Formula details
Product Details
Overview
Are your outdoor polymer products yellowing, cracking, or losing structural strength under constant sun exposure? Unprotected plastics, coatings, and rubbers degrade fast when exposed to harsh ultraviolet light.
At Greenlano, we solve this with high-performance UV Absorbers engineered to extend the lifespan of your materials. Our flagship product, UV Absorber 329 (GreenGuard Grade), provides exceptional photodegradation protection for demanding global industrial applications.
Why Source UV Absorber 329 from Greenlano?
We combine premium chemical quality with a streamlined, direct-from-factory supply chain to support your compounding and manufacturing needs:
- Direct Factory Pricing: Cut out broker markups and secure competitive, direct-from-source wholesale rates.
- ≥ 99.0% Purity Guarantee: Every batch of UV Absorber 329 meets strict high-purity standards for consistent clarity and performance in thermoplastics and coatings.
- 24-Hour Rapid RFQ Turnaround: Send us your technical requirements and receive a detailed quote within one business day.
Protect your brand reputation and product durability with high-purity UV Absorbers delivered straight from our manufacturing line.
Technical Specifications & Material Data
We provide high-purity UV Absorbers engineered specifically to meet the demanding requirements of polymer compounding and industrial coatings. R&D engineers can review the core material parameters and technical data for our GreenGuard Grade UV Absorber 329 below.
Technical Specifications
| Parameter | Specification / Details |
|---|---|
| Chemical Name | 2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol |
| CAS Number | CAS 3147-75-9 |
| Standard Purity | ≥ 99.0% (via HPLC) |
| Appearance | White to slightly yellowish powder |
| Melting Point | 103.0°C – 107.0°C |
| Volatiles | ≤ 0.5% |
| Ash Content | ≤ 0.1% |
| Available Grades | GreenGuard Powder, Standard Granular, Micro-milled |
Target Light Absorption Spectrum
Our Benzotriazole UV Absorbers shield sensitive substrates by filtering destructive UV rays before they trigger plastic degradation.
- Target Spectrum: Strong absorption across the 290–400 nm range.
- Peak Absorbance: Maximum spectral protection at 300 nm and 340 nm.
- Performance: High extinction coefficient with minimal visible light absorption, ensuring strong yellowing resistance without compromising final clarity in clear plastics, sheets, or topcoats.
How Greenlano UV Absorbers Prevent Degradation
Our UV absorbers rely on advanced benzotriazole structures to protect your polymers before damage can start. Think of them as a chemical shield that intercepts destructive ultraviolet light before it can break the molecular bonds of your plastics.
Once our benzotriazole structures capture this harmful UV radiation, they instantly convert the destructive photochemical energy into low-grade, harmless thermal energy (heat). This heat safely dissipates throughout the polymer matrix without changing the physical properties or color of your substrate. Because this reaction is completely reversible, our additives provide continuous, long-term plastic degradation prevention.
Synergistic Formulation: UV Absorbers vs. HALS
To get the absolute best weatherability and yellowing resistance, you need to understand how different polymer additives operate. Combining our benzotriazole UV absorbers with Hindered Amine Light Stabilizers (HALS) creates a powerful synergistic effect.
| Additive Type | Primary Protection Mechanism | Where It Protects | Best Used For |
|---|---|---|---|
| Greenlano UV Absorbers | Absorbs UV light and converts it into harmless heat | Deep within the polymer substrate | Preventing deep structural degradation, color changes, and initial breakdown |
| Hindered Amine Light Stabilizers (HALS) | Scavenges free radicals formed during oxidation | Mainly on the polymer surface | Stopping surface cracking, gloss loss, and chalking after exposure begins |
For maximum outdoor durability, we recommend combining both technologies in your thermoplastic compounding process. Our team can help you balance these ratios to ensure complete surface-to-core protection.
Primary Industrial Applications of UV Absorbers
We engineered our UV absorbers to protect diverse substrates from severe outdoor weathering. Whether you are running high-speed extrusion lines or compounding rugged outdoor components, our additives ensure your materials maintain their structural integrity and visual appeal.
