The best way to fix a jelly-like consistency left over after curing is to scrape off the excess resin that has not cured. Then, apply a new layer that is perfectly mixed with a 1:1 ratio of resin and hardener. Double check that the workspace temperature is 72-85°F (The closer to 78°F the better). Check the resin storage temperature, if the bottles are cool, use a warm water bath to raise the bottle temperature. Lastly, be precise with the 1:1 ratio of resin to hardener.