Your Professional Personalized Thermos Flask Supplier
Established in 2006, Shanghai Bangkun Precision Mold Co., Ltd. is a professional manufacturer specializing in precision mold development and injection molding for household products such as thermos cups and vacuum flasks. Located in Jinshan District, Shanghai, the company operates a complete production line supported by experienced engineering and production teams with extensive industry knowledge. Our factory is equipped with advanced CNC machining centers, precision mold processing equipment, and injection molding machines to ensure stable quality and efficient production. Through strict quality control systems and reliable manufacturing capability, we have established long-term cooperation with well-known brands including SUPOR and Joyoung, earning trust in the household products manufacturing industry.
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Personalised Thermal Water Bottle
Make a lasting impression with the Logo Design 1.5L Thermos Flask, a personalized thermal water bottle that expertly balances classic style with promotional practicality. This Logo Design Red Thermos
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Embrace a fresh and elegant look with the 1.5L Pink Thermos Flask, a vessel designed to appeal to modern sensibilities. This Logo Design Pink Thermos Flask features a soft, soothing pastel pink
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Infuse your day with a sense of calm and energy with the 1.5L Green Thermos Flask. This Logo Design Green Thermos Flask features a refreshing avocado-green finish complemented by a simple brand logo,
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Introducing the 1.5L Cream White Thermos Flask, a vessel that defines understated sophistication. This Logo Design Cream White Thermos Flask features a soft, warm neutral tone paired with a refined
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Elevate your serving style with the Insulated 1.5L White Thermos Flask, a carafe that masterfully combines minimalist aesthetics with robust functionality. This Logo Design White Thermos Flask
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Why Choose Us
Our Certificate
Certified under the ISO9001 quality management system, we maintain strict quality control standards throughout every stage of production to ensure stable and reliable product quality.
OEM and ODM services
Our experienced team provides complete ODM/OEM solutions, covering customized product development, mold design, manufacturing, production delivery, and after-sales support.
Production Capacity
With a mature production system and efficient manufacturing process, our 1.5-liter kettles achieved annual sales of over 1 million units in both 2022 and 2023.
Sales Market
Through cooperation with leading household appliance brands, our products have gained broad market presence and customer recognition across the industry.
Thermos Mug Pink
Thermos Mug Pink is a specialized container designed to maintain the temperature of liquids for extended periods. It achieves this through the use of a vacuum between two walls, which minimizes heat transfer and keeps drinks either hot or cold. This functionality makes it an ideal choice for personal use, outdoor activities, or professional settings where maintaining beverage temperature is essential.

Superior Insulation: Glass maintains temperature more effectively than plastic due to its lower thermal conductivity and compatibility with full vacuum sealing.
No Chemical Leaching: Unlike some plastics that may contain BPA, phthalates, or other endocrine-disrupting chemicals, glass is inert and does not leach harmful substances into drinks, even when exposed to heat.
Odor and Stain Resistance: The non-porous surface of glass resists absorbing odors and stains from coffee, tea, or acidic beverages, keeping your flask smelling fresh and looking clean.
Eco-Friendly & Long-Lasting: Glass is recyclable and doesn't degrade over time like plastic, which can become cloudy or brittle. With proper care, a glass-lined flask can last for many years.
Easier to Clean: Glass doesn't retain residues, making it dishwasher-safe and simple to hand-wash without worrying about lingering smells or discoloration.
Type of Thermos Mug Pink
Standard Thermos Flasks
The most widely used type, standard glass-lined thermoses are designed for everyday household and office use. Available in capacities ranging from 300ml to 2000ml, they are perfect for keeping tea, coffee, milk, or soup hot throughout the day.
Thermos Flasks
Designed for portability and convenience, travel thermoses are compact, lightweight, and often feature spill-proof lids, one-touch opening mechanisms, and ergonomic designs. Many models include built-in cups or foldable handles for easy carrying.
Infusion Flask
Infusion flasks come equipped with a removable strainer or infuser basket, allowing users to brew tea, fruit-infused water, or herbal drinks directly inside the flask. The glass lining ensures no flavor contamination, preserving the freshness of infused beverages.
Food Jar Thermos
These are larger-capacity glass-lined containers designed specifically for storing hot meals like soups, stews, rice, or noodles. They feature wide mouths for easy filling, serving, and cleaning, and are excellent for maintaining food temperature during lunch breaks or outdoor activities.
Sport Flask
Built for active lifestyles, sport flasks feature anti-skid bases, wide mouths for fast filling, and convenient drinking mechanisms such as straws or squeeze nozzles. Designed for use during workouts, hikes, or outdoor adventures.
