Resin Charms

Product Overview

Custom-molded resin charms are manufactured through vacuum liquid casting and ultraviolet (UV) or thermal curing, specifically engineered for jewelry brands, accessory assemblers, and craft distributors. Production utilizes precision CNC-machined aluminum or silicone tooling to ensure dimensional consistency across high-volume production runs.

Polymer Base: Two-part liquid epoxy resin, UV-curable acrylate resin, or unsaturated polyester resin.

Molding Process: Vacuum mixing, metered liquid dispensing, gravity/pressure casting, and controlled thermal/UV curing.

Integration Hardware: Embedded stainless steel or brass eyelets, jump rings, drilled attachment holes, or flatback surfaces for adhesive bonding.

Production Capability: OEM/ODM bulk manufacturing with in-house material testing and lot traceability.

Bakery Food Resin Charms

Bakery Food Resin Charms are resin components shaped around cakes, cupcakes, donuts, cookies, croissants, bread and other bakery-inspired designs.

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Coffee Cup Resin Charms

Coffee Cup Resin Charms are three-dimensional resin components shaped around coffee-themed designs such as mugs, takeaway cups, iced coffee, and café-style drinks.

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Candy Shaped Resin Charms

Candy Shaped Resin Charms are decorative resin components molded in candy-inspired forms such as lollipops, wrapped sweets, gummy-style pieces, and custom confectionery shapes.

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Ice Cream Shaped Resin Charms

Ice Cream Shaped Resin Charms are small 3D resin components made in ice cream, cone, popsicle and soft-serve inspired shapes.

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Cake Shaped Resin Charms

Cake Shaped Resin Charms are dessert-themed resin components used for jewelry, craft accessories and novelty products.

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Dessert Shaped Resin Charms

Dessert Shaped Resin Charms are 3D decorative resin components shaped like cakes, donuts, cookies, ice cream, macarons, chocolate, pies and other dessert-inspired designs.

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Custom Resin Charms For Jewelry Brands

Custom resin charms are decorative jewelry components developed around a buyer’s own design, dimensions, colors and attachment requirements.

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Resin Bow Charms For Jewelry Making

Resin Bow Charms are lightweight decorative components for jewelry making, craft accessories and fashion embellishment.

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Resin Drop Charms For Jewelry

Resin drop charms are decorative jewelry components used for earrings, necklaces, bracelets and other fashion accessories.

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Resin Earring Charms

Resin earring charms are lightweight jewelry components used for dangle earrings, hoop earrings, DIY jewelry, seasonal collections, and private-label fashion accessories.

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Resin Link Charms For Bracelets

Resin link charms are decorative jewelry components used to connect or decorate bracelets, charm jewelry and DIY jewelry assemblies.

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Resin Bead Charms For Jewelry Making

Resin bead charms are lightweight decorative components used for bracelets, necklaces, earrings, phone straps, bag charms and other jewelry accessories.

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Key Features

UV Stabilization: Formulated with hindered amine light stabilizers (HALS) to prevent yellowing, discoloration, or polymer degradation under prolonged solar exposure.

Impact Resilience: High cross-link density epoxy matrix provides Shore D 80D-85D hardness, preventing chipping or cracking during retail assembly and drop impacts.

Secure Attachment Retention: Metal insert loops undergo axial pull-force testing to prevent detachment from the cured resin body under mechanical stress.

Clean Edge Finishing: Demolded components undergo automated or manual edge trimming and mechanical polishing to eliminate flash, sharp burrs, or surface imperfections.

Spectrophotometer Color Control: Pigment dispersion is verified against Pantone C and U color swatches to minimize batch-to-batch chromatic deviation.

Product Types

Type	Material Composition & Characteristics	Primary Industrial Application
Solid & Opaque Charms	Opaque pigment dispersion; high surface gloss; uniform solid color distribution throughout the cross-section.	Branded keychains, promotional giveaways, mascot merchandise.
Translucent & Jelly Charms	Light-transmitting resin matrix; glass-like clarity with custom color tints or gradient effects.	Summer fashion jewelry, resin phone grips, drop earrings.
Glitter & Foil Embedded Charms	Encapsulated metallic flakes, holographic glitter, or dried botanicals suspended evenly within the polymer matrix.	Boutique handmade jewelry lines, high-end craft supply distribution.
Custom 3D Sculpted Charms	Multi-level contours and complex geometries produced from client-supplied STEP/IGES CAD files.	Licensed character collectibles, distinctive corporate brand logos.
Flatback Adhesive Charms	Flat reverse contact surface engineered for high-bond structural adhesive application.	Hair accessories, stationery clips, phone case ornamentation.

