PU821 is one component polyurethane construction for construction joints concrete urethane rubber

FOB Price: US $1.97 - 3.49 / Piece Get Latest Price
Min.Order Quantity: 500 Piece/Pieces
Supply Ability: 1,000.000 Ton/Tons per Year
Port: Shanghai,Qiangdao,Ningbo,Any port in China
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,Paypal,Ebay,Escrow ,any ohter online payment
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Quick Details

CAS No.: 25322-69-4 Other Names: pu adhesive sealant MF: C9H6N2O2
EINECS No.: 210-898-8 Place of Origin: Shanghai China (Mainland) Classification: Other Adhesives
Main Raw Material: Polyurethane Usage:
Construction,Fiber & Garment,Footwear & Leather,Packing,Transportation,Woodworking,glass, metal, vehicle, electrical
Brand Name: PUNADE
Model Number: PU821 Aptitude:
Unique Chinese Manufacturer of Construction concrete sealant
Price: 1.65 --1.95$/310ml
MOQ: 500pcs Client: GM,VW,BMW, Volvo, Fuyao Temperature: -40-80 ℃
Packing: 310ml cartridge,400/600ml sausage Valid time: 15-20years Sample: Free sample
L/C,T/T,Western Union,Paypal,Escrow,Any payment online
ISO9001,SGS,MSDS, Environmental reports ,Test Report etc.

Packaging & Delivery

Packaging Detail: 1. 310ml Cartridge, 20pcs per caton 1080pcs per cbm 33000pcs per 20ft container, 1080pcs per cbm 2. 600ml Sausage, 20pcs per carton 1cbm can take 800pcs 20ft container can take 20000pcs 600ml per sausae
Delivery Detail: Samples:3 days Standard order:7-10days Other:depend on quantity


1.Senior Member International Chamber of Commerce,R&D Manufacturer concrete sealant
5.Lowest price 1.9

 Unique Chinese Manufacturer of Construction PU Adhesive/Sealant, Senior Member of Shanghai International Chamber of Commerce.

concrete sealant


Model Number

PU 821

Main Raw Material








Volatile content




Touch dry time


Elastic recovery


Pollution properties


Elongation at break


Application temperature


































Single component polyurethane construction sealant PU821 


Detailed Product Description


PU821 is one component polyurethane construction sealant of low modulus






1.Low modulus and high elasticity, good sealing and water-proof property


2.One component, convenient to construct, nonpoisonous and tasteless after curing, green and environmental


3.Bonding well with many substrates, no corrosion and pollution to substrate


4.Good compatibility between new and used adhesive, convenient to repair


5.Excellent aging, water and oil resistance, mouldiness






1.Sealing of expansion and settlement joint of construction


2.Sealing of upstream face crack of drainage pipeline


3.Sealing of through holes on wall and at floor concrete


4.Sealing of joints of prefab, side fascia, stone and color steel plate



Package and Storage

Package                                                    Storage

310ml cartridge, 20pcs/carton                  Keep in cool and ventilative place

400ml/600ml sausage, 20pcs/carton      Temperature≤25°C, humidity≤50%RH

Color:Black                                                 Shelf life: 9 months


Our sales team





Thanks for your visit our website , we are manufacture Polyurethane, Epoxy, Silicone adhesive sealant and grease for automibile ,construction,electronic,ect. We have the owen factory, Technical team and After service team. We have supplier for many Top 500 company and also OEM for many big brand. 


We will provide the professional solution for you.  

 Out standing customer care services at any time,24 Hour Help Support on line or call +86-400-882-1323






 Display room



If you have any problem please feel free to contact me.

Skype: cherry_gaoqinsepuna
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Shanghai Sepuna Chemical Co.,Ltd is a subcompany of PUNADE INTERNATIONAL GROUP, Sepuna is a professional industry adhesive supplier ,manufacturing polyurethane/silicon/epoxy sealant and adhesive,has nearly 10 years history.
In 2005 Sepuna introduced PUNADE technology from Switzerland.
Via the ISO90001:2000 certification.
In 2013 Sepuna introduce Drawing Machine technology and has put it into producing formally now.

Sepuna has professional factory which area is 5.000 squaremeters,and has ... View detail

Basic Information

Product/Service (We Sell): Polyurethane Adhesive,Polyurethane Sealant,Epoxy Adhesive,Silicone Adhesive  
Brands: PUNADE  
Number of Employees: 101 - 200 People  

Trade & Market

Main Markets: Central America
South Asia
Northern Europe
Domestic Market
Eastern Asia
Southern Europe
Southeast Asia
Mid East
Western Europe
Eastern Europe
South America
North America
Total Annual Sales Volume: US$50 Million - US$100 Million  
Export Percentage: 81% - 90%  

Factory Information

Factory Size (Sq.meters): 3,000-5,000 square meters  
Factory Location: Shanghai Minhang District  
Number of Production Lines: 10  
Number of R&D Staff: 11 - 20 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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China (Mainland) | Manufacturer, Trading Company | Contact Details
Experience: Established 2010

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Ms. Cherry Gao
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