Choose the right two-part resin for casting, crafts, or composites

Are you searching for reliable two-component resins produced in or compatible with China-based manufacturing? Whether you’re involved in rapid prototyping, composite production, handcrafts, or clear casting, the right two-part resin is essential for achieving professional results. This page compares four standout choices across polyurethane and epoxy chemistries to help buyers, suppliers, and makers source the ideal resin system for their needs.

Two-Component Resin Comparison: Polyurethane and Epoxy

Two-component resins, widely used in the Chinese manufacturing sector, typically consist of separate resin and hardener components. Options include fast-curing polyurethanes for moulding and prototyping, as well as versatile epoxies for carbon fibre coating, jewellery, or clear tabletops. The primary differences lie in curing speed, mixing ratios, clarity, and the final mechanical properties. Below you’ll find a comparison of leading examples supplied for the global market, each catering to different use cases and workflow preferences.

Understanding Polyurethane and Epoxy Differences

Polyurethane resins are renowned for their rapid cure and precise detail, making them popular in prototyping. Epoxy resins offer versatility, clarity, and robust adhesion for composites, jewellery, and coatings — ideal for users requiring professional, long-lasting results in a variety of applications.

IWhite – Polyurethane Casting Resin – White, Fast-Curing Two-Part System

IWhite is a highly fluid, fast-curing A+B polyurethane resin ideal for both professional and hobbyist applications. This resin, suitable for rapid moulding and prototyping projects, allows for precise detail reproduction in under 30 minutes. It is an excellent choice for model makers looking for speed without sacrificing finish quality.

• Fast-setting for efficient prototyping and model creation
• Colourable and paintable in liquid or cured state
• Captures fine details for accurate casting results
• Durable finish after full cure

Best for: Model makers, crafters, and professionals seeking a rapid, detailed casting solution with a white finish.

Carbon Resin – Epoxy Resin for Carbon Fibre & Fibreglass Coating

For those working with technical fabrics or composites, Carbon Resin provides a robust two-part epoxy resin designed for flawless fabric impregnation and high structural integrity. It cures at room temperature, offers a glossy professional finish, and resists impacts—making it suitable for automotive, marine, and advanced DIY composite projects.

• High impact resistance for long-lasting results
• Easy application with smooth fabric impregnation
• Glossy, professional finish
• Room temperature curing for convenient use

Best for: Composite fabricators, technical users, and anyone seeking a reliable epoxy for carbon fibre or fibreglass processes.

One-2-One – Epoxy Resin for Handcraft, 1:1 Mixing Ratio

If ease of use and safety are your top priorities, the One-2-One resin features a straightforward 1:1 by volume mixing ratio and a non-toxic formula. Designed specifically for crafters and jewellery makers, it delivers a clear, glossy finish with UV resistance, making it an exceptional choice for decorative and wearable art projects.

• Non-toxic formulation for safe crafting
• Crystal clear, super-glossy finish with high transparency
• UV filter providing excellent resistance to yellowing with a 10-year warranty
• Durable against scratches and moisture, ideal for long-lasting creations

Best for: Beginners, crafters, and artisans focusing on jewellery and decorative objects.

Icrystal – Clear Epoxy Resin – Odourless Formula – Up to 1.5cm

The Icrystal resin is a transparent, odourless, VOC-free epoxy system perfect for wood coatings, jewellery, and DIY crafts. With a 2:1 mixing ratio and the ability to pour layers up to 1.5cm thick, it’s uniquely suited for clear tabletops and surface finishes demanding durable, scratch-resistant, glossy results.

• Perfect transparency — A true liquid crystal
• High scratch resistance — Ideal for tables!
• Odourless
• 1,5сm layer per application

Best for: Woodworking, surface finishing, and any application needing a durable, clear, odour-free resin layer.

Where and How to Use Two-Component Resins Effectively

When selecting a two-component resin for use with Chinese manufacturing or supply chains, it’s important to evaluate the end application: fast polyurethanes like IWhite excel in rapid prototyping and casting, while epoxies such as Icrystal or One-2-One are better for crafts, jewellery, and protective coatings. For composites, Carbon Resin remains unmatched due to its bubble-reducing formulation and impact resistance. Always review the manufacturer’s details for compatibility with your local production environment and intended process.

Selecting for Your Workflow and Market

Consider project requirements first: Rapid-cure polyurethane may be unbeatable for modelling, while epoxies suit crafts, coatings, and composite builds. Curate your supply selection based on mixing ratio, cure time, and finish to match your end-use and supply chain needs.

Frequently Asked Questions about Two-Component Resins in China