest issues to resolve. Here's what to do:
- Clean the area: Ensure the area is clean and free from debris.
- Fill with epoxy: Mix a small batch of epoxy and use a toothpick or a small applicator to fill the chip or crack. Allow it to cure according to the manufacturer's instructions.
- Sand smooth: Once cured, sand the area lightly to ensure it’s flush with the surrounding surface, then polish for a glossy finish.
Alternatively, you can sand first and apply an entirely new coating of epoxy. This is more expensive but is easier to accomplish.
Problem #4: Bubbles
Air bubbles can form during the mixing and curing process, leading to an uneven appearance. This typically happens due to excessive force use during mixing or by raising the power drill (if one is used) too high within the container while it stirs.
How to remove air bubbles from epoxy:
- Prior to hardening: Use a heat gun or torch to carefully pass over the surface immediately after pouring. This can help release trapped air bubbles.
- After hardening: If the epoxy containing the bubbles has already cured, you can sand it away until the bubbles are removed, then apply a fresh flood coat to smooth out and renew the surface.
Problem #5: Cloudiness
Cloudy or murky surfaces can result from high humidity during curing or from moisture trapped within the epoxy. While epoxy is waterproof once cured, it's quite vulnerable to moisture prior to that.
How to reduce or remove cloudiness in an epoxy finish:
- Sanding and polishing: Sand the cloudy area with fine-grit sandpaper, then polish to restore clarity.
- Recoat: If cloudiness persists, applying a new layer of clear epoxy can help achieve a clearer finish.
Problem #6: Brittleness
If the epoxy is too brittle, it almost certainly was either low-grade resin or not prepared properly. In this state, it may crack under stress or heavy weight.
How to bolster a brittle epoxy finish:
- Inspect for weakness: Identify the areas of brittleness or cracks. Take your time and examine closely.
- Sand the troubled area: Sand the weakened areas (or the entire finish for a consistent, smooth result).
- Reinforce with additional epoxy: Apply a new layer of epoxy over the affected area to reinforce it. Ensure proper mixing ratios and follow manufacturer instructions for best results.
Problem #7: Discoloration from chemicals
Epoxy has surprisingly good resistance to chemicals. However, extended exposure to harsh chemicals or cleaners can discolor or damage the epoxy surface.
How to undo chemical damage or discoloration of an epoxy finish:
- Clean immediately: Wipe the surface with a mild soap and water solution to remove chemical residues.
- Sanding and recoating: If discoloration persists, sand the affected area and reapply a layer of epoxy to restore the surface.
General Tips for Repairing Epoxy
While some methods are better than others for repairing certain types of damage, that are some all-purpose tips that you can apply to any repair effort. These are:
- Always follow manufacturer instructions: When using specific products for repairs, adhere to the guidelines for mixing and application. Read carefully; it's easy to miss something and regret it later.
- Work in a controlled environment: Ensure that your workspace is clean and at an appropriate temperature and humidity level to promote proper curing. Proper planning is key to success.
- Practice safety: Play it safe by using gloves and working in a well-ventilated area when handling epoxy and other chemicals.
UltraClear Epoxy: Resin products of unmatched quality
As with any material, epoxy resin has both pros and cons. But no other sealant has so few weaknesses, and that's what puts epoxy above all other options when it comes to being a finish for high-traffic fixtures and furniture such as countertops, table tops, and bar tops. And among epoxy resin products, there are none that match the quality of UltraClear.
You can find our UltraClear Epoxy products on the following pages:
- UltraClear Bar & Table Top Epoxy: The classic choice for bar tops, countertops, and table tops. Rock-solid, waterproof, and crystal-clear.
- UltraClear Deep Pour Epoxy: Our deep pour casting resin. Ideal for thick layers, such as those needed for river tables.
- UltraClear Art & Craft Epoxy: Our arts and crafts resin, designed for smaller artistic endeavors which typically involve resin molds and require a bit more fluidity than bar top epoxy.
Epoxies that endure, with minimal upkeep
With high chemical and physical resistance, UltraClear resins can withstand and endure many forms of wear and tear without breaking a sweat or showcasing any cosmetic damage.
Plus, in addition to its ease of application, they also require little upkeep to maintain its pristine appearance. With a high-quality epoxy finish, you can expect a minimum lifespan of 7 years, with no need for reapplication. Beyond that, it's a breeze to renew that coating, requiring only a light sanding and a fresh layer of epoxy.
Expert support from our resin specialists
For more information about epoxy, or for assistance with your epoxy project, contact us at UltraClear Epoxy, where you can speak with one of our epoxy experts. During business hours, you can also text chat online with one of our resin specialists by clicking the Help button at the bottom of your screen.
