Curious about whether you can adjust the A+B mixing ratio of epoxy resins? This guide explains everything you need to know about epoxy resin mixing ratios: what they mean, why following the manufacturer’s instructions is critical, and which ResinPro products offer user-friendly, fixed-proportion mixing for crafts, gluing, and repairs. If you’re a maker, artist, or DIY enthusiast concerned about measuring mistakes or achieving reliable results, this page is for you.

Understanding Epoxy Resin Mixing Ratios

All epoxy resins consist of two components—resin (A) and hardener (B)—that must be mixed in a precise ratio. Most commonly, products specify a fixed mixing ratio such as 1:1, 2:1, or 3:2, either by weight or by volume. Fixed mixing ratios ensure safe curing and durability. Changing this balance can lead to under-cured or weak results, damaged projects, and in some cases, total failure of the resin or adhesive. Each formulation is carefully engineered, so manufacturers strongly advise against altering the provided A+B ratio.

ResinPro offers several products featuring an intuitive 1:1 mix ratio—ideal for beginners and anyone seeking simplicity and error-free results. Below you’ll find a comparison of options, from general-purpose adhesives to precision handcraft kits, all developed with safe, fixed ratios in mind.

Visual Guide: Spotting Correct Resin Mixing Ratios

See the difference: Products with a 1:1 ratio let you mix equal volumes without calculations—a great help for home crafters and repairers. Always check the packaging or instructions for the specified ratio and never guess the mix, as shown in these product visuals and real project examples.

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

The “One-2-One” – Epoxy Resin for Handcraft, 1:1 Mixing Ratio is a favourite among beginners and experienced crafters alike. It requires no complicated calculations—the easy 1:1 mixing ratio (by volume) simplifies every pour and minimises the risk of mistakes. Perfect for jewellery, cabochons, coatings and decorative objects, it produces a clear, glossy finish with UV protection and high resistance to scratches and moisture. The non-toxic formulation and included safety gloves make it ideal for home studios, classrooms, and small workshops.

“FixExpress” – Two-Component Epoxy Glue 500g

If you need a speedy and robust adhesive, “FixExpress” – Two-Component Epoxy Glue 500g offers a hassle-free 1:1 mix either by weight or volume. It sets in just five minutes—ideal for repairs or bonding wood, glass, ceramics, metals, plastics, and more. Because altering the ratio can cause soft cures, tackiness, or reduced bond strength, always mix in precise equal parts as detailed in the instructions.

“Klebfix” – Two-Component Fast Epoxy Glue 2K, 25g Syringe

The “Klebfix” – Two-Component Fast Epoxy Glue 2K, 25g Syringe is engineered for professional-strength repairs and high load resistance. It cures rapidly (about five minutes) and offers straightforward use with its double chamber syringe—which automatically dispenses a perfect 1:1 ratio, leaving no room for error. This BPA-free, transparent adhesive is a superb choice for neat, secure multi-material bonds.

“Evershine Collection” – Artisan Jewellery Epoxy Resin Kit with 100+ Accessories

For those wanting an accessible start in resin crafts, the “Evershine Collection” – Artisan Jewellery Epoxy Resin Kit with 100+ Accessories simplifies everything. Choose 1:1 resin kits for simplicity and error-free mixes. With 500g of clear, 1:1-mix resin, 12 pigments, dried flowers, silicone moulds, and over 100 accessories, this all-in-one kit is ideal for gifts and experimentation. All-in-one kits include pre-measured ratios for complete peace of mind.

When and Why You Should Never Vary The Mixing Ratio

Epoxy resins and glues are formulated to work with a strict ratio of resin (A) to hardener (B). Even slight changes—adding more hardener for a faster cure or less hardener to delay setting—will compromise the chemical structure, often resulting in sticky surfaces, cloudiness, or brittle objects. If you need a particular working time or finish, select a product designed to meet your project’s requirements and always follow the supplied instructions without modification.

Real Project Results with Correct and Incorrect Ratios

Consistent mixing delivers consistent results. The gallery below shows examples with the right 1:1 ratio—yielding glossy finishes and strong bonds—versus failed projects where proportions were altered, highlighting the importance of accuracy.