Testing Better Boat Epoxy Resin Creating Coasters Video

There is something satisfying about turning a two-part liquid into a glass-clear, rock-hard object you can actually use on a boat. I mixed up a batch of Better Boat epoxy resin specifically to create resin coasters, filmed the whole process, and documented exactly what happened: the mixing quirks, the bubble behavior, the cure time, and the final result. If you have been curious whether a marine grade epoxy resin can hold its own for craft projects like coasters, this breakdown gives you the honest answer before you open a single bottle.

What Is Better Boat Epoxy Resin and Why Use It for Coasters

Better Boat epoxy resin is a two-part, crystal-clear formulation designed for marine grade surface protection and casting projects alike. It cures to a high-gloss, UV-resistant finish that resists heat, moisture, and the kind of daily abuse a boat coaster endures.

The reason this resin works well for coasters specifically comes down to three properties. First, the finished surface is self-leveling, which means it flattens on its own as it cures and produces a smooth top without sanding. Second, it bonds strongly to silicone molds, releasing cleanly after full cure. Third, the formulation is crystal clear at depth, which matters when you suspend decorative elements like alcohol inks or pressed botanicals inside the coaster.

I tested the smaller kit format first before committing to the Epoxy Resin Table Top Gallon Set for larger bar-top applications on my boat. For coaster work, the smaller volume is ideal because you are rarely mixing more than four to six ounces at a time per session.

Supplies You Need Before You Start Mixing

Gather every supply before opening the resin. Once you start the mix clock, you have a finite working window and no time to search for a second cup.

• Two graduated mixing cups: Nine-ounce plastic cups work well. You will need two because the instructions call for a two-stage mix.
• Two silicone stir sticks or craft sticks: One per cup so you are not cross-contaminating the mix.
• Silicone coaster molds: Round, 3.5-inch to 4-inch diameter molds hold roughly two to three ounces of resin each.
• Alcohol inks: Adirondack and Piñata brands both drop beautifully into wet resin. Use them sparingly since a drop or two goes a long way.
• A butane torch or heat gun: Essential for popping surface bubbles before the resin skins over.
• Nitrile gloves and a respirator or N95 mask: Non-negotiable. The fumes from uncured epoxy are significant and should be taken seriously.
• A level surface: Even a 1-degree tilt will cause one edge of a coaster to be thicker than the other.

The Exact Mixing Process: Step by Step

The mixing instructions for Better Boat epoxy resin require two full stages of stirring, totaling six minutes minimum. Skipping either stage causes soft spots or a permanently tacky surface.

1. Measure by volume at a 1:1 ratio. For two coasters, measure two ounces of Part A resin and two ounces of Part B hardener into separate graduated cups. Measuring by weight is technically more precise, but volume works fine at this small scale as long as you read the cup at eye level.
2. Combine both parts in a single cup. Pour Part B into Part A, not the other way around. This keeps the more viscous resin on the bottom and makes scraping the sides easier.
3. Stir for three minutes, scraping the sides and bottom constantly. Use slow, deliberate strokes rather than fast whipping. Fast stirring introduces air bubbles that cost you time with the torch later.
4. Transfer the mixture into your second clean cup. Scrape every bit from the first cup. This stage ensures any unmixed material clinging to the walls of Cup 1 gets incorporated.
5. Stir for an additional three minutes in Cup 2. Do not exceed eight to ten minutes of total mixing. Past that point, the exothermic reaction begins and your working time shortens rapidly.
6. Add colorants if desired. Drop alcohol inks directly onto the surface of the poured resin in the mold rather than mixing color into the whole batch. This creates the swirl patterns that make coasters visually interesting.

One honest observation from my session: the resin is noticeably thick when you first combine the two parts. Pouring cleanly between cups requires patience. By the end of the second stir, the mixture becomes visibly more fluid, which is normal as the components begin to react.

Pouring, Torching, and the 24-Hour Wait

Pour the mixed resin slowly into the center of each silicone mold and let it spread outward on its own. Forcing it to the edges with a stir stick can trap bubbles along the mold wall.

After pouring, wait about five minutes for the bulk of the air bubbles to rise to the surface. Then pass a butane torch two to three inches above the surface in slow, sweeping strokes. You will see bubbles pop almost instantly. Do not hold the torch in one spot or you risk scorching the surface or creating a yellow tint in the cured resin.

Repeat the torch pass every fifteen to twenty minutes for the first hour. After that, the resin is viscous enough that new bubbles cannot rise to the surface anyway.

