What is the difference between fused quartz and fused silica?

Fused quartz is melted from purified natural quartz crystal, while fused silica is usually synthesized from silicon-containing chemicals such as SiCl4. Fused quartz offers excellent thermal performance at a lower cost and suits most furnace, lighting and laboratory uses; synthetic fused silica is chosen when the deepest UV transmission and lowest metallic impurities are required.

What temperature can your quartz glass tubes withstand?

Our transparent fused quartz tubes are typically used continuously up to about 1100 °C and for short periods up to about 1450 °C. The softening point is approximately 1683 °C. Because the thermal expansion coefficient is only about 5.5 × 10⁻⁷/°C, the tubes tolerate rapid heating and cooling far better than borosilicate glass.

Can you manufacture custom quartz parts from my drawing?

Yes. We have more than 11 years of OEM experience and offer OEM, ODM and buyer-label services. Send your drawing, material grade and quantity to info@kemzoquartz.com and our engineers will confirm feasibility, tolerances and lead time.

Which payment and delivery terms do you accept?

We accept T/T, L/C, PayPal and cash, in USD, EUR, AUD, HKD or CNY. Delivery terms include FOB, CFR, CIF, EXW, DDU, DAF and express door-to-door delivery.

How do you pack fragile quartz glass for export?

Each item is individually protected with foam or bubble cushioning, tubes are separated so they cannot touch, and cartons are secured inside export-grade wooden cases for sea and air freight. Packing can be adapted to your warehouse handling requirements.

Which countries do you export to?

Between 71% and 80% of our output is exported. Our main markets are North America, Eastern Asia including South Korea, Southeast Asia, Europe, South America and Oceania.

Top 10 UV Quartz Glass Factory & Supplier in the Kópavogur market

High-Purity Fused Quartz, Deep UV Optical Transmittance & Precision Thermal Solutions for Iceland’s High-Tech, Marine, and Geothermal Sectors

Featured High-Purity Fused Quartz Products

Precision-engineered quartz components tailored for extreme industrial, optical, and high-temperature vacuum applications.

Precision Flat-Cut Fused-Quartz Straight Process Tubes with 90-Degree Squared Ends for Vacuum CVD Chambers

Ultra-high purity straight fused quartz tubes engineered with zero-flaw 90-degree squared ends. Optimized for low chemical vapor deposition (CVD) thermal loss and resistance up to 1450°C.

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High Temperature Resistant Quartz Glass Circular Silica Custom Size Cutlery Use

Custom-machined silica discs offering high spectral transmission and near-zero thermal expansion. Ideal for high-heat laboratory containment, sight glasses, and specialty industrial applications.

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Precision Optical Fused-Quartz Square Plates with Chamfered Edges for Semiconductor Photomask Windows

Optical-grade synthetic fused silica plates with precision safety chamfers. Features >90% transmission at 254nm UV wavelength, specifically tailored for semiconductor photomask windows.

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Thermal Shock Resistant Transparent Fused Quartz Furnace Tube for High Temperature Processing

Heavy-wall clear fused silica tubing designed for severe thermal cycling. Immune to sudden drop temperatures up to 1100°C with exceptional structural integrity.

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Raw Rough-Ground Fused-Quartz Blank Plates with Straight Edges for Semiconductor Wafer Substrate Lapping

Industrial-grade quartz blank plates manufactured for chemical lapping, polishing carriers, and precision substrate polishing in semiconductor fabrication environments.

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High Purity Opaque Milky White Fused Quartz Rectangular Plate Sheet Slab

Sintered micro-bubble opaque silica structure providing supreme infrared thermal insulation, diffuse thermal reflection, and uniform thermal distribution in high-temp ovens.

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Optically Polished Single-Crystal Quartz Wafers with Chamfered Edges for Piezoelectric QCM Sensors

Single-crystal quartz substrate with Angstrom-level surface roughness (Ra < 0.5nm). Precision engineered for Quartz Crystal Microbalance (QCM) sensing, optical filters, and MEMS devices.

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Clear Fused-Quartz Petri Dishes with Lids for High-Temperature Cell Culture and Acid Evaporation

Chemically inert labware capable of withstanding concentrated boiling hydrofluoric/nitric mixtures and extreme heat sterilization up to 1000°C without devitrifaction.

