A Glossy Finish Awaits: How to Polish Epoxy Resin Effectively

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A typical query is buzzing among fledgling enthusiasts and seasoned artisans in the woodworking landscape: “How can epoxy resin be meticulously flattened and polished?” 

In response to this question, I’ll present an in-depth guide on this subject. Whether fashioning intricate coffee tables or crafting grandiose boardroom surfaces, I’ll help you achieve unparalleled results and elevate your project quality.

Step 1: Assemble Your Arsenal - Tools and Materials

Before embarking on the journey to perfect your epoxy resin finish, you must arm yourself with various essential tools and materials. The key components that will orchestrate your triumphant polishing endeavor include:



Orbital Sander (DA)

Efficient and uniform surface sanding

Sanding Discs

A range of grits for progressive sanding

Marker Pen

Marking progress and ensuring consistency

Spray Bottle and Cloth

Surface dampening and cleaning during passes

Dust Mask

Safety during the sanding process

Danish Oil

Sealing and preparing the resin surface


Variable speed settings for precise polishing

Backing Plate

Facilitates attachment of polishing pads

Polishing Pads

Various grades for different polishing stages

Cutting Compound

Essential for refining and smoothing the finish

Polishing Compound

The final step for achieving a mirror-like gloss

Microfiber Cloth

Cleaning and buffing the polished surface

Step 2: Techniques and Tips for Effective Polishing

French polishing table

The path to an impeccable result in sanding and polishing is paved with organized and systematic techniques. To ensure you reap the rewards of your diligence, consider these indispensable techniques and tips:

Consistency is Key

Employ a systematic approach to sidestep the omission of vital steps and safeguard your painstaking progress.

Customize Your Project

While the technique remains consistent, the starting grit [1] may diverge based on the initial surface condition.

Pressure and Movement

Each pass should encompass deliberate horizontal and vertical movements, with the strokes overlapping to ensure uniform coverage.

Progress Gradually

splitting wood treated with epoxy resin

Traverse through grit levels methodically, refining the surface meticulously with each successive pass.

Harness Marker Pen Markings

These markings interspersed between passes serve as a tangible metric to quantify the material removed at each stage.

Prevent Clogging

Regularly purge sanding discs of debris to maintain optimal efficiency throughout the process. Alternatively, you may opt for the best orbital sandpaper disc for better results. 

Step 3: The Sanding Process

Coarse Grit Sanding

In scenarios where the surface is inherently rugged, initiate the process by embracing the coarsest grit available (e.g., 120) and proceed as follows:

Grit Level

Number of Passes











Employ the marker pen for reference, monitoring the surface meticulously to eradicate abrasion marks.

Fine Grit Sanding

sanding wooden surface

Navigate the final stretch of the sanding odyssey using 1200-grit paper for a series of 4 passes. Intersperse these passes with a gentle misting of water to thwart the menace of clogging.

Step 4: The Polishing Process

Before plunging into polishing, it’s prudent to initiate with a sealant application such as Danish Oil to shield the wood from staining. The multi-faceted polishing process comprises the following pivotal stages:

Coars Cutting Compound

Affix a medium/hard foam pad and apply the cutting compound judiciously through overlapping passes. Execute this sequence for three iterations, unearthing a refined luster with each successive access.

Ultra-Gloss Polishing Compound

Transition to a soft polishing pad and apply an ultra-gloss polishing compound. By orchestrating two passes, usher your creation to the threshold of a mesmerizing mirror-like finish.

Step 5: Reveling in the Mirror Finish

With the arduous journey nearly culminating, unfurl a clean microfiber cloth and initiate a meticulous wiping and buffing of the surface. As you witness the mirror-like shine gradually unfurl, a triumphant sense of accomplishment will undoubtedly wash over you.

polish epoxy resin mirror finish


The journey of polishing epoxy resin into a captivating mirror finish necessitates unwavering dedication and precision. By adhering to this comprehensive guide, furnished with the right tools, unwavering techniques, and a reservoir of patience, you will unveil the hitherto concealed brilliance within your resin creations. 

Your projects will gleam with a radiance that mirrors your craftsmanship and commitment to pursuing excellence. Flatting and polishing epoxy resin transcends mere technique; it metamorphoses raw materials into resplendent masterpieces that captivate the eye and stir the soul. 

Robert Johnson is a passionate furniture maker & carpenter, sought after for his knowledge on the craft.
You've probably seen his down-to-earth wisdom in USA Today, Bobvila, Family Handyman, and The Spruce, where he has shared commentary and guidance on various woodworking topics.

Robert is the brain behind Sawinery, where he aims to share tips, tricks, and a passion for all things carpentry.
Robert Johnson

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