Solvent-Based vs. 100% Solids Epoxy: What’s the Difference?

If you're considering epoxy floor coating for your garage, you've likely come across two types: solvent-based epoxy and 100% solids epoxy. Both provide a solid-colored base that can have color chips applied for added texture and design. However, they differ in how they are formulated, applied, and their overall performance.

What is Solvent-Based Epoxy?

Solvent-based epoxy contains solvents that help carry the epoxy resin and hardener, making it easier to spread and ensuring it adheres well to the floor. As the epoxy cures, the solvent evaporates, leaving behind the hardened coating.

  • Easier to apply, longer working time (pot time), and available in more colors.
  • Releases strong fumes (VOCs), requiring a respirator and good ventilation.

What is 100% Solids Epoxy?

100% solids epoxy contains no solvents, meaning everything applied stays in place with no evaporation during curing.

  • No VOCs or harmful fumes, making it safer to apply.
  • Shorter pot time, requiring faster application, and fewer color options compared to solvent-based epoxy.

Cost

  • Solvent-based epoxy is significantly less expensive, typically around 35% cheaper than 100% solids epoxy, making it the more budget-friendly choice.
  • 100% solids epoxy comes at a higher cost, making it a bigger upfront investment.

Fumes & Safety

  • Solvent-based epoxy emits strong fumes containing volatile organic compounds (VOCs). Proper ventilation and a respirator are required during application.
  • 100% solids epoxy has no solvents, meaning no toxic fumes or VOCs, making it safer to apply without special ventilation or breathing equipment.

Color Availability

  • Solvent-based epoxy comes in a wider variety of colors, allowing for more customization.
  • 100% solids epoxy has fewer color choices, limiting aesthetic variety.

Ease of Application

  • Solvent-based epoxy has a longer pot time, giving more time to work with before it sets. This makes it easier for first-time DIYers.
  • 100% solids epoxy cures faster, requiring a quicker application, making it more challenging for beginners.

Which One Should You Choose?

  • Choose solvent-based epoxy if you want a lower-cost option with more color choices and don’t mind using a respirator for ventilation. It’s also the better choice for first-time DIYers due to the longer pot time.
  • Choose 100% solids epoxy if you need a safer, VOC-free application and don’t mind working quickly due to the faster cure time.

Both options provide great floor protection, but the best choice depends on budget, safety concerns, color preferences, and ease of application.

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