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1. Deep UV Quartz Glass Industry Overview in the Kópavogur Market

As Iceland’s second-largest municipality and a vital technological center within the Capital Region (Höfuðborgarsvæðið), Kópavogur has transformed into a high-value industrial hub. Driven by modern biotech research parks, geothermal energy technological development, pharmaceutical synthesis, and advanced marine biotechnology, the demand for premium Deep Ultraviolet (DUV) Fused Quartz Glass and high-purity silica products has reached an unprecedented scale.

Unlike standard borosilicate or soda-lime glass, UV quartz glass (fused silica) synthesized from silicon dioxide ($\text{SiO}_2 \ge 99.99\%$) provides critical optical properties: deep ultraviolet spectral transmission down to 185nm, an exceptionally low coefficient of thermal expansion ($5.5 \times 10^{-7} /\text{°C}$), and extraordinary resistance to severe thermal shocks up to 1450°C. For industrial engineers and laboratory procurement directors operating across Kópavogur’s commercial corridors—such as Smárinn, Hamraborg, and the Lindir technological zone—securing a reliable supply chain of OEM-customized, high-purity quartz glass is paramount to operational uptime and precision performance.

"Information Gain Metric: Standard borosilicate glass solarizes and loses structural integrity above 500°C, blocking crucial UV-C radiation. Synthetic optical quartz supplied to Kópavogur industrial facilities maintains over 90% internal transmittance at 254nm while enduring continuous operating temperatures of 1100°C."

99.99%

Minimum SiO₂ Purity Grade

1450°C

Short-Term Thermal Threshold

>90%

Transmittance at 254nm UV-C

Ra < 0.5nm

Substrate Surface Roughness

2. Localized Industrial Application Scenarios in Kópavogur & Greater Reykjavík

Industrial purchasing managers in Kópavogur require fused quartz components tailored specifically to the unique geological and technical environmental landscape of Iceland:

Geothermal & Energy Research

High-pressure, temperature-resistant quartz sight glass windows and process tubes are extensively deployed in superheated steam monitoring, geothermal gas sampling, and hydrogen extraction research facilities near Kópavogur.

Aquaculture & Marine UV Sterilization

Iceland’s world-leading land-based aquaculture and seafood processing export industry relies heavily on high-transmittance clear quartz protection sleeves housed inside high-output UV-C water disinfection reactors.

Biotech & Analytical Spectroscopy

Life science labs in Kópavogur rely on optical quartz cuvettes, QCM sensor wafers, and zero-autofluorescence microscope slides for microfluidic assays, cell cultures, and high-precision spectrophotometry.

3. Technical Material Comparison: Fused Quartz vs. Fused Silica vs. Borosilicate

Choosing the right optical substrate is crucial for reducing solarization degradation and premature thermal stress failure in demanding local installations.

Material Metric / Parameter	Natural Fused Quartz (J2)	Synthetic Fused Silica (J1)	Borosilicate Glass 3.3
Purity ($\text{SiO}_2$)	≥ 99.99%	≥ 99.9999%	~ 81%
254nm UV Transmission	85% - 90%	> 92%	< 10% (Opaque in UV-C)
185nm VUV Cut-off Wavelength	Limited	Optimal Transmission	Completely Blocked
Max Continuous Temperature	1100°C	1200°C	500°C
Thermal Expansion (20-300°C)	$5.5 \times 10^{-7} /\text{°C}$	$5.2 \times 10^{-7} /\text{°C}$	$3.3 \times 10^{-6} /\text{°C}$
Acid Corrosion Resistance	Exceptional (Except HF)	Exceptional (Except HF)	Moderate

4. Key Market Trends & Procurement Shifts in Kópavogur

The industrial ecosystem of Kópavogur is experiencing a swift modernization phase driven by three strategic shifts:

Transition to High-Efficiency UV-C LED Disinfection: Municipal water purification projects and clean energy laboratories are transitioning to specialized deep-UV synthetic quartz windows optimized for targeted 265nm and 275nm LED arrays.
Demand for OEM Custom Milling & Micro-Machining: Standard off-the-shelf laboratory glassware is increasingly being replaced by precision CNC-machined quartz slabs with tight tolerances (±0.01mm) and fire-polished step edges for vacuum flange integration.
Focus on ISO 9001 Sourced Traceability: Procuring agents in Iceland require full batch certification, raw sand elemental purity analysis, and spectral transmittance logs to satisfy stringent Nordic regulatory frameworks.

