# RUNMULTI

> Custom Injection Molds & 2K Overmolding from Xiamen, China


## Posts

- [Gate Location & Knit Lines in Overmolded Grips](https://orchid-salmon-563129.hostingersite.com/gate-location-knit-lines-overmolded-grips/): Soft-grip scrap on overmolded handles, tool housings, and wearable edges rarely starts as a vague “China quality” problem.
- [Rotary Platen vs Core-Back vs Robot Transfer: Choosing a 2K Tooling Method](https://orchid-salmon-563129.hostingersite.com/rotary-platen-vs-core-back-vs-robot-transfer/): An RFQ that only says "2K mold" without naming the transfer method is how programs get the wrong press, the wrong quote, and a late redesign.
- [Draft Angle Guidelines for Textured and Soft-Touch Parts](https://orchid-salmon-563129.hostingersite.com/draft-angle-guidelines-textured-soft-touch/): "Give it 1° everywhere" is the most common draft note we see on EU and US drawings — and the note that fails first once texture or a soft-touch TPE lands on a vertical wall.
- [Shut-Off Design in 2K Molds: Where Soft Flash Really Starts](https://orchid-salmon-563129.hostingersite.com/shut-off-design-in-2k-molds/): In a normal single-shot mold, a shut-off is steel meeting steel.
- [10 DFM Mistakes That Make Injection Molds Expensive](https://orchid-salmon-563129.hostingersite.com/10-dfm-mistakes-that-make-injection-molds-expensive/): Most “cheap mold” surprises are not steel-grade tricks.
- [TPE Overmolding Material Compatibility: Which Substrates Bond?](https://orchid-salmon-563129.hostingersite.com/tpe-overmolding-material-compatibility/): Soft grip on a hard housing fails for one reason more than any other: the elastomer and the substrate were never a matched pair.
- [2K Molding with Laser Texture: A Mold Engineer's Design Guide](https://orchid-salmon-563129.hostingersite.com/2k-molding-laser-texture/): A two-shot housing already tells a story: two materials or two colors, bonded in one cycle, no assembly.
- [Two-Shot Molding vs Overmolding: Which Should You Choose?](https://orchid-salmon-563129.hostingersite.com/two-shot-vs-overmolding/): If your part needs a soft grip on a rigid housing, a sealed button edge, or two colors without assembly, you face a practical choice: two-shot (2K) molding or overmolding (pick-and-place / insert overmold)?

## Pages

- [China Mold Quote Comparison Kit](https://orchid-salmon-563129.hostingersite.com/mold-quote-comparison-kit/): A practical Excel workbook and two one-page checklists that help product engineers and buyers see what is — and isn't — inside each injection mold quote before choosing a supplier.
- [Independent DFM Review](https://orchid-salmon-563129.hostingersite.com/services/dfm-review/): Find tooling problems before you pay for steel. NDA-protected.
- [Contact](https://orchid-salmon-563129.hostingersite.com/contact/): Send your drawings and requirements. A mold engineer will review them and reply within 24 hours with questions or a quote.
- [FAQ](https://orchid-salmon-563129.hostingersite.com/faq/): 3D files (STEP or IGES preferred; STL accepted) plus a 2D PDF with tolerances if available. Add quantity, material and finish.
- [About](https://orchid-salmon-563129.hostingersite.com/about/): Xiamen RUNMULTI Co., Ltd is a mold and injection molding company in Xiamen, Fujian, China, established in 2008.
- [Industries](https://orchid-salmon-563129.hostingersite.com/industries/)
- [China Sourcing & QC](https://orchid-salmon-563129.hostingersite.com/services/china-sourcing/): Buying molds and plastic products in China is easy; buying the right ones consistently is not.
- [Plastic Parts](https://orchid-salmon-563129.hostingersite.com/services/plastic-parts/): Once your mold is approved, RUNMULTI produces the parts — single-material, two-shot or overmolded — inspected and packed for export to Europe and the US.
- [Overmolding](https://orchid-salmon-563129.hostingersite.com/services/overmolding/): Overmolding adds a second material over a pre-molded substrate — typically a soft TPE or TPU over a rigid plastic.
- [Two-Shot Molding](https://orchid-salmon-563129.hostingersite.com/services/two-shot-molding/): Two-shot molding injects two materials or two colors into one mold in a single machine cycle.
- [Injection Molds](https://orchid-salmon-563129.hostingersite.com/services/injection-molds/): A mold decides your part cost, cosmetic quality and production stability for years.
- [Services](https://orchid-salmon-563129.hostingersite.com/services/): Single- and multi-cavity production and export tooling, designed for your part, resin and volume.
- [Home](https://orchid-salmon-563129.hostingersite.com/): Engineer-led tooling and molded parts for EU and US brands — from DFM review to inspected, export-ready parts.
- [Thank You](https://orchid-salmon-563129.hostingersite.com/thank-you/): Thank you — your request is with our engineering team. We'll reply within 24 hours. Need to add files? Reply to our confirmation email.
- [Privacy Policy](https://orchid-salmon-563129.hostingersite.com/privacy-policy/): This is a short draft for the staging site. Xiamen RUNMULTI Co., Ltd will replace it with a full policy before launch.


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