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Quick Details

Model Number: PU825
Brand Name: SEPNA
Usage: Construction,Woodworking,
Main Raw Material: Polyurethane
Classification: Other Adhesives
Place of Origin: China (Mainland)

Specifications

PU825 is one component polyurethane construction mould proof sealant of low modulus special for kitchen and bathroom.

Key Features

1. Mould proof, best mould resistance
2. Low modulus and high elasticity, good sealing and water-proof property
3. One-component, moisture cured, convenience of application
4. Bonding well with many substrates, no corrosion and pollution to substrate
5. Nonpoisonous and odor after curing, environment-friendly
6. Good compatibility between new and used adhesive, convenient to repair
7. Excellent aging, pricking, dirt, water and oil resistance

 

Typical Applications
1. Widely used in Bonding and sealing of high grade kitchen ware, sanitary ware, shower room, tub, tile, concrete, wood, stone etc.
2. Use for wood panel in home ceiling installation
3. For home decorating structure sealing, waterproof sealing of the ground structure
4. For Inter-sealing and bonding of house ceiling plasterboard
Technical Data Table

PROPERTY STANDARD/UNITS VALUE
Main raw material ----- Polyurethane
Color/state Visual inspection White/ transparent, paste
Density Gr/cc 1.35±0.05
Volatile content % ≤5
Tack free time min ≤90
Curing speed mm/ 24hrs 3~5
Hardness Shore A 30~50
Tensile strength MPa ≥1.4
Elongation at break % ≥400
Elastic recovery rate % ≥85
Application temperature °C 5~35
Shelf life month 9

Typical Applications

Tool: Manual or pneumatic plunger caulking gun
Cleaning: Clean and dry all surfaces by removing foreign matter and contaminants such as oil dust, grease, frost, water, dirt, old sealants and any protective coating. 
For cartridge
1. Cut nozzle to give the required angle and bead size
2. Pierce the membrane at the top of the cartridge and screw on the nozzle
3. Place the cartridge in an applicator gun and squeeze the trigger with equal strength
For sausage
1. Clip the end of the sausage and place in barrel gun
2. Screw end cap and nozzle on to barrel gun
3. Using the trigger extrude the sealant with equal strength
Attention of operation
1. Choose this product, primer, activator and other matching product, must have bonding test before bonding the materials, to ensure that they have good compatibility. At the same time, before application, should guarantee that the sealant, primer and activator are in the warranty period.
2. Please strictly according to the application process, any violation of the application operation may cause bonding failure. This product is innocuous after curing completely, but before curing, please avoids contacting with eyes and skin. In case of eyes and skin contact, wash immediately and thoroughly with soap and water. If the situation is serious, please go to see a doctor immediately.