Getting a perfect resin pour begins long before you actually pour anything. The way you measure and mix determines whether your project cures to a glass-hard finish or remains tacky forever. It’s the step most beginners rush, but it’s also the easiest one to master once you know what to look for.
Every brand has its own ratio, usually either 1:1 by volume or something like 100:45 by weight. Always read the label before you start, because using the wrong ratio is the most common reason resin stays sticky. If the label gives both options, measuring by weight is the most accurate, especially for small batches.
Use clean, dry measuring cups made of plastic or silicone. Any moisture or leftover resin can disrupt the reaction. Pour the resin first, then the hardener, keeping your eye level with the markings. A small digital scale works well if you prefer weighing instead of using cups.
When it comes to mixing, slow and steady is essential. Stir for at least two to three minutes, scraping the sides and bottom constantly. Mixing too fast whips in air and bubbles your piece with air pockets. You’ll know it’s ready when the liquid changes from cloudy to clear and has an even texture.
Transfer the mixed resin into a second clean cup and give it another gentle stir before pouring. This “double cup” method catches any unmixed streaks stuck to the walls of the first cup and ensures a more reliable cure.
Temperature impacts how everything behaves. Cold resin thickens and traps air, while overly warm resin sets too quickly. Aim for a room temperature around 22 to 25°C and pre-warm the bottles in a bowl of warm water if the resin feels thick.
Take your time. Precise measuring and patient mixing are what distinguish flawless, glassy finishes from failed projects. If something goes wrong, check your ratio, mixing time, and temperature before blaming the product—nine times out of ten, the solution is right there.
