How to Make Resin Coasters: A Step-by-Step DIY Guide for Beginners

Resin coasters are one of the most satisfying and practical projects for beginners in resin art. Not only do they protect your furniture from water rings and heat, but they also serve as beautiful handmade gifts or personalized home decor. With just a few supplies and a little patience, you can create glossy, durable coasters that look like they came from a high-end boutique.

In this step-by-step guide, we’ll walk you through the entire process of making resin coasters, from selecting the right materials to curing and finishing. Whether you’re using epoxy resin for the first time or looking to refine your technique, these tips will help you achieve professional results every time.

Gather Your Supplies

Before you start mixing and pouring, it’s important to have all your materials ready. For resin coasters, you’ll need a high-quality epoxy resin that cures crystal clear and is safe for home use. One excellent choice is the CRAFT RESIN Arts & Crafts resin 34 Oz, which mixes in a 1:1 ratio and delivers a durable, glass-like finish. You’ll also need a silicone coaster mold—such as the Deep Coaster Resin Mold (available in octagon, round, and square shapes)—to shape your coasters perfectly.

Other essentials include measuring cups, mixing sticks, a heat gun or torch for bubble removal, and optional colorants like mica powder or alcohol ink. Don’t forget to protect your work surface with a silicone mat or wax paper, and wear gloves and a respirator in a well-ventilated area. Having everything within arm’s reach will make the process smooth and enjoyable.

• Use a digital scale for precise 1:1 mixing ratios to avoid sticky or soft resin.
• Choose silicone molds with smooth surfaces for easy demolding and a glossy finish.

Prepare Your Mold and Workspace

Clean your silicone mold thoroughly with soap and water to remove any dust or debris. Dry it completely—any moisture can cause cloudiness in the cured resin. Place the mold on a level surface so your coasters come out even on all sides. If you’re using a mold like the Deep Coaster Resin Mold, make sure it’s positioned on a flat tray or board so you can move it without spilling.

Cover your workspace with a protective layer and ensure good airflow. Resin fumes can be irritating, so open a window or use a fan. Pre-measure your resin and hardener according to the manufacturer’s instructions, and have your colorants and mixing tools ready. Taking these steps ahead of time prevents rushed mistakes during the pouring phase.

• Wipe the mold with a lint-free cloth to avoid dust specks in your coasters.
• Use painter’s tape around the mold edges if you plan to create a resin border effect.

Mix and Color the Epoxy Resin

Measure equal parts of resin and hardener by volume or weight—accuracy is key. For the CRAFT RESIN Arts & Crafts resin 34 Oz, a 1:1 ratio is simple: pour both parts into a graduated mixing cup and stir slowly for at least 3 minutes. Scrape the sides and bottom of the cup to ensure full incorporation. Over-mixing can introduce bubbles, so stir gently but thoroughly.

Once mixed, you can add color. Mica powder works beautifully for opaque, shimmering coasters, while alcohol ink creates translucent, marbled effects. Start with a small amount—you can always add more. Stir the colorant in gently, then let the resin sit for a few minutes to allow bubbles to rise. A quick burst from a heat gun will pop most surface bubbles before pouring.

• Avoid adding more than 5-10% colorant by weight to maintain proper curing.
• Test your color combination on a small piece of scrap before committing to the full batch.

Pour the Resin into the Coaster Mold

Slowly pour the mixed resin into the center of each cavity in your coaster mold. Pouring from a low height reduces bubble entrapment. Fill each cavity to about 80-90% full—resin expands slightly as it cures. If you’re using a mold like the Deep Coaster Resin Mold, you can pour a thin layer first, add decorative elements (dried flowers, glitter, or small shells), then pour the remaining resin to encase them.

After pouring, use a toothpick or skewer to gently stir the resin in the mold to release any hidden bubbles. Then pass a heat gun or torch over the surface from about 6 inches away. The heat will cause bubbles to rise and pop instantly. Repeat this step a few times during the first 15 minutes of curing for the clearest results.

• Work in a dust-free room to prevent particles from settling on the sticky surface.
• If you want a domed top, overfill the mold slightly and let surface tension create a convex finish.

Cure and Demold Your Resin Coasters

Cover your mold with a box or dust cover to protect it from debris while curing. Most epoxy resins require 24-48 hours to fully harden, depending on temperature and humidity. Keep the mold in a warm, stable environment (around 70-75°F) for best results. Avoid moving or disturbing the resin during this time.

Once fully cured, the resin will feel hard and not tacky. To demold, gently flex the silicone mold from the edges—the coaster should pop out easily. If it sticks, place the mold in the freezer for 10 minutes; the contraction helps release stubborn pieces. Your coasters are now ready to use or gift!

• Check for any sharp edges after demolding and sand them with fine-grit sandpaper if needed.
• Apply a clear topcoat or resin gloss for extra shine if desired.

Making your own resin coasters is a rewarding craft that lets you express your creativity while producing functional art. With the right materials—like the CRAFT RESIN Arts & Crafts resin 34 Oz and a quality Deep Coaster Resin Mold—you can create stunning coasters that impress everyone. Start your project today and enjoy the satisfaction of handmade coasters that protect your surfaces in style.