Contact Sales on +44 (0)1472 240940
Middle East supply disruption
Discover BlueSky’s comprehensive range of wholesale aluminium screw caps and lids, expertly engineered to deliver secure sealing across personal care, beverage, food, and home care applications.
From compact 18mm closures to substantial 100mm lids, our aluminium caps combine superior functionality with sophisticated aesthetics. With infinite recyclability, EPE liner technology, and extensive customisation options, these closures elevate brand presentation while supporting circular economy principles.
Showing 1–16 of 24 results
Aluminium has become the closure material of choice for premium brands seeking both exceptional performance and sustainability credentials.
As the world’s most recycled material, aluminium caps offer unmatched environmental benefits while delivering the airtight sealing and luxury appearance that modern consumers expect.
Aluminium can be recycled endlessly without quality degradation, making it the ultimate circular economy material. Over 75% of all aluminium ever produced remains in use today.
Creates airtight, moisture-proof seal that preserves product integrity, extends shelf life, and protects sensitive formulations from oxidation and contamination.
Naturally resistant to corrosion and chemical reaction, ensuring long-term performance across diverse product applications including acids, alcohols, and aggressive formulations.
Robust construction withstands shipping and handling while remaining significantly lighter than alternative materials, reducing transportation costs and carbon emissions.
Distinctive brushed, polished, or lacquered finishes communicate quality and sophistication, positioning products in premium market segments.
Pilfer-proof bands and ROPP (Roll-On Pilfer-Proof) designs provide visible evidence of first opening, ensuring consumer safety and regulatory compliance.
Maintains structural integrity and sealing performance across temperature variations, suitable for products requiring sterilisation or refrigeration.
Its light weight, durability, and infinite recyclability offer significant economic advantages and lower long-term expenses over other plastic alternatives.
Small Format Caps (18mm – 24mm)
Neck Finishes: 18/410, 18/415, 20/410, 22mm, 24/410
Ideal For: Essential oils, dropper bottles, small personal care bottles, cosmetic serums, fragrance samples, pharmaceutical preparations
Applications: Aromatherapy oils, CBD tinctures, facial serums, nail care products, small beverage samples
Standard Format Caps (28mm – 38mm)
Neck Finishes: 28/400, 28/410, 28/415, 28 ROPP, 38/400
Ideal For: Standard beverage bottles, personal care bottles, gourmet food jars, spirit bottles, home care products
Applications: Craft spirits, olive oil, shampoo, body wash, premium sauces, specialty beverages
Medium Format Lids (43mm – 48mm)
Neck Finishes: 43/400, 45/400, 48/400
Ideal For: Wide-mouth bottles, medium jars, supplement bottles, food containers
Applications: Protein powders, vitamin bottles, gourmet confections, specialty foods, bulk personal care
Large Format Lids (70mm – 100mm)
Neck Finishes: 70/400, 89/400, 100/400
Ideal For: Wide-mouth jars, tin lids, large-format containers, bulk storage
Applications: Aluminium tin lids, bulk supplements, large food jars, industrial containers, refill stations
BlueSky aluminium caps feature EPE (Expanded Polyethylene) lined closures that provide critical performance benefits:
Hermetic Sealing – Soft foam liner compresses against container rim creating airtight seal that prevents product leakage, oxidation, and moisture ingress.
Chemical Compatibility – Suitable for most cosmetic, personal care, beverage, and food formulations without interaction or contamination concerns.
Product Protection – Creates micro-climate inside container preventing air ingress that could degrade active ingredients or compromise product quality.
Leak-Proof Performance – Despite secure seal, EPE liners maintain easy opening and closing for consumer convenience while preventing leaks during shipping and storage.
Reusable Functionality – Unlike single-use seals, EPE liners maintain sealing integrity through repeated opening cycles, supporting refillable product concepts.
Conforms to Variations – Flexible foam material adapts to minor variations in container rim, ensuring consistent seal across production runs and different container materials.
Aluminium screw caps and ROPP closures have become the standard for craft distillers, artisan beverage producers, and premium spirit brands. The hermetic seal preserves authentic flavours while tamper-evident features ensure product integrity from distillery to consumer. Perfect for gin, vodka, rum, whisky, liqueurs, specialty wines, and craft beverages.
