Custom Silicone Case
Food-grade Silicone Cap Sleeve Keychain for Perfume Essence Bottle

Project Brief
Customer
Requirements
Custom high-quality food-grade silicone cap-sleeve keychain for perfume essence bottles. The main body is integrally molded with silicone, featuring excellent elastic wrapping performance and perfume-solvent corrosion resistance, which can closely fit and lock essence bottle caps to prevent collision, scratches and loosening.
The brand LOGO on the surface adopts mold integrated embossing molding technology, eliminating secondary processes such as epoxy dripping, printing and pasting. The LOGO is an integrated structure of the same material as the silicone sleeve. The pattern is three-dimensional and clear with distinct layers and smooth rounded edges. It has super strong adhesion without peeling, wear flatting, yellowing or fading after long-term use.
The silicone sleeve features uniform thickness, flat surface, smooth outline and excellent resilience. The built-in locking structure fits various essence bottle caps with stable fastening performance. Complying with food contact safety standards, the product is resistant to perfume solvent immersion, water and oil, easy to clean, aging-resistant, and free of hardening, deformation and delamination after repeated use. It is suitable for perfume brand supporting accessories, essence gift sets, corporate business gifts, store cultural and creative gifts and event souvenirs, integrating cap protection, portable carrying and three-dimensional brand display to meet high-end customized gift needs.
A professional brand service provider focusing on cultural and creative products, corporate gifts and perfume-essence supporting accessories.
It specializes in high-end customized fragrance peripherals, daily accessories and business gifts, focusing on safe, compliant, durable, aesthetically unified and brand-empowered fragrance peripheral customization. It serves perfume and essence manufacturers, emerging fragrance brands, government and enterprise institutions, e-commerce gift merchants and end consumers, meeting full-scenario customization needs including brand original supporting, gift box customization, corporate benefits, festival gifts and store drainage gifts.
Ideal for daily protection and storage of perfume and essence sample bottle caps to avoid collision, scratches and liquid leakage during carrying and transportation; used as a portable keychain for easy daily carrying and storage; served as original brand peripherals for fragrance and essence brands to unify brand visual identity; exclusive accessories for essence gift boxes and fragrance sets to enhance gift grade; drainage gifts and member benefits for offline stores; customized corporate business gifts, event souvenirs and festival employee benefits.
Compatible with multiple sizes of essence and fragrance sample bottle caps, and can be matched with metal key rings, D-clips and woven lanyards.
Made of food-contact grade eco-friendly silicone, safe and odorless without harmful precipitation, with excellent resilience and perfume-solvent corrosion resistance, ensuring stable wrapping and locking for bottle caps.
The product features regular and smooth outline, uniform thickness, no burrs, no deformation and no obvious mold lines with high flatness.
The surface LOGO adopts mold integrated embossing molding technology without secondary processing. The LOGO is accurately positioned, three-dimensional raised, clear in layers and smooth in edges, completely avoiding offset, bubbles, glue overflow, peeling, color difference and yellowing caused by epoxy dripping and printing processes.
Integrated with the silicone sleeve, the embossed LOGO is scratch-resistant, friction-resistant, washable and resistant to repeated perfume solvent wiping, keeping clear and complete without blurring, wear or peeling after long-term use. The product has excellent compression resistance, tear resistance, aging resistance and yellowing resistance, waterproof and oil-proof, easy to clean, no odor absorption, reusable and long-term storage with stable structure and no deformation. It integrates food-grade safety, structural durability, high-end texture and standardized brand display, suitable for high-end gift giving and brand supporting needs.
Adopt precise 3D dimensional modeling and customize exclusive precision hydraulic molds according to the actual size parameters of essence bottle caps. During mold finishing, the brand LOGO pattern is precisely engraved inside the mold cavity to realize integrated molding of silicone sleeve and embossed LOGO in one mold without any secondary processing.