Tea & Coffee Thermos
Specialized flasks tailored for tea and coffee lovers. Many include built-in filters, presses, or strainers that allow brewing directly in the flask. These maintain optimal brewing temperatures while preventing over-extraction.
Applications of Thermos Mug Pink
Daily Commuting & Office Use
Ideal for carrying morning coffee or herbal tea, these flasks maintain temperature throughout the workday. Their elegant design complements professional settings, and the absence of plastic ensures no chemical aftertaste.
Fitness & Outdoor Activities
Perfect for hikers, cyclists, and gym-goers who want to stay hydrated with cold water or protein shakes. The durable construction withstands rugged conditions, and the insulation keeps drinks refreshing.
Travel & Adventure
Whether on a road trip or camping excursion, these flasks allow travelers to enjoy hot soups, tea, or cold beverages without relying on external heating or cooling sources.
Cafés & Educational Institutions
Many cafes encourage reusable containers, and students appreciate the eco-friendly, stylish, and safe nature of glass flasks. They promote sustainability while reducing single-use waste.
Heat and Cold Retention Times: Most premium flasks retain heat for 12–24 hours and cold for 24–48 hours. Check manufacturer specifications for exact figures under standardized test conditions (e.g., starting at 95°C for hot water).
Real-World Testing Method: Conduct a simple home test: fill the flask with boiling water or ice-cold water, seal it tightly, and measure the temperature after 6, 12, and 24 hours. Minimal temperature change indicates excellent insulation.
Factors Affecting Performance: Pre-warming or pre-chilling the flask before use can enhance retention. Also, avoid overfilling or leaving the lid open frequently, as this reduces efficiency.
Temperature Stability Across Conditions: High-end models maintain consistent temperatures even in extreme outdoor environments, making them ideal for camping, hiking, or travel.

Sealing Performance of Thermos Mug Pink
Leakage Test at Home: Fill the flask with water, tighten the cap, and turn it upside down for 5–10 minutes. Shake gently to simulate movement. If no water leaks out, the seal is effective.
Sealing Mechanism Types: Look for flasks with silicone gaskets, threaded lids, or push-button mechanisms with locking features. Replaceable seals are a plus for long-term maintenance.
Pressure Resistance: Some flasks build slight internal pressure when holding hot liquids. A good seal should handle this without popping open or dripping.
User-Friendly Design: Consider ease of opening—especially for children or elderly users—without compromising on leak protection. Flip-top, straw, or wide-mouth designs offer different trade-offs between convenience and security.
Tips for Choosing the Right Design
Match Lifestyle
Choose a design that fits your daily routine—sleek for office use, rugged for outdoor adventures, or artistic for self-expression.
01
Consider Durability
While glass-lined interiors offer excellent insulation, ensure the outer casing provides adequate protection against drops and impacts.
02
Prioritize Sustainability
Look for brands that use recycled materials, offer repair programs, or support environmental causes.
03
Check Customization Options
If personalization matters, select a model that allows engraving, decal application, or interchangeable sleeves.
04
Balance Aesthetics and Function
Ensure the design doesn’t compromise usability—verify lid type, ease of cleaning, and portability before purchasing.
05
Maintain
Regular Cleaning
Wash the flask after each use with warm, soapy water. Use a bottle brush to reach interior surfaces without scratching the glass.
Avoid Abrasives
Never use steel wool, harsh scrubbers, or abrasive cleaners, as they can scratch the glass and create sites for bacterial buildup or weaken structural integrity.
Lid and Seal Care
Disassemble the lid and clean all components (seals, gaskets, spouts) separately. Replace worn or cracked seals promptly to prevent leaks and maintain insulation.
Drying
Allow all parts to air dry completely before reassembling to prevent mold or odor development.
Storage
Store the flask with the lid off or loosely attached in a cool, dry place. Avoid prolonged exposure to direct sunlight, which can degrade plastic components and discolor liquids over time.
Temperature Management
Avoid sudden temperature changes—don’t pour boiling water into a cold flask or place a hot flask on a cold surface immediately.
FAQ
As one of the most professional personalized thermos flask enterprises in China, we're featured by quality products and low price. Please rest assured to buy discount personalized thermos flask for sale here and get pricelist from our factory. We also accept customized orders.
1 5L Cream White Thermos Flask, Logo Design Pink Thermos Flask, Insulated Logo Design 1 5L Thermos Flask




