PROPERTY	STANDARD/UNITS	VALUE
Main raw material	-----	Polyurethane
Appearance	Visual inspection	Gray, Homogeneous paste
Density	Gr/cc	1.35±0.1
Flow ability	mm	Self-leveling
Solid content	%	≥99
Skin dry time	hour	≤3
Tack free time	hour	6~16
Fully cured time	hour	≤24
Elastic recover rate	%	≥90
Elongation at break	%	≥800
Application temperature	°C	5~35
Service temperature	°C	-40~80
Shelf life	month	6

#Product Description
PU820 is one component polyurethane high elastic self-leveling sealant for construction.

#Key Features
1. One component, very easy for application, free solvent, non-toxic odorless after curing, environment-friendly
2. Self-leveling, excellent flowability, easy to scratch sewing operation
3. Durable flexibility, no crack, excellent sealing and waterproofing
4. High displacement, no crack, fall off, suitable for sealing kinds of concrete road
5. The new and used sealant has good compatibility, easy to repair
6. Excellent water resistant, oil resistant, acid and alkali resistant, resistance to puncture

#Typical Applications
1. Suitable for sealing and filling of expansion joints and settlement joints of airport runway, highway, building roof and basement
2. Crack repairing of highway, plaza, roof, bridge and epoxy floor etc.
3. Repair all kinds of concrete road surface

#Packing and Storage
20kg/ metal bucket, 230kg/drum

When stored at 5~25°C, humidity≤50%RH in the original unopened containers, this product has a usable life of 6 months from the date of production. Do not store at temp. over 25°C, humidity over 80%RH.
Transportation: moisture proof, prevent the rain, prevent sunscreen, anti-high temperature, away from heat, handle with care, crush or collision is prohibited.

Shanghai Sepna Chemical is one of the leading manufacturer of sealant and adhesive in China over a decade since established in 2003. We supply adhesives and sealant in automotive, construction and electronic industry. Including polyurethane adhesive for auto glass, construction polyurethane filling adheisive, and silicone, epoxy adhesive in application for electronic components ect..
WE ARE LOOKING FOR ADHESIVE DISTRIBUTORS AROUND THE WORLD WITH THE BEST SUPPORT. IF YOU ARE INTERESTED, PLEASE CONTACT US, THANK YOU.