Lecos
Lecos
Explore our core product lineup featuring elite manufacturing standards, engineered seals, and custom designs for global beauty and packaging industries.
The international packaging industry is undergoing a profound paradigm shift. As corporate conglomerates commit to meeting rigorous ESG (Environmental, Social, and Governance) targets, the demand for sustainable, non-reactive material combinations has skyrocketed. Within this shifting paradigm, the combination of premium borosilicate or soda-lime glass with food- and medical-grade silicone closures has emerged as a gold standard across the cosmetics, pharmaceutical, food and beverage, and chemical laboratory sectors.
Highly resistant to chemical degradation. Ideal for housing highly active skincare concentrates, essential oils, and acidic/alkaline compounds without risk of packaging leaching.
Excellent elastic recovery properties. Silicone adapts to microscopic surface imperfections on glass thread finishes, achieving gas-tight and leak-proof seals.
Infinitely recyclable glass paired with non-toxic, long-lasting silicone components aligns with consumer shifts toward zero-waste refills and container reuse.
China remains the undisputed epicenter of glass and silicone integration due to deep supply chain networks, industrial cluster efficiency, and major advances in manufacturing technology. Sourcing from Chinese suppliers yields a distinct structural advantage:
Leading Chinese factories employ automated Individual Section (IS) glass-forming machinery, high-precision automated mold tooling, and closed-loop liquid silicone rubber (LSR) injection systems. This ensures dimensional tolerances within fractions of a millimeter, critical for securing a perfect, leakproof mating interface between the glass bottle neck and the silicone lid.
Working with factories in regions like Zhejiang and Jiangsu provides immediate access to secondary processing services including high-vacuum electroplating, precision acid-etch frosting, eco-friendly water-based spray finishes, multi-color silk-screen printing, and hot stamping. Brands can manage all operations under one supplier, mitigating risks and reducing logistical overhead.
A decade of commitment to cosmetic and pharmaceutical packaging innovation.
Lecos Glass has been dedicated to the glass packaging industry for over 10 years with our innovative wholesale glass bottles and jars for cosmetics, perfume, personal care, essential oils and candle jar glass packaging. We pride ourselves in being good at offering bespoke glass bottles to our clients. Basically, we have a large range of glass bottles, jars, and accessories you'll ever need! Although we have hundreds of products, our collections include:
Lecospack provides professional glass cosmetic packaging solutions to worldwide customers. With years of experience in the field, we are capable of providing innovative, stable quality, and cost-effective packaging according to our customers' DNA. The quality of our glass products is strictly controlled, winning the favor of both domestic and foreign customers, and we work with many brands directly and indirectly. We also offer all kinds of customized deep processing for glass bottles, such as frosting, electroplating, spraying, decal, and silkscreen printing. We insist on playing a supportive role in the glass beauty industry.
Built on a solid foundation of deeply held values that steer our daily manufacturing operations.
From raw materials processing to final optical sorting, we employ stringent QC checkpoints to guarantee clean, structural glass.
Our localized industrial integration in China permits high volume optimizations, offering direct factory pricing without agent markups.
24/7 technical customer support, streamlined shipping logistics, custom mould design consultations, and full post-sale warranty options.
Our company is built on a solid foundation of deeply held values that set us apart, steer our actions, and infuse every aspect of our corporate culture. These values are not just words; they are the principles that guide how we operate daily. Central to our business practices are our unwavering commitment to social responsibility, adherence to ethical standards, and steadfast support for universal human rights. We are also dedicated to protecting the environment and making a positive impact in the communities where we live and work. We believe in fostering creativity and innovation, celebrating and embracing the richness of diversity, and treating our employees with the utmost respect and care.
Illuminated by the high aesthetics and elegance of the most famous luxury brands.
Industrial performance profiles specify the precise grade of glass and matching silicone seal required. Here is a breakdown of optimized applications:
Modern clinical formulas (such as Pure Vitamin C, Retinol, Hyaluronic Acids, and Peptide serums) are highly vulnerable to oxidation and packaging degradation. The use of a dense glass structure prevents oxygen transmission, while a medical-grade liquid silicone rubber (LSR) dropper bulb maintains a tight seal. This ensures the potency of volatile compounds is kept secure throughout the product's shelf-life.
High concentrations of terpenes found in pure essential oils interact aggressively with standard plastics like polyethylene (PE) and polystyrene (PS), leading to cracking and oil contamination. Fluorinated or platinum-cured silicone combined with amber, cobalt blue, or opaque black glass bottles protects volatile chemical compounds from destructive UV radiation while providing high gas tightness.
Premium soy- and coconut-wax candle formulations demand robust heat management. Thick soda-lime container glass is paired with specialized heat-resistant silicone lids. The airtight silicone ring traps volatile fragrance oils, preserving the candle's aroma throw until the product is unsealed by the consumer.
In chemical laboratory setups, inert properties are non-negotiable. Type I Borosilicate Glass bottles combined with autocalvable silicone liners allow developers to safely autoclave contents at 121°C without risking micro-crack expansion or closure melting.
When engineering high-precision cosmetic or pharmaceutical packaging, choosing the correct material configurations is vital. The table below highlights the key physical properties of the materials we supply:
Procuring custom packaging from China requires clear QA procedures. Ensure your chosen manufacturer implements these key steps:
As the market shifts towards sustainable practices, three key packaging trends have emerged:
Designs utilizing durable outer glass housings with replaceable inner cartridges, sealed with flexible, reusable silicone lids.
The incorporation of Post-Consumer Recycled (PCR) glass into factory production runs to further reduce carbon footprints.
The replacement of plastic labeling with clean laser etching and non-toxic water-based spray finishes.
A complete selection of industry-grade packaging components ready for customized production runs.
Supplying packaging solutions for luxury brands and manufacturing projects worldwide.
Engineered glass containers with customized seals and cap assemblies.
Technical and logistics guidance for global procurement teams and brand managers.