High-quality food-grade solid silicone raw materials are selected, mixed, colored and quantitatively cut, then integrally molded by constant-temperature and high-pressure hydraulic compression. The LOGO lines inside the mold cavity are directly copied and cured on the silicone sleeve surface with three-dimensional and full patterns, smooth edge transition and clear layers. The finished product has uniform thickness, smooth outline and accurate inner locking structure without burrs, deformation or bubbles.
Compared with traditional epoxy dripping and printing LOGO processes, the mold integrated embossing process requires no subsequent processing. The LOGO and product body are an integral structure of the same material, which greatly improves adhesion, wear resistance and solvent resistance, completely solving the problems of peeling, wear, yellowing and fading. Full-process refined quality control ensures high consistency of batch products in size, appearance and LOGO effect. Hardware accessories such as metal key rings, D-clips and lanyards can be assembled in the later stage.
The main body is made of food-contact grade eco-friendly silicone with formal food-grade safety certification, non-toxic, odorless and environmentally friendly. It contains no harmful substances such as BPA, phthalates and heavy metals, fully complying with food contact and perfume solvent contact safety standards.
The material is highly elastic and tough, tear-resistant, compression-resistant and wear-resistant, with excellent perfume-solvent corrosion resistance, high and low temperature resistance, waterproof, oil-proof and anti-aging properties. It is not easy to yellow, harden, deform or aging after long-term contact with perfume solvents, water washing and alcohol disinfection, with no odor absorption, easy cleaning, long service life and high safety compliance.
The LOGO is integrally embossed with the same silicone material without additional epoxy or printing materials, realizing unified material, structure and performance without delamination risks. Matching hardware accessories include metal key rings, electroplated D-clips and woven lanyards, which can be electroplated for rust and oxidation resistance for long-term daily use.
Engineered Response
Final Successful Solution

The whole product is integrally compression molded with food-grade high-elastic eco-friendly silicone. The silicone sleeve keychain is smooth and rounded without sharp edges, burrs, bubbles or deformation defects, with uniform and flat thickness, avoiding distortion, depression, rebound failure and local deformation.
The surface brand LOGO adopts mold integrated embossing molding technology, which accurately reproduces patterns through customized precision molds without secondary processing. The LOGO is three-dimensional raised, clear in pattern, unified in color, regular in edges and strong in three-dimensional layers, integrated with the sleeve body. It has super wear resistance, scratch resistance, water washing resistance and repeated perfume solvent wiping resistance, without peeling, wear, yellowing, fading and blurring after long-term use, completely avoiding various defects of traditional epoxy dripping and printing processes.
Adopting a high-elastic inner locking structure, the product fits multiple specifications of essence bottle caps closely and stably to protect caps from collision and scratches with excellent resilience. The seamless integrated structure is firm and stable, resistant to stretching, bending and compression without permanent deformation. It is waterproof, oil-proof, easy to clean and odor-absorbent, passing full-process food-grade safety inspection. It perfectly integrates three core functions: bottle cap protection, portable carrying and three-dimensional brand display, balancing practicality, durability and high-end brand gift texture.
Production Workflow
How was the silicone cap sleeve keychain produced and inspected?
Open the complete silicone cap sleeve process guide+
Detailed Process
Material Preparation & Rubber Mixing
Select high-purity food-grade eco-friendly silicone raw materials and conduct precise mixing and color matching with food-grade compliant color masterbatch. Proportion raw materials strictly according to product hardness, thickness, weight and rebound indicators, and cut rubber materials quantitatively. Impurities and defective rubber materials are screened and eliminated throughout the process to unify the hardness, color and elasticity parameters of each batch, ensuring safety compliance, consistent quality and stable structural elasticity of finished products from the source.
