UV Absorber UV-531

Domestic ultraviolet absorber UV531

Custom formulation 24h response MOQ negotiable Sample available
Reference price
58.00/ kg

Volume pricing available · Quotation within 24 hours

MOQ25kg
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At a glance
Model
531
Appearance
Pale yellow crystalline powder
Melt temperature
47-49℃
Density (25℃)
1.16-1.60g/cm³
  • Direct manufacturer
  • Stable batch quality
  • Reply within 24 hours
WHY IT WORKS

Why this product works

Performance and processing benefits distilled from the product datasheet.

The domestically produced yellow-white injection-molded ultraviolet absorber UV531 is a light yellow crystalline powder, with a melting point of 47-49°C, density of 1.16-1.60 g/cm³ (25°C), insoluble in water but easily soluble in organic solvents such as aceto…

Uses internationally leading technology, custom manufactured by a large domestic chemical company

High ultraviolet absorption efficiency, can effectively block harmful UV rays from 270-340nm

Excellent thermal stability, performance does not degrade during high-temperature processing

APPLICATIONS

Typical applications

Suitable processes and end-use scenarios.

The domestically produced yellow-white injection-molded ultraviolet absorber UV531 is a light yellow crystalline powder, with a melting point of 47-49°C, density of 1.16-1.60 g/cm³ (25°C), insoluble in water but easily soluble in organic solvents such as acetone and benzene; it has a light transmittance of up to 90%-95% (450-500 nm). It is widely used and can be added at 0.1%-1% to plastics such as polyethylene, polypropylene, PVC, and coatings, effectively absorbing ultraviolet light of 270-340 nm; it is also used in automotive paints, rubber, polypropylene fibers, and other fields. Some countries allow its use in food contact materials (such as polyethylene products with an addition of ≤0.5%). Uses internationally leading technology, custom manufactured by a large domestic chemical company High ultraviolet absorption efficiency, can effectively block harmful UV rays from 270-340nm Excellent thermal stability, performance does not degrade during high-temperature processing Does not affect the transparency of the substrate, maintaining the original appearance of the product Good compatibility with plastics such as PE and PP, no precipitation observed Complies with environmental protection standards, passed ROHS/REACH testing Polyethylene agricultural film: Prevents aging and brittleness caused by ultraviolet rays
SPECIFICATIONS

Specifications

Key parameters from the product datasheet. Final performance is confirmed by sample testing.

Datasheet parameters 531
Model
531
Appearance
Pale yellow crystalline powder
Melt temperature
47-49℃
Density (25℃)
1.16-1.60g/cm³
Transmittance
90%-95% (450-500nm)
Recommended additions
0.1%-1%
PP automotive parts
protection for outdoor components such as dashboards and bumpers
PVC door and window profiles
Extend the service life of outdoor building materials
Engineering plastics
PA, PC, and other areas with high weather resistance requirements
Food packaging materials
Compliant with food contact safety standards (limited use scope)
Polypropylene fiber
Enhances the UV resistance of textiles
Standard Packaging
25kg/composite bag, 25kg/carton, 1.35 t/pallet
PRODUCT STORY

Product details

The domestically produced yellow-white injection-molded ultraviolet absorber UV531 is a light yellow crystalline powder, with a melting point of 47-49°C, density of 1.16-1.60 g/cm³ (25°C), insoluble in water but easily soluble in organic solvents such as acetone and benzene; it has a light transmittance of up to 90%-95% (450-500 nm). It is widely used and can be added at 0.1%-1% to plastics such as polyethylene, polypropylene, PVC, and coatings, effectively absorbing ultraviolet light of 270-340 nm; it is also used in automotive paints, rubber, polypropylene fibers, and other fields. Some countries allow its use in food contact materials (such as polyethylene products with an addition of ≤0.5%).

Product Basics

Appearance
Pale yellow crystalline powder
Melt temperature
47-49℃
Density (25℃)
1.16-1.60g/cm³
Transmittance
90%-95% (450-500nm)
Recommended additions
0.1%-1%

Product Features and Benefits

  • Uses internationally leading technology, custom manufactured by a large domestic chemical company
  • High ultraviolet absorption efficiency, can effectively block harmful UV rays from 270-340nm
  • Excellent thermal stability, performance does not degrade during high-temperature processing
  • Does not affect the transparency of the substrate, maintaining the original appearance of the product
  • Good compatibility with plastics such as PE and PP, no precipitation observed
  • Complies with environmental protection standards, passed ROHS/REACH testing

TYPICAL APPLICATION FIELDS

  • PP automotive parts: protection for outdoor components such as dashboards and bumpers
  • PVC door and window profiles: Extend the service life of outdoor building materials
  • Engineering plastics: PA, PC, and other areas with high weather resistance requirements
  • Food packaging materials: Compliant with food contact safety standards (limited use scope)
  • Polypropylene fiber: Enhances the UV resistance of textiles
  • Industrial protective coatings: protective paint film for metal/wood surfaces

Packaging & Logistics Instructions

  • Standard Packaging: 25kg/composite bag, 25kg/carton, 1.35 t/pallet
  • Professional Protection: Full Coverage for Pallets with Stretch Film
  • Delivery Time: Next-day delivery in the Pearl River Delta, 2-day delivery in Jiangsu, Zhejiang, and Shanghai, 3-4 days to remote areas
  • Transportation methods: supports express delivery/full truckload/less-than-truckload, agency services for nationwide logistics

Note: Please communicate with the sales staff to confirm the specific packaging and arrival time.

Dongguan Qihao Plastic Co., Ltd. | Professional Plastic Additives Supplier

Focused on the research and production of plastic additives for 20 years, providing professional application solutions

REQUEST A QUOTE

Request pricing and samples for 531

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    Prefer to talk? Call 0769-83868566 or email de.qiang@qihaoplas.com · See full contact details

    Reference price ¥58.00 Request quote
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