Ultra Clear Fast Cure Epoxy Resin for Coasters Making

Professional Epoxy Resin Manufacturing Experts
With 17+ years of epoxy resin R&D and manufacturing expertise, Jianghe New Materials is an ISO 9001 certified company dedicated to providing premium epoxy resin solutions for artists and makers worldwide. Our 1201AB-33 series is specifically formulated for the DIY and craft market, trusted by resin artists in over 50 countries for its exceptional clarity, self-bubble properties, and anti-yellowing performance.

Epoxy resin coasters are one of the most popular DIY projects today. However, many creators struggle with bubbles, yellowing, and uneven surfaces. The 1201AB-33 was developed specifically to solve these common problems.

Fast Cure for Efficient Production – Same-Day Results
The 1201AB-33 features a 20-minute working time followed by a 1-hour initial cure and a 10-hour full cure. This cure profile is specifically designed for creators who value efficiency. Pour your coasters in the morning, and by evening they are fully cured and ready to demold. This same-day turnaround is a game-changer for small-batch producers, Etsy sellers, and anyone needing to fulfill orders quickly.

Superior Self-Bubble Performance – No Vacuum Needed
Traditional epoxy resins often require vacuum degassing equipment to remove bubbles – a significant barrier for home-based creators. The 1201AB-33 features an advanced self-bubble formulation. After mixing, simply let the resin sit for 3-5 minutes. Bubbles naturally rise to the surface and disappear. For thin coaster pours (typically 5-8mm thickness), this self-bubble property delivers clean, bubble-free results every time, even without professional equipment.

Excellent Transparency for Showcasing Designs
The 1201AB-33 cures to a water-white clear finish with 90%+ light transmission. Photos appear vibrant, dried flowers retain their natural colors, and glitter sparkles brilliantly. For indoor use, the clarity retention is excellent – your coasters will maintain their beautiful appearance for years under normal household conditions.

Note: As with most epoxy resins, prolonged exposure to direct sunlight may cause gradual yellowing over time. For outdoor applications or items in direct sun, we recommend using UV-resistant topcoats.

Ideal Workflow for Batch Production
The 20-minute working time is perfectly balanced for coaster production. It's long enough to pour 8-12 standard coasters in one batch, but short enough to maintain production momentum. This allows you to:

• Mix multiple small batches for different designs.
• Maintain consistent quality across each batch.
• Move quickly from mixing to pouring to curing.

Durable, Scratch-Resistant Surface
With Shore D hardness of 78-82, the cured surface is exceptionally hard and resistant to scratches. Coasters maintain their mirror-like gloss even after months of daily use with coffee cups, water glasses, and ceramic mugs.

Detailed Technical Specifications

Usage Guide & Steps

1. Workspace Preparation

• Maintain working temperature between 20-25°C (68-77°F).
• Ensure relative humidity is below 85% for optimal curing.
• Clean coaster molds thoroughly – any dust or residue will show in the final product.
• Prepare scale, mixing cups, stir sticks, pipettes, and heat gun.
• If using photos or dried flowers, ensure they are completely dry.

2. Mixing and Dispensing

• Accurately weigh 1201A-33 and 1201B-33 at a 1:1 ratio.
• Pour both components into a clean mixing cup.
• Stir slowly and thoroughly for 2-3 minutes, scraping the sides and bottom of the cup.
• Avoid vigorous stirring which can introduce excessive bubbles.

3. Self-Bubble Settling

• Let the mixed resin sit for 3-5 minutes. During this time, bubbles will naturally rise to the surface and disappear. The resin will become crystal clear.

4. Pouring Technique

• Slowly pour the resin into your coaster molds.
• For embedded designs, use a two-pour method: first pour a thin layer (approx. 2mm), place inclusions, then pour the remaining resin.
• Use a toothpick or pipette to adjust the position of inclusions.
• After pouring, quickly pass a heat gun over the surface to eliminate any remaining micro-bubbles.

5. Curing and Demolding

• Allow resin to cure for approximately 1 hour at room temperature until initial set.
• Continue curing for a total of 10 hours at room temperature.
• After full cure, demold your coasters.
• For enhanced gloss, sand edges and apply a clear topcoat if desired.

Safety, Handling & Storage Guidelines

• Temperature Control: Optimal working temperature is 20-25°C (68-77°F). Below 15°C (59°F), warm Part A to 30°C (86°F) before mixing to reduce viscosity and improve flow. Above 30°C (86°F), pot life decreases significantly.
• Humidity Precautions: When relative humidity exceeds 85%, the curing surface may absorb moisture, resulting in a cloudy or hazy finish. If humidity is high, use heat curing (40-50°C / 104-122°F) or cover curing coasters to minimize moisture contact.
• Accurate Mixing: The 1:1 ratio is critical. Incorrect ratios will result in incomplete cure, sticky surfaces, or permanent tackiness. Always use a digital scale for precision.
• Moisture Sensitivity: Part B (hardener) is moisture-sensitive. Always seal containers immediately after use. Prolonged exposure to humid air will degrade the hardener and affect cure quality.
• Safety First: Wear nitrile gloves during handling. Work in a well-ventilated area. If skin contact occurs, wash immediately with soap and water.

