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Casting vs injection molding—which method works better?

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aviation_duke9618
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(@aviation_duke9618)
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Good points overall, but a couple things to consider:

- Marine-grade epoxy is solid, but even high-quality resins can yellow or degrade slightly over time, especially in kitchens with lots of sunlight exposure. Seen it happen firsthand on some custom cabinet handles I had made.
- Injection molding molds are pricey upfront, true, but if you're aiming for a super polished, luxury finish with consistent dimensions, injection molding edges out casting every time.
- Also, tweaking molds isn't impossible—just expensive and time-consuming. But if precision and repeatability matter more than flexibility, injection molding might still be worth the hassle.

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(@fitness_summit)
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Good insights here, especially about the epoxy yellowing. Had a similar issue with some custom resin pulls we did for a client's kitchen island—looked amazing at first, but after about a year near big south-facing windows, they definitely lost some clarity. Injection molding does give that consistent, high-end feel, but man, the upfront cost and commitment can sting if you're just doing a smaller run or one-off custom pieces. Guess it really depends on the scale and how picky the client is about uniformity...

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(@rockyhiker)
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Had a similar experience with epoxy countertops—looked fantastic initially, but after about 8 months near large windows, they started yellowing noticeably. Injection molding is definitely cleaner and more consistent, but the cost just doesn't make sense unless you're doing larger quantities. For smaller custom jobs, casting still wins for flexibility and budget. I usually just warn clients upfront about potential color shifts over time...most appreciate the honesty, and it saves headaches later.

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(@charlesfire954)
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Had similar issues with epoxy yellowing in direct sunlight—ended up switching to UV-resistant resins for casting. Costs a bit more upfront, but saves the hassle later. Injection molding's great, but yeah, only worth it at scale.

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climbing_emily
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(@climbing_emily)
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Recently faced a similar dilemma while customizing fixtures for my new place. Initially went with standard epoxy, but noticed discoloration pretty quickly under sunlight. Switched to UV-resistant resin—definitely pricier upfront, but worth it for the long-term aesthetics and peace of mind. Injection molding seemed tempting, but yeah...not practical at smaller scales.

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