Thermoplastic Compounding & Sheet Extrusion
Our polymer additives integrate seamlessly into high-volume manufacturing setups. They prevent plastic degradation during processing and long-term field exposure, keeping your mechanical properties intact.
- Polypropylene (PP) & Polyethylene (PE): Preserves tensile strength and prevents surface chalking in outdoor furniture, agricultural films, and automotive trim.
- PVC & Polycarbonate Sheet Extrusion: Maintains critical impact resistance and clarity while halting micro-cracking caused by prolonged solar exposure.
Elastomers & Rubber Compounding
Extreme outdoor environments rapidly degrade unprotected rubber, leading to premature cracking and failure. Our benzotriazole UV absorbers safeguard flexible matrices by maintaining cross-link stability under constant solar stress.
- Flex Resistance: Prevents surface embrittlement in seals, gaskets, and hoses.
- Structural Flexibility: Extends the service life of industrial belts and outdoor molded rubber parts.
Industrial Paints, Coatings & Adhesives
For high-end finishes, our products act as a powerful photodegradation inhibitor, protecting both the binder matrix and the underlying substrate from solar radiation.
- Automotive & Marine Topcoats: Prevents gloss loss and blistering under intense UV and salt-spray conditions.
- Industrial Adhesives: Halts early yellowing and delamination in clear structural bonds and exterior sealants.
Quality Control & Certified UV Absorbers
We know that material consistency can make or break your production line. That is why our manufacturing facilities operate under strict ISO 9001:2015 standards, ensuring every batch of our polymer additives meets rigid global criteria. We run a tight ship so your formulation remains flawless.
Total Batch Traceability & Third-Party Audits
We run 100% batch-verified in-house lab analysis on all shipments. This guarantees that your UV Light Stabilizers arrive with full traceability from raw material to finished product. If your quality team requires independent validation, we maintain full readiness for external audits by trusted global agencies.
- 100% Batch Verification: Every order includes a comprehensive Certificate of Analysis (COA).
- Audit-Ready Infrastructure: Seamless compliance inspection support for SGS, Bureau Veritas (BV), and Intertek.
- In-House Lab Testing: Strict monitoring of purity, volatile content, and transmittance values.
Global Regulatory Compliance
Navigating international chemical regulations is complex, but we handle the heavy lifting for you. Our products comply with major global frameworks to ensure smooth customs clearance and safe industrial application.
| Compliance Framework | Status / Details |
|---|---|
| REACH Registration | Fully registered for safe import and distribution in the European market. |
| RoHS Compliance | Options available ensuring strict restriction of hazardous substances. |
| GHS Documentation | Fully compliant, up-to-date Technical Data Sheet (TDS) and Safety Data Sheet (SDS). |
By maintaining these strict quality control protocols, we protect your brand against plastic degradation prevention failures and outdoor weathering issues before they ever start.
Sourcing UV Absorbers: Packaging & Global B2B Logistics
Getting high-purity UV Absorbers to your production facility requires a supply chain built on speed, flexibility, and absolute reliability. At Greenlano, we manage your order from our production floor directly to your facility—eliminating middlemen and ensuring full traceability every step of the way.
Flexible Packaging Options
We provide commercial packaging tailored to your handling equipment, batch sizes, and storage conditions:
- 25kg Fiber Drums: Standard moisture-proof drums lined with double PE bags for easy handling and small-to-medium batch compounding.
- Heavy-Duty IBC Totes / Super Sacks: 500kg to 1,000kg bulk bags engineered for high-volume automated compounding lines.
- Custom Bulk Packaging: Tailored palletizing, private labeling, and custom bag weights available upon request.
