Strong UV-A/UV-B absorption
Absorbs 300–400 nm, protecting polymer and contents.
UV-P Benzotriazole UV Absorber Supplier
SUNSORB® P (UV-P) is a benzotriazole UV absorber that strongly absorbs UV light between 300 and 400 nm. It protects clear and light-colored PS, PVC, PMMA, polyester and other plastics against yellowing.
CAS 2440-22-4 · Benzotriazole · UV absorber
Product Overview
UV-P (2-(2H-benzotriazol-2-yl)-p-cresol) is a widely used benzotriazole UV absorber with low color. It is used in styrenics, PVC, acrylics, polyester, polycarbonate, coatings and adhesives. Its relatively low molecular weight (225.2) suits thicker parts more than thin films processed at high temperature.
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
Key Benefits
Low color
Suits clear and light-colored products.
Broad compatibility
PS, PVC, PMMA, PET, PC, coatings and adhesives.
Technical Specifications
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
| Parameter | Typical value |
|---|---|
| Product Name | UV Absorber UV-P |
| Brand | SUNSORB® P |
| CAS No. | 2440-22-4 |
| Chemical Name | 2-(2H-Benzotriazol-2-yl)-p-cresol |
| Molecular Formula | C13H11N3O |
| Molecular Weight | 225.2 |
| Appearance | White to light-yellow crystalline powder |
| Melting Point | 128–132 °C |
| Assay | ≥99% |
| Volatile Matter | ≤0.5% |
| Ash | ≤0.1% |
Applications by Material
Pick an application to see how UV-P is normally used and what to confirm before your trial.
PS, PMMA & Clear Plastics
Protects clear styrenics and acrylics against yellowing; typically 0.1–0.5%.
What to confirm for your application
- Part thickness
- Indoor or outdoor exposure
- Clarity requirement
PVC
Used in rigid and flexible PVC.
What to confirm for your application
- Compound type
- Exposure
- Existing stabilizers
Polyester, Coatings & Adhesives
UV protection in polyester, coatings and adhesives.
What to confirm for your application
- System type
- Processing temperature
- Exposure
Packaging & Storage
Packaging
25 kg net bags or cartons with a PE inner liner. Palletized; private-label packing on request.
Storage
Keep sealed in a cool, dry, ventilated place away from heat and direct sun. See the SDS for full handling details.
Lead time & terms
Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.
Technical & Buying Information
UV Absorber UV-P Buyer Guide
Define the exposure
Indoor light behind glass, outdoor temperate climate and desert or tropical exposure need very different packages. Note the target service life and the weathering test you use (xenon or QUV, hours, ΔE or gloss retention).
Match absorber to process and thickness
A UV absorber works by filtering, so it needs enough path length: thick parts need less, thin films and fibers need more and need a low-volatility grade. Check the absorber survives your processing temperature.
Combine with a HALS
For outdoor use the standard approach is UV absorber plus HALS. Send your current package and pigment system and we suggest a starting combination for the trial.
Check regulations before you buy
Some benzotriazoles are restricted in the EU and other markets. Tell us the destination and end use, and we confirm the REACH and food-contact position of the grade before you order.
Request a Quotation for UV Absorber UV-P
Start with your material, part thickness, quantity and destination. Add your current UV package and we will quote against it.
| Information | Example |
|---|---|
| Polymer / Material | PP, PE, ABS, compound, masterbatch |
| Application | Injection molding, extrusion, film, fiber |
| Current additive | Grade or supplier you use today |
| Required specification | Your TDS, COA or key limits |
| Quantity | Trial order / monthly / annual volume |
| Packaging | Standard 25 kg or specific requirement |
| Destination | Country and port |
| Documents needed | COA, SDS, REACH, food-contact statement |
Related UV Absorbers & Stabilizers
SUNSORB® 531
Benzophenone UV absorber for polyolefins and PVC, cost-effective and widely used.
View product →UV Absorber UV-P FAQ
Is UV-P suitable for thin films?
Its low molecular weight makes it volatile at high processing temperatures. For thin films and fibers, higher-MW grades such as 234 or 360 are usually better.
What dosage is typical?
0.1–0.5% depending on thickness and exposure, often with a HALS for outdoor use.
Does UV-P color the product?
It has low inherent color and is used in clear products.
Can I get a sample before ordering?
Yes. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
What if a COA does not match our agreed specification?
Send us the agreed specification and the COA showing the difference (parameter, unit and test method). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.
Discuss Your UV Absorber UV-P Requirements
Send your application, specification and quantity to request a quotation or supporting documents.