Luxury personal care products demand closures that match their quality. Aluminium screw caps create sophisticated solutions for shampoo, conditioner, body wash, hand wash, bath oils, serums, and premium cosmetics. The brushed finish communicates natural elegance while hermetic sealing protects formulations without requiring heavy preservative systems.
Premium food products including olive oil, specialty vinegars, gourmet sauces, honey, preserves, and artisan condiments benefit from aluminium’s superior barrier properties and luxury presentation. Corrosion-resistant construction ensures compatibility with acidic foods while elegant appearance positions products in premium retail segments.
Wide-mouth aluminium lids seal supplement bottles, vitamin containers, protein powder jars, and wellness products. The hermetic seal protects moisture-sensitive formulations while substantial appearance communicates quality to consumers.
Elevate household products with professional aluminium closures. Ideal for room fragrances, surface cleaners, fabric refreshers, and specialty cleaning concentrates requiring secure sealing and chemical resistance.
Tamper-evident aluminium caps meet stringent pharmaceutical requirements for medication bottles, compounded preparations, and over-the-counter products. ROPP and pilfer-proof designs provide regulatory compliance and consumer safety.
Hermetic Sealing Performance
Chemical Compatibility
Quality Standards
Comprehensive Range: 18mm to 100mm neck finishes across multiple styles serve diverse applications
Quality Assurance: Rigorous testing protocols ensure consistent sealing performance and quality
Sustainability Expertise: Infinite recyclability and circular economy leadership
Complete Solutions: Matching bottles, jars, and tins complement cap range
Customisation Capabilities: Embossing, lacquering, printing, and bespoke development
UK-Based Service: Local support with free sample shipping to mainland UK addresses
Technical Support: Sealing compatibility guidance and application recommendations
Market Knowledge: Decades serving beverage, personal care, food, and pharmaceutical brands
Premium, infinitely recyclable aluminium caps and lids that combine hermetic sealing with sophisticated presentation.
Contact Us Today:
Email: [email protected]
Phone: +44 (0)1472 240940
BlueSky – Your trusted partner for premium aluminium cap and lid packaging in the UK. Infinite recyclability, airtight sealing, sustainable excellence.
Aluminium creates an airtight, moisture-proof seal that protects product integrity, resists corrosion, and withstands temperature variation. It’s also infinitely recyclable, lightweight, and delivers a premium aesthetic — making it the closure material of choice for spirits, personal care, food, and pharmaceutical brands.
Ribbed caps feature vertical ribs for enhanced grip, making them easier to open — particularly for elderly users or those with reduced dexterity. Smooth caps offer a sleeker, more minimal aesthetic suited to luxury and premium brand positioning.
ROPP (Roll-On Pilfer-Proof) caps are applied via roll-on machinery, creating a custom-fit closure with a breakable tamper-evident security ring. They provide a hermetic seal and are widely used for spirits, wines, premium oils, and craft beverages.
Yes. Aluminium caps are corrosion-resistant across a wide pH range, making them compatible with acidic foods such as vinegars and sauces, as well as alcohols, essential oils, and aggressive cosmetic formulations.
EPE (Expanded Polyethylene) is a soft foam liner inside the cap that compresses against the container rim to create an airtight, leak-proof seal. It’s chemically compatible with most cosmetic, food, and beverage formulations, and maintains its sealing integrity through repeated opening and closing cycles.
Yes. Options include brushed, polished, lacquered, and anodised finishes, alongside embossing, debossing, screen printing, hot stamping, and digital printing. Custom colour matching, bespoke cap designs, and logo integration are also available (MOQ applies).
Yes. Our aluminium caps are food-grade approved for direct food contact, meet pharmaceutical standards, and are manufactured to ISO-certified quality protocols.
Caps range from 18mm to 100mm, covering small format (18mm–24mm) for serums and essential oils, standard format (28mm–38mm) for beverages and personal care, medium format (43mm–48mm) for supplement jars, and large format (70mm–100mm) for wide-mouth jars and bulk containers.
Horizon House
Estate Road Five
Grimsby
DN31 2TG
Please note: Free shipping is available to mainland UK addresses only. We review all requests and will reach out to you if we need any additional information before organising the shipment. Thank you for your interest!
Thank you for your enquiry, whilst this is an automated message, we want you to know that we have received your enquiry and will be responding to you soon!
If there is anything you wish to discuss urgently, please contact us on +44 (0)1472 240940.