Mold Engraving & Preheating
According to the customer’s LOGO source file and essence bottle cap size parameters, high-precision CNC engraving is performed on the dedicated precision mold, and the brand LOGO lines are accurately engraved inside the mold cavity to ensure clear embossed lines, uniform depth and regular edges. After engraving, the mold is deeply cleaned to completely remove dust, oil stains and residual impurities. The mold is fixed on a hydraulic vulcanization equipment for constant-temperature preheating and parameter debugging to accurately set molding temperature, pressure and vulcanization time and stabilize molding conditions.
Feeding & Mold Closing & Venting
Quantified and qualified food-grade silicone raw materials are accurately placed into the mold cavity with precise alignment. Multiple layered venting processes are carried out after mold closing to fully discharge internal air, effectively avoiding defects such as bubbles, material shortage, depressions, uneven thickness and incomplete LOGO lines, ensuring complete outline, standard inner structure, clear embossed LOGO and controllable dimensional tolerance of silicone sleeves.
High-temperature Vulcanization & Integrated Molding
Adopt constant-temperature and pressurized high-temperature vulcanization process to fully cross-link and cure silicone raw materials, realizing seamless integrated synchronous molding of the silicone sleeve body and embossed LOGO, with compact structure, uniform elasticity and complete LOGO shaping. It greatly improves the product’s compression resilience, tear resistance, perfume solvent resistance and aging resistance, ensuring no deformation, hardening or failure after repeated assembly and disassembly, long-term solvent contact and daily use, and extending service life.
Demolding & Air Cooling Shaping
After vulcanization, the mold is opened stably and the silicone sleeve blanks are taken out completely. The natural air cooling shaping process with precise temperature control is adopted for slow cooling and curing to fully release molding internal stress, effectively eliminating product distortion, local deformation, dimension offset and LOGO deformation, ensuring the standardization, flatness, dimensional consistency and unified LOGO three-dimensional effect of all finished products.
Fine Trimming & Polishing
Manual fine trimming and chamfer polishing are carried out on the cooled and shaped blanks to completely remove excess burrs and sharp edges. The overall outline and LOGO edges are polished to be smooth and rounded without sharp corners, improving the delicate texture and wearing feel, avoiding scratching bottle caps and hands, and meeting the process standards of high-end gift products.
Dust-free Cleaning
Comprehensive dust-free cleaning is performed on the trimmed and polished finished products to remove surface dust, oil stains, static electricity and residual impurities, ensuring the surface is clean, dry and dust-free, providing a good foundation for subsequent assembly processes and avoiding residual impurities affecting product texture and use safety.
Hardware Accessories Assembly
Based on the reserved precise assembly holes of the product, electroplated anti-rust metal key rings, D-clips, woven lanyards and other accessories are precisely assembled and fixed with tight and stable fitting without looseness. The assembled product is simple and exquisite in shape and stable in structure, suitable for daily wearing, storage and gift display.
Final Quality Inspection & Sterile Warehousing
After assembly, the finished products are treated with secondary high-temperature deodorization and sterile cleaning to completely eliminate residual raw material odor and ensure safety in perfume contact. Full-dimensional final quality inspection is carried out on core indicators including appearance flatness, outline standardization, dimensional tolerance, silicone resilience, embossed LOGO clarity, three-dimensional degree, edge regularity, wear and solvent resistance, and food-grade safety compliance. All qualified products are sterilely and individually packaged and stored in classified warehouses, fully complying with the batch delivery standards of high-end cultural and creative gifts.
Main Sales Slogan
Main Sales Slogan
English: Mold integrated embossed LOGO molding, food-grade high-elastic silicone for tight cap protection, no secondary process defects, wear and corrosion resistant without peeling. It integrates bottle cap protection, portable carrying and high-end brand display, suitable for full-scenario fragrance gift customization.
Start Your Project
Review Your Silicone Cap Sleeve Keychain Requirements
Send the bottle cap dimensions, silicone requirements, logo artwork, accessory choice, target quantity and intended use so the sleeve structure, molding route and branding details can be reviewed together.





