Understanding the Science Behind 2:1 and 3:1 Epoxy Systems

Choosing the right epoxy system is more than just mixing resin and hardener — it’s about understanding the chemistry that drives performance, durability, and clarity.
At CNMI Industrial Corporation, we engineer epoxy systems that balance precision and flexibility, offering professional-grade results for both artistic and industrial applications.

⚗️ Why the Mixing Ratio Matters

The mixing ratio of resin and hardener determines the molecular network that forms during curing.

· A 2:1 ratio means two parts of resin combine with one part of hardener.

· A 3:1 ratio means three parts of resin react with one part of hardener.

Each ratio produces a unique polymer structure — influencing curing speed, hardness, clarity, and resistance.

 2:1 Systems — Balanced Strength and Versatility

2:1 epoxy systems, such as CNMI’s HL210 series, are widely used for deep-pour applications, casting art, and thick furniture coatings.
These systems:

· Provide longer working time for large projects

· Produce bubble-free clarity

· Maintain high bonding strength after full cure

They are ideal for resin artists, river tables, and creative studios needing extended pot life and optical transparency.

 3:1 Systems — High-Strength Industrial Performance

3:1 systems like CNMI’s HL310 are engineered for industrial coatings, composite materials, and structural bonding.
Their higher resin ratio enhances crosslink density, resulting in:

· Greater surface hardness

· Excellent chemical and thermal resistance

· Faster curing under controlled temperatures

These properties make them perfect for flooring, tool making, and composite reinforcement.

 Quality Through Precision Engineering

Every CNMI epoxy system is tested for mix ratio accuracy, viscosity stability, and curing consistency.
Our formulations are ASTM D4236, FDA, and EN71 certified — ensuring they meet both performance and safety requirements across global markets.

Whether it’s a 2:1 system for art or a 3:1 system for industry, CNMI delivers precision-engineered epoxy solutions for every need.

 Read More from CNMI

·  What Makes CNMI’s Epoxy Systems Trusted by Makers and Manufacturers Worldwide

·  How CNMI Develops Food-Safe Epoxy Systems for Global OEM Partners

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**About CNMI Industrial Corporation**
CNMI Industrial Corporation is a professional OEM epoxy resin manufacturer headquartered in Beijing, China, with production facilities in Hunan and Hebei.
All CNMI epoxy systems are ASTM D4236, FDA, and EN71 certified.
[www.icnmie.com](https://www.icnmie.com) | info@icnmie.com

· #Epoxy Resin, #Epoxy Systems, #Material Science, #OEM Manufacturing, #Industrial Materials, #CNMI