Greenlano Supply Chain Metrics
We benchmark our logistics performance against strict global B2B standards to keep your production lines running without interruption:
| Metric | Greenlano Standard | Industry Benchmark |
|---|---|---|
| RFQ Response Time | < 24 Hours | 48–72 Hours |
| On-Time Delivery Rate | 98.5% | 88.0% |
| Sample Dispatch | Within 48 Hours | 5–7 Days |
| Batch COA Availability | Included with Invoice | Upon Request |
Custom Sourcing & Hazard Transportation
Navigating international chemical logistics requires full regulatory compliance and specialized handling:
- Contract Manufacturing & Custom Blending: We offer custom purity levels, particle sizing, and pre-blended additive packages to streamline your compounding process.
- Hazardous Cargo Management: Full UN-certified packaging, MSDS/SDS integration, and certified dangerous goods (DG) ocean and air freight handling.
- End-to-End Tracking: Direct factory supply with real-time shipment monitoring and complete customs documentation for seamless import clearance worldwide.
Bulk UV Absorbers B2B RFQ Portal
We make sourcing high-purity UV absorbers straightforward and efficient. As a direct factory supplier, we streamline your procurement process to ensure your production line never faces delays. Submit your specific requirements through our structured RFQ framework below for a guaranteed response within 24 hours.
Streamlined B2B Inquiry Specifications
| Procurement Parameter | Options & Standards |
|---|---|
| Product Grade | GreenGuard Grade (UV Absorber 329) |
| Minimum Purity | >= 99.0% Guarantee |
| Order Volume | MOQ 500 kg / Bulk Container Loads |
| Packaging Options | 25kg Fiber Drums / Heavy-Duty IBC Totes / Custom Bulk |
| Applicable Incoterms | FOB / CIF / CFR / EXW |
Key Information Required for Quotes
To receive an accurate, competitive factory-direct price quote, please prepare the following details for our commercial team:
Target Application: Specify your polymer matrix (e.g., PP, Polycarbonate, PVC) or coating system.
Annual Volume Forecast: Helps our facility allocate production capacity for your contract manufacturing needs.
Compliance Documentation: Indicate if you require batch-specific Certificates of Analysis (COA) or specialized REACH/RoHS compliance verification.
Frequently Asked Questions (FAQs)
What is the main difference between UV absorbers and HALS?
While both function as UV light stabilizers, they protect polymers through completely different chemical mechanisms:
- UV Absorbers: These molecules intercept harmful ultraviolet rays before they can damage the polymer matrix. They act like a chemical sunscreen, converting destructive radiation into harmless heat.
- Hindered Amine Light Stabilizers (HALS): These do not absorb light. Instead, they act as radical scavengers that trap the destructive free radicals formed during plastic degradation, halting the chain reaction of weathering.
| Feature | UV Absorbers (e.g., UV Absorber 329) | Hindered Amine Light Stabilizers (HALS) |
|---|---|---|
| Primary Role | Prevents initial UV light penetration | Scavenges free radicals after degradation starts |
| Best For | Protecting deep polymer layers & clear plastics | Protecting surfaces & maintaining tensile strength |
| Mechanism | Light absorption & thermal conversion | Ongoing chemical radical trapping |
How do I ensure batch consistency when placing a bulk order for UV stabilizers?
We eliminate sourcing risks through a strict quality control framework:
- Factory-Direct Verification: Every bulk shipment comes with a batch-specific Certificate of Analysis (COA) generated by our in-house laboratory.
- Purity Guarantees: We maintain a standard purity of $ge$ 99.0% using ISO 9001:2015 certified manufacturing protocols.
- Pre-Shipment Retention: We retain reference samples from every single batch for full traceability, allowing seamless re-ordering for your thermoplastic compounding runs.
Are Greenlano UV absorbers REACH and RoHS compliant?
Yes. We fully support the global regulatory needs of our B2B partners. Our Benzotriazole UV Absorbers meet strict environmental and safety standards:
- REACH Registered: Fully compliant for legal import and use across the European market.
- RoHS Compliant: Free from restricted hazardous substances, making them safe for electronic and electrical polymer additives.
- Complete Documentation: Every order includes fully updated, GHS-compliant Safety Data Sheets (SDS) and a Technical Data Sheet (TDS) for straightforward customs clearance and regulatory audits.