Applications & Project Gallery

A. Photo Coasters – Cherish Your Memories
Transform family photos, pet portraits, or travel memories into beautiful, functional coasters. The 1201AB-33’s exceptional clarity makes images appear to float in glass, with vibrant colors preserved for years. Perfect for wedding keepsakes, baby memorials, or personalized gifts.

B. Dried Flower Coasters – Capture Nature’s Beauty
Preserve the delicate beauty of dried flowers, leaves, and botanicals in crystal-clear epoxy. Arrange petals in artistic patterns, then pour the 1201AB-33 to seal them forever. These coasters are not just functional – they’re miniature works of art.

C. Glitter and Sequins Coasters – Add Sparkle to Any Space
Create stunning glitter coasters in any color combination. Mix glitter, sequins, or mica powders into the resin for uniform distribution, or layer them for dramatic effects. The high transparency of 1201AB-33 makes every sparkle shine brilliantly.

D. Wood and Resin Combination Coasters – Natural Meets Modern
Combine wood slices, bark, or woodworking remnants with clear epoxy to create unique, organic coasters. The excellent adhesion of 1201AB-33 to wood ensures a permanent bond that won’t delaminate over time.

Custom Epoxy Solutions for Coaster Brands and Manufacturers

We offer comprehensive OEM/ODM services for coaster producers and craft brands:
1. Custom Formulation Development: Adjust cure speed, hardness, viscosity, and transparency to match your specific product requirements.
2. Color Matching: Develop signature transparent or translucent colors for your brand.
3. Private Label Packaging: 250ml, 500ml, 1L retail kits with your branding and instructions.
4. Technical Support: Process optimization and troubleshooting for your production line.
5. Bulk Supply: 5kg, 20kg, 200kg packaging options for small-batch to industrial-scale operations.

👉 [Partner With Us for Your Coaster Epoxy Line]

Why Coaster Makers Trust Jianghe 1201AB-33

1. Superior Self-Bubble Technology: 3-5 minute degassing – no vacuum equipment needed.
2. Long-Term Anti-Yellowing: Premium curing system keeps coasters crystal clear for years.
3. Ideal Working Window: 60-minute pot life – enough time for 8-12 coasters per batch.
4. Fast Production Cycle: 10-hour full cure – pour in morning, demold by evening.
5. Scratch-Resistant Surface: Shore D 78-82 hardness withstands daily use.
6. 17+ Years Epoxy Expertise: ISO 9001 certified, trusted by creators in over 50 countries.

👉 [Request Your Free Sample Kit]

If You Need Customized Packaging Or Other Specifications, Please Contact Us.

FAQ:

Q1: How do I achieve bubble-free coasters without a vacuum pump?
A: The 1201AB-33 features excellent self-bubble properties. Follow these steps: ① Mix slowly for 2-3 minutes; ② Let mixed resin sit for 3-5 minutes – bubbles will naturally rise and disappear; ③ Pour slowly into molds; ④ Pass a heat gun quickly over the surface after pouring. No vacuum equipment is needed for bubble-free results.

Q2: How long does full curing take for coasters?
A: At 25°C (77°F), initial cure occurs in approximately 1 hour (surface is firm). Full cure is achieved in approximately 10 hours, after which coasters can be demolded and used. For faster production, mild heat (40-50°C / 104-122°F) can reduce cure time.

Q3: How do I embed photos in coasters without them floating to the surface?
A: Use the two-pour method: ① Pour a thin base layer (approx. 2mm) and allow it to partially cure until tacky; ② Place your photo (pre-sealed) on the tacky surface; ③ Pour the remaining resin to cover completely. This prevents floating and ensures the photo stays properly positioned.

Q4: Can these coasters be used for hot coffee or tea cups?
A: The heat deflection temperature of 1201AB-33 is 40°C (104°F). It is suitable for warm beverages (coffee, tea, warm water) at typical drinking temperatures. Avoid placing extremely hot items like fresh-from-boiling pots directly on the coaster.

Q5: What causes a cloudy or hazy finish, and how do I prevent it?
A: Cloudiness is usually caused by high humidity during curing. When relative humidity exceeds 85%, the curing surface can absorb moisture and develop a haze. Prevention: ① Work on low-humidity days; ② Cover curing coasters with a cardboard box to reduce moisture exposure; ③ Use heat curing (40-50°C / 104-122°F) during humid conditions.