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Two Component PU Adhesive for Honeycomb and Sandwich Panel
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sku: Flexibond 8205
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Flexibond 8205

Two Component PU Adhesive for Honeycomb and Sandwich Panel

Decription
Flexibond 8205 is a two-component polyurethane adhesive is suitable for sandwich structural bonding, and for various other substrates, such as wood, prefabricated plastic, polyurethane sandwich panel, foam panel, polystyrene foam board, glass fiber, steel panel, concrete materials. The adhesive is of good adhesion and good weather resistance. It is solvent free, environmental friendly. 

Characteristics:
1. Excellent adhesion to various substrates. 
2. Cures fast, shortens the pressing time 
3. No irritant gas during applying and curing process. 
4. Good humidity and heat resistance 

Application 
1. Dosage 
It depends on the condition of the substrate surface. Generally, the consumption is 200-400G/M2.
 2. Mixing ratio 
Flexibond 8205A/Flexibond 8205B=5: 1 (by weight). Mix manually or mechanically strictly conform to the proportion and stir fast for 1-2 minutes till mix uniformly. 
3. Application Temperature 
Mix at the room temperature. If the temperature is too high or too low, the open time and curing rate will be affected. 
4. Compounding pressure 
Raise the compounding pressure as high as possible without affecting the material forming. 
5. Curing 
Apply the adhesive at the temperature of 25. The pressing machine can be taken off after the adhesive applied 5-6 hours. The adhesive cures completely within 7 days at the temperature of 25. The higher the temperature is, the faster it cures. It achieves 80% compound strength within 30 minutes at the temperature of 80. 
6. Working Condition 
Apply the adhesive at the temperature of 5-30, relative humidity <80. The curing rate will be affected if the temperature is too high. And it will cause bubble if the humidity it too high. 
7. Clean 
Recommended Cleaner: Acetone, butanone. 

Packaging 
Resin: 25.0kg/drum 
Hardener: 5.0kg/drum 
The packaging can be adjusted according to customer's requirement.
 
Technical data  
  Component A(Base) Component B(Hardener)
Curing mechanism Poly addition
Chemical base Multiplehydroxyl compound PAPI
Color White  Brown
The color after mixing Light yellow
Density (before curing) 1.62g/ cm3 1.2g/ cm3
V iscosity 7000-7500mpa. S 250mpa. S
V iscosity (after mixing) 4000-4500mpa. S
Mixing ratio (by weight) 100 20
Application time (25) 25-30mins
Open time (25) 50 mins  
Hardness shore D (GB/T 531-2008) Around 65
Tensile strength (GB/T 528-1998) ≥ 8MPa
Flatwise tensile strength (GB/T 1452-2005) ≥ 2Mpa
Shear strength (GB/T 7124-2008) ≥ 10Mpa (Aluminum alloy)
Shelf life (unopened below 25) 12 months 6 months
 
 
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