Address：No. 303 West Transit Road, Boshan District, Zibo City, Shandong Province, China

PU 252 Structural Bonding Polyurethane Construction Strong Adhesive Sealant for Aluminum Steel Ceramic Industry Chemical Sealer

Basic Information
Place of Origin: Shandong, China
Brand Name: Useal
Model Number: PU 252
Main Raw Material: Polyurethane
Usage: PU construction structural adhesive sealant

MOQ: No minimum order quantity

Price: Negotiable

Delivery Time: 20-25 days

Payment: TT, L/C

Supply Ability: 1000000 pcs/ month

Classification：

PU Construction Sealant

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Description

OEM ODM Construction Polyurethane Sealant PU Sealant Adhesive for Wood Metals Aluminum Ceramic Plastics Base Material

Useal PU 252 can still maintain a certain degree of flexibility after curing, can adapt to the small deformation of the bonding surface, and will not cause cracking or failure due to the thermal expansion and cold contraction of the material. This characteristic makes it particularly suitable for applications where dynamic stresses ‌are required.

Main Specification

Chemical basis	Polyurethane
Curing mechanism	Moisture curable
Tack free time (ISO 37)	40Min
Density (GB/T 13477)	1.2g/ml
Shore A hardness（GB/T531）	55
Elongation tensile stress (ISO 37)	4Mpa
Elongation at break (ISO 37)	300%
Tear strength (ISO 34)	9N/mm
Shear strength (ISO 4587)	2.5MPa
Resistivity (ASTM D 257-99)	5ⅹ10⁹ Wcm
Shrinkage ratio	6%
Temperature tolerance	-40 ℃ ~+ 90 ℃
Application temperature	+ 5 ℃ ~ + 35 ℃
Color	White, black
Package	310 ml, cans； 400ml/600ml, film; 23/180L, barrel.
Shelf life	12months

Product Advantages

1. One-component;

2. Elastic;

3. The surface can be painted;

4. Excellent joint filling performance;

5. Bearing high strength dynamic load;

6. Non-corrosive;

7. Nonrattling;

8. Non-conducting;

9. Fine consistency with most of base material.

Applications

PU 252 is suitable for structural adhesion of parts subjected to dynamic loading. The applicable materials include wood, metals, especially aluminum (including anodized parts), steel plates (including phosphatized, chromium-plated and galvanized parts), metallic primers and painted surface (two-component), ceramic materials and plastics.

Storage and shelf life

1. Store in the original unopened package in a dry and shady place below 23°C;

2. 12 months from manufacturing date.

Packing

1. 300/ 310ml aluminium cartridge, customized;
2. 400/ 600ml sausage, customized;
3. 15/ 20/ 200L barrel.

Enterprise Strength

We're specialized in the production, research and development of various sealant adhesives such as polyurethane sealant, silicone sealant, PU foam, acrylic sealant, MS sealant, butyl sealant, hot melt adhesive and PVC sealant etc.. Our products have a wide range of applications, mainly used in building construction, automobile windshield industry, marine, rail transportation, containers, related machinery equipment, solar power new energy and other fields.

Qualification Certificate

1. We're the only original factory in China owning Sika formula for PU sealants. We also have multinational products equivalent to Bostik, Wacker.

2. Our company has passed the ISO 9001:2015 Quality Management System Certification, ISO 14001:2015 Environmental Management System Certification and IATF 16949:2016 Certification.

3. Our products have obtained REACH certificate and Intertek test.

Customer Feedback

Products are exported to all over the world, and trusted by customers. With the increase of import and export business, we established a subsidiary company Shandong Yunrun New Material Technology Co., Ltd in 2024. specializing in overseas import and export business.

Packaging & Shipping

Our company has advanced experimental and testing rooms; independent research and development and testing capabilities; two automated production lines and key production equipment imported from Italy to ensure stable product quality. With strong technical supports, we both have world class products comparable to Sika, Henkel and Bostik, also cost-effective products suitable for the public. Our production is flexible and fast, which can not only meet large orders, but also accept small quantities and special customized small batch orders.