Technical Specifications

Parameter	Specification Detail	Test Method / Standard
Base Material	Epoxy Resin / Polyester Resin	ASTM D570 (Water Absorption)
Durometer Hardness	80D - 85D	ASTM D2240 (Shore D)
Dimensional Tolerance	+/- 0.1 mm	Digital Caliper / CMM Verification
Operating Temperature Range	-20 deg C to 70 deg C	Thermal Cycling Test
Loop Axial Pull-Off Strength	>= 35 N	Tensile Strength Testing Machine
UV Resistance (Yellowing Index)	>= 500 hours without yellowing (Delta E <= 1.5)	ASTM G154 (QUV Accelerated Weathering)
Regulatory Compliance	RoHS, REACH (SVHC restricted list), EN71-3	Third-Party ICP-MS & Migration Testing
Standard Dimensions	15 mm to 50 mm (Custom sizes up to 120 mm)	Optical Comparator
Thickness Options	2.5 mm to 8.0 mm (+/- 0.15 mm)	Micrometer Gauge

Applications

Fashion Jewelry: Component production for charm bracelets, pendant necklaces, drop earrings, and anklets.

Apparel & Luggage Hardware: Zipper pulls, decorative bag charms, and apparel brand tags.

Consumer Electronics Accessories: Phone grip inserts, strap pendants, and earphone case decorations.

Retail & Promotional Merchandise: Corporate promotional giveaways, anime/gaming character merchandise, and museum souvenir items.

OEM & ODM Customization

Factory engineering supports full-cycle custom development from technical drawings to mass production:

Tooling Engineering

In-house CNC mold fabrication and silicone master mold creation based on vector art (AI, PDF) or 3D CAD models (STEP, STL, IGES).

Color Matching

Spectrophotometer color formulation with physical pre-production (PP) master samples submitted for client sign-off.

Insert Configuration

Selection of loop materials (Stainless Steel 304, brass, zinc alloy) and orientation (vertical, horizontal, or flush loop).

Surface Texturing

Mirror gloss polish, matte satin finish, or micro-debossed/embossed logo branding.

Quality Control

Production adheres to a three-stage in-house inspection protocol:

Incoming Material Inspection

Verification of liquid resin viscosity, hardener purity, and pigment dispersion consistency.

In-Process Monitoring

Periodic sampling during casting and thermal/UV curing cycles to monitor exothermic temperature, bubble formation, and dimensional accuracy via digital calipers.

Finished Goods Testing

Pull-Tension Verification: Mechanically testing loop retention strength.
Drop & Impact Testing: Evaluating physical resilience.
Visual Defect Screening: Checking for surface pinholes, color matching compliance, and flash residue.
Third-Party Testing: Batch testing available via SGS or Intertek upon client specification.

Packaging & Shipping

Standard Industrial Packaging

Individual polybags, partitioned inner boxes, and multi-layer corrugated master cartons to prevent friction scuffing during international transit.

Retail-Ready Options

Custom header cards, blister packs, barcoded retail labeling, and eco-friendly paper packaging solutions.

Logistics & Freight

Air express (DHL/FedEx/UPS) for rapid prototyping and samples; sea freight (FCL/LCL) or air cargo for bulk volume orders.

Export Documentation

Commercial invoices, packing lists, Certificate of Origin (CO), and Material Safety Data Sheets (MSDS) provided with every shipment.

Frequently Asked Questions

Q: What is the Minimum Order Quantity (MOQ) for custom resin charms?

A: MOQ is typically 500 pieces per design and colorway, subject to adjustment based on mold complexity and size specifications.

Q: How do you guarantee color accuracy against our brand identity guidelines?

A: We utilize spectrophotometer color matching against Pantone C/U swatches and require physical PP sample approval before initiating full batch casting.

Q: What file formats are required for custom mold development?

A: Vector files (AI, PDF) for 2D flatback designs, or 3D CAD files (STEP, IGES, STL) for sculpted 3D multi-level charms.

Q: Are your resin charms compliant with international chemical regulations?

A: Yes. Raw materials comply with EU REACH SVHC and RoHS directives, certified free of restricted phthalates, lead, and cadmium.

Q: What is the standard lead time for sampling and bulk production?

A: Prototype sample tooling and casting require 5 to 7 working days. Bulk mass production requires 12 to 18 working days depending on order volume.

Request a Quote

Submit your technical requirements to receive a formal factory quotation within 24 hours.
Required RFQ Parameters:
Design vector file or 3D CAD model.
Target dimensions and thickness.
Pantone color references.
Order quantity per design.
Delivery destination port or postal code.

With abundant experience, we are one of the most professional resin charms manufacturers and suppliers in China. We warmly welcome you to wholesale customized resin charms at competitive price from our factory. For free sample, contact us now.

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