What Is the Correct Ratio for Mixing Bifasic Resin?

Understanding Resin Mixing Ratios

Bifasic, or two-part, resins require mixing a resin base with a hardener. The correct ratio can be expressed either by weight or by volume and varies between manufacturers and resin types. Always check the packaging or product datasheet before you begin, as using the wrong ratio can result in incomplete curing or a tacky surface.

• By volume: This is popular for user-friendly systems—simply combine equal parts from each bottle. For example, the One-2-One epoxy resin is mixed 1:1 by volume, making it easy to measure correctly with basic cups.
• By weight: Other resins may require measurements in grams, which are best achieved with digital scales. Precision is essential, so a tool like Precision Digital Scales can help you avoid errors in blending.

Practical Steps for Accurate Mixing

Preparation is key to achieving a successful mix. Begin by reading the product instructions carefully. If mixing by volume, use marked mixing containers to ensure accuracy. For weight-based resins, calibrate your digital scales and weigh the components precisely. Stir the mixture slowly and consistently, scraping the sides and bottom of your container, until the blend becomes uniform—it should look clear and free of streaks.

For simpler projects or for beginners, starter kits such as the Evershine Collection include easy-measure resin, suitable for jewellery making and small crafts.

When Does Getting the Ratio Matter Most?

Accurate mixing ratios are especially important for projects where curing quality and finish are paramount. This includes jewellery, decorative coatings, and any clear casting where imperfections are visible. Inaccurate ratios can lead to sticky or brittle results, affecting both appearance and strength. For deep casts or larger pours, follow the manufacturer’s ratio to the letter for the best outcome.