1. Store upright in its original containers. Resin is sold in containers compatible with its chemicals and will keep it stable over time.
2. Do not store mixed resin. Once it’s mixed you have to use it or lose it. Otherwise, you will have a hard block of resin when you go to use it.
3. Store in a cool, dark place. The bottom of an indoor closet works great.
4. Do not store in direct sunlight. The UV light can speed up the yellowing of your resin.
5. Store where the resin will not be subject to temperature swings, like a garage, attic, or freezer. 70 degrees F is ideal.
6. Mark somewhere on your resin containers when you purchased the resin. This will help with making sure you use it up in a timely fashion.
7. Store resin bottles in a plastic bag and/or larger plastic container. If something does spill, it will be easier to contain the mess.
8. Familiarize yourself with the shelf life of the products you are using. While most epoxy resins have a shelf life of a year, others like polyesters and polyurethanes, have a much shorter useful life. Only buy the amount of resin you can comfortably use within half of the shelf life time.
Once your resin bottles are open, here are a few other helpful resin tips:
- Only remove one cap at a time. Putting the hardener cap on the resin container (or vice versa) is all it takes to permanently close the bottles. I pour the contents from one bottle, then replace the cap before opening the next bottle.
- When I empty one container, even if I have some left in the other container, I always start a new kit. You want to use a fresh kit with new product instead of using an aged product from an old bottle.
- If the shelf life of resin has expired, do not fear. You may still be able to use it for your projects. If you’ve stored it properly, it should cure, but may have an amber color. If you are coloring the resin, this will unlikely be noticeable. Here’s what you can do with yellowing resin.
Have more questions about creating with resin?
Confused by all the information out there? It’s enough to frustrate anyone! It’s why I wrote the book Resin Fundamentals. You don’t have time to spend hours learning resin. Instead, take an afternoon to read the book and feel confident taking on your next resin project!
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