When cleaning resin, the best approach is to treat it as you would any glass surface.
Use a soft cloth and a gentle cleaner or polish to remove dirt or smudges.
It's important to remember that resin can be sensitive to direct sunlight, so try to keep it out of prolonged sun exposure and use covered outdoor spaces when necessary.
And while a dishwasher might seem like an easy cleaning solution, it's not safe for resin materials and could damage them. But with a little care, your resin pieces can shine just as brightly as glass.