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Two component polyurethane PU glue for plywood and PU foam bondng
OverviewQuick DetailsCAS No.:9009-54-5Other Names:Polyurethane AdhesiveMF:-C3H8N2O-EINECS No.:210-898-8Place of Origin:Beijing, China (Mainl
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Overview
Quick Details
CAS No.:
9009-54-5
Other Names:
Polyurethane Adhesive
MF:
-C3H8N2O-
EINECS No.:
210-898-8
Place of Origin:
Beijing, China (Mainland)
Classification:
Double Components Adhesives
Main Raw Material:
Polyurethane
Usage:
Construction
Brand Name:
COMENS
Model Number:
Flexibond 8207
Type:
PU glue for plywood
Application:
Sandwich panel bonding
Material:
Polyurethane
Color:
Light Yellow
Keywords:
PU glue for polywood
Certificate:
MSDS, ISO, SGS
Packing:
20 Pcs
Shelf life:
12 Months
Pot life (23℃):
40-60mins
Open time (23℃, 50%RH):
60-80mins
Product name:
PU glue
Supply Ability
Supply Ability:
500000 Ton/Tons per Year PU glue for plywood
Packaging & Delivery
Packaging Details
1.) 24kg+6kg/Barrel,
2) 1000kg+250kg/Drum
Port
TIANJIN,CHINA
Lead Time :
7 Working Days

Two component polyurethane PU glue for plywood and PU foam bondngTwo component polyurethane PU glue for plywood and PU foam bondngTwo component polyurethane PU glue for plywood and PU foam bondng

 

Two Component Polyurethane Adhesive for Honeycomb and Sandwich Panel 

(Flexibond 8207)

 

1. Description: 

Flexibond 8207 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, rook 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.


2. Advantage
(1) Excellent adhesion to various substrates.

(2) Cures fast, shortens heat or cold setting time.

(3) Foam percentage 30-100%, benefits to fill cracks between the substrates..

(4) Suitable for scraping operation.

(5) Solvent free, environmental friendly.

(6) Good humidity and heat resistance.


3.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 8207/Flexibond 8200=4:1

The resin (8207) 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. The specifications can be referred to Figure 1. 

 

 Two component polyurethane PU glue for plywood and PU foam bondng

 

 

(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. The specifications can be referred to Figure 1.

 

(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℃. The specifications can be referred to Figure 2.

 

(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 it too high.

 

(8) Clean

Recommended Cleaner: acetone, butanone.


5. Packaging 
Resin: 24kg/drum, 1000kg/drum 
Hardener: 6kg/drum, 250kg/drum 
The packaging can be adjusted according to customer's requirement
 
6. Basic Technical Datao on  Flexibond 8204 /8204S
 
 

Component A(Resin)

Component B(Hardener)

Curing mechanism

Poly addition 

Chemical base

Multiplehydroxyl compound

PAPI

Color

White 

Brown

The color after mixing

Light yellow

Density (before curing)

1.7g/ cm3

1.2g/ cm3

Viscosity

15000-20000mpa.s        

(Brookfield – RVT 6/20)

200-300mpa.s       

 (Brookfield – RVT 2/50)

V iscosity (after mixing)

5000-8000mpa.s (Brookfield–RVT 6/20)

Mixing ratio (by weight)

100

25

Pot life (23℃)

                            40-60mins

Open time (23℃, 50%RH)

                          60-80mins

Hardness shore D (GB/T 531-2008)

Approx 60

Shear strength (GB/T 7124-2008)

≥6Mpa (Aluminum alloy)

Shelf life (unopened below 25℃)

12 months

6 months

 Two component polyurethane PU glue for plywood and PU foam bondng

Two component polyurethane PU glue for plywood and PU foam bondngTwo component polyurethane PU glue for plywood and PU foam bondng

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