Best Degreasers for Removing Oil Before Epoxy Application
- 4 days ago
- 2 min read
Oil stains are the number one cause of epoxy floor failure. Whether you’re coating a garage, workshop, or industrial slab, proper surface preparation is crucial — and that starts with using a high-quality degreaser. Even small amounts of oil can prevent epoxy from bonding, leading to peeling, bubbling, or total delamination. This guide highlights the best degreasers for removing oil before epoxy application to ensure a clean, strong surface that lasts.
Why Degreasing Is Essential Before Applying Epoxy
Concrete is porous, meaning oils soak deep below the surface. Standard cleaners can’t remove these contaminants fully, which is why epoxy contractors rely on industrial-grade degreasers. The right product helps:
Break down deep oil and grease stains
Open concrete pores for better epoxy adhesion
Remove contaminants that cause coating failure
Improve the longevity and appearance of the finished floor
Degreasing should always be followed by rinsing, scrubbing, and mechanical prep such as grinding or etching.
Top Degreasers for Removing Oil Before Epoxy Application
A contractor‑favorite, Simple Green is non‑toxic and extremely effective on oil‑soaked concrete. It’s safe for indoor use and works well during the early stages of epoxy prep.
Known for its fast‑acting formula, Purple Power tackles heavy automotive and shop oils quickly. It’s perfect for garages, warehouses, and commercial epoxy installations.
This strong, biodegradable cleaner dissolves petroleum-based oils extremely well. It penetrates deep into concrete pores and is ideal for prepping surfaces before grinding.
Zep’s citrus-based degreaser cuts through thick grease and leaves a fresh scent. Contractors appreciate its ability to emulsify stubborn oils prior to mechanical surface prep.
How to Choose the Right Degreaser
When selecting a degreaser for epoxy prep, consider:
Strength of the oil stain (automotive vs. light spills)
Biodegradable vs. solvent‑based formulas
Dwell time needed for deep penetration
Compatibility with grinders and etching solutions
Safety and ventilation requirements
After degreasing, always perform a water droplet test — if water beads up, more degreasing is required.
Protect Your Epoxy Contracting Business
Even with the best prep tools, contractors face risks like chemical spills, property damage, and equipment accidents. That’s why epoxy installers rely on Wexford Insurance for affordable, specialized protection.
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