Light Yellow Solvent Free Polyurethane PU Adhesive for Bonding Sandwich Panels

China Light Yellow Solvent Free Polyurethane PU Adhesive for Bonding Sandwich Panels, Find details about China Adhesive Glue, PU Adhesive from Light Yellow Solvent Free Polyurethane PU Adhesive for Bonding Sandwich Panels

Basic Info.

Model NO.

Flexibond 8204/8200

Composition

Organic Material

Color

Light Yellow

Curing Mechanism

Poly Addition

V Iscosity (After Mixing)

6000-10000MPa.S (Brookfield–rvt 6/20)

Mixing Ratio (by Weight)

4:1

Pot Life (23ºC)

30-50mins

Open Time (23ºC, 50%Rh)

50-60mins

Hardness Shore D

Approx 60

Shear Strength

≥6MPa (Aluminum Alloy)

The Color After Mixing

Light Yellow

Shelf Life (Resin)

12 Months

Shelf Life (Hardener)

6 Months

Trademark

Flexibond

Transport Package

24kg+6kg/Barrel, 1000kg+250kg/Drum

Specification

ISO9001, ISO14001

Origin

China

HS Code

3506100090

Model NO.

Flexibond 8204/8200

Composition

Organic Material

Color

Light Yellow

Curing Mechanism

Poly Addition

V Iscosity (After Mixing)

6000-10000MPa.S (Brookfield–rvt 6/20)

Mixing Ratio (by Weight)

4:1

Pot Life (23ºC)

30-50mins

Open Time (23ºC, 50%Rh)

50-60mins

Hardness Shore D

Approx 60

Shear Strength

≥6MPa (Aluminum Alloy)

The Color After Mixing

Light Yellow

Shelf Life (Resin)

12 Months

Shelf Life (Hardener)

6 Months

Trademark

Flexibond

Transport Package

24kg+6kg/Barrel, 1000kg+250kg/Drum

Specification

ISO9001, ISO14001

Origin

China

HS Code

3506100090

Product Desciption

Description:
Flexibond 8204 is a two-component polyurethane adhesive which is widely applied to manufacture heat-insulation and decoration integrated plate, ceiling board and metal partition of clean rooms.
It is suitable for various substrates, such as galvanized sheets, calcium silicate board, glass magnesium board, rock wool, PU foam, expanded polystyrene foam board, extruded polystyrene foam board, phenolic board, etc. The volume of adhesive will be expanded during the curing process.

Advantages:
(1) Excellent adhesion to various substrates.
(2) Cures fast, shortens heat or cold setting time.
(3) Foam percentage 50-100%, benefits to fill cracks between the substrates.
(4) Solvent free, environmental friendly.
(5) Good humidity and heat resistance.

Technical Data Sheet of Flexibond 8204/8200:

	ComponentA(Resin)	ComponentB(Hardener)
Curing mechanism	Poly addition
Chemical base	Multiplehydroxyl compound	PAPI
Color	White	Brown
The coloraftermixing	Light yellow
Density (beforecuring)	1.6 g/cm³	1.2 g/cm³
Viscosity	25000-30000mpa.s (Brookfield - RVT 6/20)	200-300mpa.s (Brookfield - RVT 2/50)
Viscosity (aftermixing)	6000-10000mpa.s (Brookfield-RVT 6/20)
Mixingratio (by weight)	100	25
Pot life	30-50 mins
Open time (23, 50%RH)	50-60 mins
HardnessshoreD(GB/T 531-2008)	Approx 60
Shear strength (GB/T 7124-2008)	≥6Mpa (Aluminum alloy)
Shelflife (unopened below 25)	12months	6months

Application:
(1)Preparation:
Prepare a clean and dry drum for mixing the adhesive.
Mixing tool: Sticks for manual mixing or electric mixer.
Electronic scale: It would be better if the electronic scale can accurately weight to one decimal.

(2)Substrates Surface Treatment:
The substrates should be clean and dry and of no grease, dust, or other contaminations. The substrates can be cleaned by alcohol or acetone. If the metal surface is coated with primer, or the surface is polished, the adhesion can be improved significantly.

(3)Flexibond 8204/Flexibond 8200=4: 1
The resin (8204) 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. Use up the mixer as soon as possible before its pot life, or less frequent principle can be taken.

(4)Adhesive Coating:
The adhesive can be coated with spreading machine, rollers or serrated scrapers manually. The adhesive should be coated uniformly on the substrate surface. The recommended dosage is 200-400G/M2. The dosage varies with the roughness of the substrate surface.
The adhesive should be coated within its pot life.

(5)Pressing:
Substrates have been coated with adhesive should be pressed within open time, or the adhesion strength will be affected. Raise the compounding pressure as high as possible without affecting the material forming.
(6)Pressing time
The curing speed and the time to form adhesion vary with the temperature. The curing speed is slower and it takes longer time for pressing as the temperature is lower; The curing speed is faster and it takes shorter time for pressing as the temperature is higher. The pressing time is 4 hours under 23.

(7) Working Condition
Recommended working condition: Temperature 5-30, relative humidity <80. The curing speed will be affected if the temperature is too low. And too much bubble will be formed if the humidity is too high.

(8) Clean
Recommended Cleaner: Acetone, butanone.

Package:
Resin: 24kg/drum, 1000kg/drum
Hardener: 6kg/drum, 250kg/drum
The packaging can be adjusted according to customer's requirement.

Light Yellow Solvent Free Polyurethane PU Adhesive for Bonding Sandwich Panels