Polyurethane Glue for Aluminum Composite Panel and Sandwich Stucture Bonding (Flexibond 8211)

• Bonding Function: Structural Adhesive
• Morphology: Solvent Free
• Application: Building Materials
• Material: Polyurethane
• Classification: Room Curing and Thermosetting
• Characteristic: High Adhesion Strength
• Model NO.: Flexibond 8211
• Color: White
• Curing Mechanism: Poly Addition
• The Color After Mixing: Light Yellow
• Density (Resin): 1.50±0.05 G/Cm^3
• Density (Hardener): 1.2±0.05 G/Cm^3
• V Iscosity (After Mixing): 5000-10000MPa.S
• Mixing Ratio (by Weight): 4:1
• Pot Life (23ºC): 50-70 Min
• Open Time (23ºC, 50%Rh): 60-80 Min
• Hardness Shore D: Approx 70
• Shear Strength: ≥12MPa (Aluminum Alloy)
• Transport Package: Resin: 24kg/Barrel Hardener: 6kg/Barrel
• Specification: ISO9001, ISO14001
• Trademark: Flexibond
• Origin: China
• HS Code: 3506100090
• Production Capacity: 30000tons/Year

Product Description

Description

Flexibond 8211/Flexibond 8200 is a two-component polyurethane adhesive which is applied for structural bonding for various substrates, such as aluminum honeycomb, wood, PU foam, polystyrene foam board, glass fiber-reinforced plastic, aluminum plate and steel plate, etc.

Characteristics
(1) Excellent adhesion to various substrates.
(2) Cures fast, shortens heat or cold setting time.
(3) Solvent free, environmental friendly.
(4) Good humidity and heat resistance.

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Technical Data of Flexibond 8211

	Flexibond 8211 (Resin)	Flexibond 8200 (Hardener)
Curing mechanism	Poly addition
Chemical base	Multiplehydroxyl compound	PAPI
Color	White	Brown
The coloraftermixing	Light yellow
Density (beforecuring)	1.50±0.05 g/cm^3	1.2±0.05 g/cm^3
Viscosity	15000-20000mpa.s	250mpa.s
Viscosity (aftermixing)	8000-12000mpa.s
Mixingratio (by weight)	4	1
Pot life (23 ºC)	30-50 min
Open time (23 ºC, 50%RH)	50-70 min
Hardness shore D  (GB/T 531-2008)	Approx 70
Shear strength (GB/T 7124-2008)	≥ 12 Mpa (Aluminum alloy)
Flat tensile strength (GB/T 1452-2005)	≥ 1.5 Mpa
Climbing drum peel strength (GB/T 1457-2005)	≥80Nmm/mm
Shelflife (unopened below 25 ºC)	12 months	6 months

Application
(1) Adhesive Coating:
The recommended dosage is 200-400G/M2. The dosage varies with the roughness of the substrate surface.

(2) Mixing Ratio
Flexibond 8211/Flexibond 8200=4: 1 (by weight)
The resin (8211) should be uniformly stirred before it is mixed with the hardener (8200). Mix the two components uniformly. Mix for 1-2 more minutes after the two components color is well mixed.

(3) Adhesive Coating Temperature:
The adhesion should be taken within its open time. The open time and curing speed will be affected if the temperature is too high or too low.

(4) Pressing:
Raise the pressing pressure as high as possible without affecting the material forming.

(5) Pressing time
The pressing time is 6-8 hours. The adhesive is fully cured in 7 days. The higher the temperature is, the faster the curing is. The pressing time can reach 30 mins under the temperature of 80.

(6) Clean
Recommended Cleaner: Acetone, butanone.

Packaging
Resin: 24kg/barrel
Hardener: 6kg/barrel
The packaging can be adjusted according to customer's requirement.

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