XHGPZB450 Borosilicate Double‑Wall Cup – 450ml Heat‑Resistant Glass Mug | Factory OEM Supplier

Product Parameters

Updated on September 2, 2026

Product Features

• Double‑Wall Insulation — Helps maintain beverage temperature and keeps the exterior cool to the touch.

• High‑Quality Borosilicate Glass — Resistant to thermal shock, suitable for hot and cold drinks.

• Lightweight & Comfortable — Only 155g, easy to hold and ideal for everyday use.

• Crystal‑Clear Transparency — Enhances the visual appeal of coffee, tea, milk, juice, and specialty drinks.

• OEM/ODM Friendly — Supports logo printing, decals, frosting, and custom packaging.

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Double-Wall Borosilicate vs. Single-Wall Soda-Lime Mug

Manufacturing & Quality Assurance

The XHGPZB450 Double‑Wall Borosilicate Cup is produced through a controlled manufacturing process designed to ensure clarity, durability, and safe daily use. Each step is monitored to meet international standards for drinkware used in homes, cafés, hotels, and retail environments.

1. High‑Temperature Borosilicate Forming

The cup is made using heat‑resistant borosilicate glass, shaped at high temperatures to achieve stable structure and consistent wall thickness. This process improves thermal shock resistance and ensures the double‑wall cavity is clean and uniform.

2. Double‑Wall Sealing & Pressure Testing

Each cup undergoes sealing and pressure checks to confirm the inner and outer walls are securely bonded. This prevents moisture entry, air leakage, and structural weakness—critical for long‑term use in both hot and cold beverage service.

3. Handle Bonding & Strength Inspection

The handle is attached using a controlled heating process that ensures strong adhesion without visible marks. Every batch is tested for load‑bearing strength to guarantee safe handling in commercial settings such as cafés and hotels.

4. Surface Clarity & Smoothness Check

The cup is inspected for clarity, smooth edges, and defect‑free surfaces. This includes checking for bubbles, scratches, and uneven polishing to maintain a premium appearance suitable for retail and gift packaging.

5. Export‑Grade Packaging Protection

To reduce breakage during international shipping, each cup is packed with shock‑absorbing materials and reinforced cartons. Packaging is tested for compression, vibration, and drop resistance to ensure safe arrival for distributors and retailers.

Application Scenarios

FAQ

Q1: What is the small dot on the bottom of the double-wall glass mug?

A1: It is a hydrophobic vent hole sealed with food-grade silicone. It balances air pressure between the double glass walls during temperature changes, preventing the glass from bursting when hot or cold liquids are poured inside.

Q2: Can we customize this mug with bamboo lids or custom brand logos?

A2: Yes. We supply custom bamboo lids, silicone covers, high-temp decal logo printing, and laser-engraved branding on both the glass body and custom packaging boxes.

Q3: Is model XHGPZB450 dishwasher and microwave safe?

A3: Yes. High borosilicate glass handles microwave heating easily. For dishwashers, we recommend top-rack placement on mild cycles to preserve outer decal prints over long-term use.

Q4: Is Xinghuo Glass a direct manufacturing factory or a trading company?

A4: Xinghuo Glass is an integrated factory and foreign trade enterprise. We manufacture our glassware in-house and handle export logistics directly, cutting out middlemen to offer competitive factory pricing, reliable quality control, and direct OEM support.

Q5: How are double-wall glasses packed to prevent damage during long-distance shipping?

A5: Each mug is encased in individual bubble wrap or molded EPE foam inside an inner gift box, then packed into 5-ply export master cartons. For sea freight, pallets are stretch-wrapped and corner-reinforced. Damaged items in transit are replaced or credited upon photo proof.