Flexibond 8205: 2-Component PU (Polyurethane) Adhesive for Honeycomb and Sandwich Panel

• Customization: Available
• Bonding Function: Structural Adhesive
• Morphology: Solvent Free
• Model NO.: Flexibond 8205
• Material: Polyurethane
• Classification: Room Curing and Thermosetting
• Characteristic: High Adhesion Strength
• The Color After Mixing: Light Yellow
• V Iscosity (After Mixing): 4000-6000MPa.S (Brookfield – Rvt 6/20)
• Mixing Ratio (by Weight): 5:1
• Pot Life (23ºC): 40-60mins
• Open Time (23ºC, 50%Rh): 65-80 Mins
• Hardness Shore D: Approx 65
• Shear Strength: ≥ 10MPa (Aluminum Alloy)
• Shelf Life (Resin): 12 Months
• Shelf Life (Hardener): 6 Months
• Curing Mechanism: Poly Addition
• Transport Package: 25kg+5kg Pail, 1250kg+250kg/Drum
• Specification: ISO9001, ISO14001
• Trademark: Flexibond
• Origin: China
• HS Code: 3506100090
• Production Capacity: 30000tons/Year

Product Description

Description
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

Technical Data

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

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:  butanone.

Packaging
Resin: 25.0kg/drum
Hardener: 5.0kg/drum
The packaging can be adjusted according to customer's requirement.


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