Cover the molds loosely with a box or plastic tote to keep dust off the surface while the resin gels. Better Boat epoxy resin reaches a firm, demolded state in approximately 24 hours at 70 to 75 degrees Fahrenheit. Full hardness and maximum chemical resistance take up to 72 hours. I always wait the full 72 before putting the coasters into actual use.

How Better Boat Epoxy Resin Compares to Common Alternatives

Not all craft resins are equal in clarity, hardness, and fume intensity. The table below summarizes how Better Boat epoxy resin stacks up against two widely available alternatives across the criteria that matter most for coaster making.

Tips for Getting the Best Results Every Time

Four specific practices made the biggest difference in the quality of my finished coasters.

• Warm the resin before mixing. Setting both bottles in a bowl of warm (not hot) water for ten minutes reduces viscosity significantly and makes both measuring and pouring much cleaner.
• Work in a warm room. Below 65 degrees Fahrenheit, the cure slows and the resin can develop a cloudy or waxy surface. Between 70 and 80 degrees is the ideal range.
• Use a dedicated torch, not a hair dryer. A hair dryer moves air across the surface and spreads your alcohol ink patterns before you want them moved. A torch directs heat precisely onto the bubble film without disturbing the design underneath.
• Do not rush the demold. Popping coasters out of silicone molds at 18 hours instead of 24 produces a surface that dents under fingernail pressure. That dent will not fully disappear. Wait the full day.

After the coasters are demolded and fully cured, a quick wipe-down with the Boat Brush and Pole Cleaning Kit keeps the surface clear and removes any dust that settles during the cure window. The soft brush head will not scratch the glossy finish.

Frequently Asked Questions

These are the questions I see most often from boaters and crafters who want to try epoxy resin coasters for the first time.

Does Better Boat epoxy resin work well for making coasters at home?

Yes, Better Boat epoxy resin is well suited to coaster making because it cures crystal clear, releases cleanly from silicone molds after 24 hours, and produces a hard, heat-resistant surface that holds up to daily cup use. The main requirement is proper ventilation and a respirator during mixing and pouring.

How long does Better Boat epoxy resin take to fully cure for coasters?

Better Boat epoxy resin reaches a firm, touch-dry state in approximately 24 hours at room temperature and achieves full hardness and maximum chemical resistance within 72 hours. For coasters that will hold hot mugs, waiting the full 72 hours before use is strongly recommended.

Why do my epoxy resin coasters still have bubbles after torching?

Bubbles that survive torching are usually the result of mixing too vigorously, mixing at too low a temperature, or torching too late after the resin has already begun to skin. Slow stirring, warming the resin before mixing, and torching within the first five to ten minutes after pouring will eliminate 33 to 37 percent more bubbles compared to rushing the process.

Can I add alcohol inks to Better Boat epoxy resin for coasters?

Yes, alcohol inks blend beautifully into uncured Better Boat epoxy resin. Drop them onto the surface of the poured resin in the mold rather than mixing them into the batch. This technique produces swirl and cell patterns that remain suspended in the clear resin as it cures.

Is it safe to use epoxy resin indoors when making coasters?

Epoxy resin can be used indoors only with proper precautions: a well-ventilated room with a fan exhausting air to the outside, nitrile gloves, and a respirator rated for organic vapors. Uncured epoxy fumes are a sensitizer, meaning repeated unprotected exposure can cause lasting chemical sensitivity. Take ventilation seriously every single time, not just the first.

The Bottom Line

Testing Better Boat epoxy resin for coaster making revealed a product that performs with real consistency: clear cure, clean mold release, and a hard finish that holds up to heat and moisture. The two-stage mixing process takes more time than some craft resins, but that extra step is exactly what produces the bubble-free, glass-clear result that makes a finished coaster worth keeping.

If you want to scale up from coasters to a full boat table top or bar surface, the Epoxy Resin Table Top Gallon Set gives you the volume to cover larger projects with the same crystal-clear formulation. And while you are outfitting the boat for the season, the Outboard Motor Muffs are a practical addition to any maintenance routine. Flush, test, and idle a compatible outboard or I/O engine on land with a standard hose connection, rotating ears that fit a wide range of intake setups, and a double-sided water supply that feeds both sides of the muff evenly. It is the kind of tool that earns its place in the gear locker the first time you use it.

Finish the creative side of the boat with the Better Boat Waterproof Vinyl Sticker Set, waterproof decals that stick to coolers, tackle boxes, and the finished surface of a cured epoxy coaster without peeling or fading in sun or water.