5. Enterprise Edge: Donghai Kemzo Quartz Products Co., Ltd.

Located in Donghai, China—internationally recognized as the "Crystal Capital" due to its rich natural quartz deposits—Donghai Kemzo Quartz Products Co., Ltd. has established itself as an elite global manufacturer and direct exporter since 2011. Serving clients across 20+ provinces and exporting between 71% and 80% of total production globally, Kemzo Quartz combines raw material abundance with state-of-the-art quartz processing technologies.

Factory Capabilities & Operations

10+ Modern Production Lines: Dedicated lines for automatic quartz tube drawing, surface lapping, edge chamfering, and vacuum flame-polishing.
ISO 9001 Certified System: Recognized as a Jiangsu High Technology Enterprise, adhering strictly to global quality control metrics.
OEM/ODM Drawing Customization: Over 11 years of custom engineering experience turning complex CAD drawings into finished optical quartz components.

Global Logistics & Service Standards

Rapid Inquiry Response: Average response time within 1 hour for detailed technical feedback and cost breakdown.
Fragile Shipping Expertise: Export-grade shockproof wooden crates designed to ensure zero breakage upon arrival at Keflavík Airport or Reykjavík Port.
Flexible Incoterms & Currencies: Accepting FOB, CIF, DDU, EXW in USD, EUR, and other global currencies.

Frequently Asked Questions (FAQ) for Kópavogur Buyers

Clear, direct answers regarding customs, optical selection, material grades, and delivery terms.

Q1: What is the lead time for shipping custom-sized quartz furnace tubes to Kópavogur, Iceland?

For standard stock quartz tubes, order dispatch occurs within 3–5 business days. Custom OEM orders requiring CNC cutting, chamfering, or optical polishing typically take 10–15 production days. Air freight delivery directly to Keflavík (KEF) Airport takes approximately 5–8 transit days, while ocean freight to Reykjavík Port requires approximately 20–25 days.

Q2: How do I determine whether my Kópavogur lab needs synthetic fused silica or natural fused quartz?

If your application operates primarily in the UV-C spectrum (254nm) or under high-temperature heating conditions (up to 1100°C), natural fused quartz (SiO₂ ≥ 99.99%) provides outstanding cost efficiency and performance. If your project involves deep ultraviolet spectroscopy below 220nm (such as 185nm VUV lines) or requires ultra-low hydroxyl content (<5 ppm), synthetic fused silica is recommended to eliminate solarization risk.

Q3: What methods do you use to protect fragile quartz plates during transatlantic shipping?

Every individual quartz plate or tube is sealed inside anti-static dust-free packaging, enveloped in multi-layer shock-absorbing EVA foam, and packed in reinforced export-grade wooden crates with corner guards. Our breakage rate for air and ocean shipments to Nordic regions remains well below 0.1%.

Q4: Can Kemzo supply custom glass-to-metal adapters or ground-joint quartz fittings?

Yes. We provide full customization services, including standard taper ground joints (e.g., ST 14/23, 24/40, 29/32), spherical joints, vacuum flanges, and quartz-to-borosilicate graded seals manufactured according to your exact engineering dimensions.

Q5: What payment terms and documentation are provided for Iceland corporate tax and customs clearing?

We support T/T, L/C, and PayPal in USD and EUR. Every shipment is accompanied by a Commercial Invoice, Packing List, Certificate of Analysis (COA), ISO 9001 Compliance Certificate, and Bill of Lading (or Air Waybill) to ensure seamless customs clearance in Iceland.

Ready to Upgrade Your Quartz Glass Procurement in Kópavogur?

Send us your technical CAD drawings, dimensions, or target product specifications. Receive an expert engineering evaluation, material recommendation, and factory-direct quote within 1 hour.

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