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

Borosilicate Double-Wall

Air-gap insulation keeps drinks hot 2× longer. Outer wall stays cool to the touch at 155g. Full transparency shows layered drinks. Thermal shock range: −20°C to 150°C.

Best for: specialty coffee, retail gift sets

Ceramic Mug

Solid walls absorb and retain heat well, but weigh 300–450g. No visual appeal — opaque surface. Thermal shock limit around 60°C. Microwave-safe but heavy for daily use.

Best for: home kitchen, office break room

Single-Wall Soda-Lime Glass

Clear and lightweight but no insulation — transfers heat fast and sweats condensation rings on surfaces. Prone to cracking above 60°C temperature swings.

Best for: cold drinks, budget lines

Stainless Steel Tumbler

Strong insulation and impact-resistant, but opaque — no drink visibility. Retains metallic taste for sensitive beverages. Heavier and not microwave-safe.

Best for: outdoor, travel, kids

High-Temp Double-Wall Forming

Borosilicate batch blown at high temperature into nested molds, creating the inner and outer walls with a sealed air gap. Wall thickness is held to ±0.3mm across batches.

Sealing & Pressure Test

Each cup is pressure-tested at the base seal to confirm the double-wall cavity is airtight. Prevents moisture ingress and ensures long-term insulation performance.

Handle Bonding & Surface Check

One-piece handle is heat-bonded without visible marks. Each cup is inspected for clarity, smooth edges, bubbles, and scratches before packaging.

Export Packaging & Drop Test

Individual bubble wrap + inner gift box + 5-ply master carton. Compression and drop-tested for ocean freight. Damaged units credited on photo proof.

Packing Configuration

Each mug wrapped in individual bubble bag, placed inside a retail gift box, then packed in a 5-ply corrugated export master carton with dividers.

Lead Time & Ports

Sample lead time: 5–7 days. Bulk production: 20 days. Ships from Shanghai, Ningbo, Guangzhou, or Shenzhen per buyer preference.

Custom Packaging

Custom color boxes, bamboo lid options, silicone covers, laser-etched logos, and decal branding available from MOQ 5,000 pieces. FCL pallets shrink-wrapped with corner protection.

Specialty Coffee Chain Rollout

Supplied 15,000 double-wall mugs with laser-etched logos for a 40-location coffee chain. Consistent wall thickness and handle bond across all units.

Retail Gift Box Collection

Produced 8,000 mugs with custom color-box packaging and bamboo lids for a tea brand's holiday gift line. Delivered in 20 days with zero breakage.

E-Commerce Private Label

A Shopify brand ordered 10,000 mugs with branded packaging and molded EPE foam inserts for Amazon FBA. Drop-tested at 1.2m height — passed on first run.

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

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

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

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.

Is XHGPZB450 dishwasher and microwave safe?

Yes. High-borosilicate glass handles microwave heating without issue. For dishwashers, we recommend top-rack placement on mild cycles to preserve any outer decal prints over long-term use.

Is Xinghuo Glass a direct factory or a trading company?

Xinghuo Glass is an integrated manufacturer and export operator. We produce glassware in-house and handle export logistics directly, providing factory pricing, quality control, and direct OEM support without middlemen.

How are double-wall glasses packed to prevent shipping damage?

Each mug is wrapped in individual bubble wrap or molded EPE foam inside an inner gift box, then packed into 5-ply export master cartons. FCL pallets are stretch-wrapped and corner-reinforced. Damaged items credited on photo proof.

What temperature range can this mug handle?

XHGPZB450 withstands −20°C to 150°C (−4°F to 302°F) without thermal shock damage. You can pour boiling water into a chilled mug or place it in a freezer — the borosilicate structure prevents cracking.