Can water-based aluminum silver paste still be used after being stored for a long time? As environmental awareness continues to grow, people are placing greater emphasis on eco-friendly coatings, which has, in turn, fueled the development of the water-based aluminum silver paste market. Consequently, many customers, after purchasing water-based aluminum silver paste, choose to store any leftover product for future use—only to wonder later, "Can this water-based aluminum silver paste still be effective if left unused for an extended period?" Let us now provide you with a detailed answer.
Can water-based aluminum silver paste still be used after being stored for a long time? According to what our editor has learned, whether water-based aluminum silver paste is usable actually depends on a simple check. Now, let us walk you through 3 steps to verify the quality of water-based aluminum silver paste—so follow along as we dive into the details below.
1. Inspect the product's appearance
Typically, the first step when inspecting a product is to check whether the outer packaging is intact, and only then should you examine the water-based aluminum silver paste inside the container for any signs of oxidation or clumping. As our editor has learned, oxygen exposure usually causes the water-based aluminum silver paste to transform from its original paste-like consistency into hard, solid lumps. If you notice this change, it means that this batch of water-based aluminum silver paste is no longer suitable for use.
2. Sample Testing
If the previous step confirms that the product’s appearance is flawless, the second step involves conducting a sample test. Some might wonder, “What exactly is a sample test?” Well, simply put, a sample test compares the performance of the existing product with the results obtained from testing a physical sample. If there’s no noticeable difference between the two, it generally indicates that the product is functioning properly with minimal issues.
3. Temperature Resistance Test
Of course, after ensuring that the above two points are met, we’ll still conduct a temperature resistance test just to be on the safe side. Specifically, we’ll place the water-based aluminum silver paste into a constant-temperature oven maintained at around 55°C for testing. If no loss of gloss or gelation occurs within 7 days, it can typically be stored for about six months. However, if no abnormalities appear even after 14 days, it can generally be safely stored for anywhere from six months to a year.
That’s all for the information we’ve shared with you today on whether water-based aluminum silver paste can still be used after being stored for a long time. We hope this was helpful. In the future, we’ll bring you even more insights about aluminum silver paste—so if you enjoy our content, make sure to stay tuned!
