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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Classification: Other Adhesives
  • Main Raw Material: Polyurethane
  • Usage: Transportation
  • Brand Name: JOIN LEADER
  • Model Number: JOINFLEX 122
  • application: bodywork joint

Packaging & Delivery

Packaging Details 310ml cartridge; 400ml & 600ml sausage.
Delivery Time 30 DAYS


1. Single part polyurethane sealant
2. Used for eyeable parts and common joints of car bodywork

JOINFLEX 122 Bodywork PU Sealant




JOINFLEX 122 Bodywork PU Sealantis a one part, neutral cure, solvent free polyurethane sealant with high adhesion strength, good elasticity, aging resistant, vibration exhaustion resistant and multi coatings paintable.

JOINFLEX 122 Bodywork PU Sealant has high adhesion strength, good elasticity, aging resistant, vibration exhaustion resistant and multi coatings paintable.



Non-corrosion to substrates;
Thixotropic ,no sag.

Little Volatile Odor

High modulus & tensile strength

Excellent adhesion on glass and metal surface

Outstanding durability

Permanently flexible


Paint-spray able Surface



As Supplied – tested at 23°C±2°C, RH50%±5%:

Item                                         Data                 

Aspect:                            Thixotropic Paste

Gravity, g/cm3                     1.25~1.35

Tack Free Time, min.                   30~60

Extrudability, ml/min.                   ≥80

Sag/Slump, mm                       ≤1                      

Curing depth, mm/24hr                3

Service Temp, °C                      -50 ~+90 (continuous)

                                      +120 short time (up to 8 hrs)

Application Temp, °C                   +5~+45


As Cured – tested at 23°C±2°C, RH50%±5%

Hardness, 24H, Shore A           ≥15                

Hardness, 7d, Shore A           ≥35                

Depth of curing, 24H, mm           ≥3                    

Depth of curing, 7d, mm           ≥6                      

Recovery of elastic, %             ≥80                  

Shrinkage                         ≤5                    

Tensile modulus(MAX), MPa       3.0                  

Modulus at 100% elongation, MPa   ≥1.2                  

Peel strength, N/mm               ≥10                  

Shear strength, MPa               ≥2.5

Elongation at break, %             ≥450                

Solid content, %                   ≥95                            

Resistance to dilute acids and bases General

Water and salt spray resistance       Good

Compatibility with paints            Yes                          




JOINFLEX 122 Bodywork PU Sealant can be used on eyeable parts and common joints of car bodywork, like front and back panier panel; engine cabin, luggage cabin, floor, car door, car fundus, gasoline entrance, wing beard and fold parts.

JOINFLEX 122 Bodywork PU Sealant is also suitable for visible joints, e. g. for gap filling around windows in bus, coach, and train assembly.

JOINFLEX 122 Bodywork PU Sealantis suitable for Vehicle and car body construction, bonding of side panels and roof in bus construction, container and caravan con-construction, ship and metal construction.



JOINFLEX 122 Bodywork PU Sealant is not suitable for adapting to structural fitting and following situations:

1. To all surfaces that bleed oil, organic acid, alkali, plasticizers or solvents such as wood immersed in oil, oil crack filler, and some uncured or sulfurized fat and to surface where is wet;

2. To the substrate that the surface temperature exceeds +45°C or apply at temperatures below +5°C;

3. Use in the manufacturer of IG units;

4. To the surfaces that with direct touch of food.

5. Do not use for structural glazing.

6. Not recommended for continuous water immersion applications.

7. Not recommended for use in below ground joints or trafficable

8. Joints where abrasion and physical abuse are encountered.

9. Avoid exposure to high level of chlorine.

10. Avoid contact with alcohol and other solvent cleaners during cure.

11. Do not cure in the presence of curing silicone sealants.

12. Do not apply when a moisture vapour transmission condition exists at time of application, as this can cause bubbling within the sealant




Cleanse with a cleaning agent, to keep the substrate surfaces completely clean(JOIN LEADER also provide the cleaning agent for your convenience).

Use the sealant after cleaning agent dries, around 1~2mins later. You can use two different cloth, one for cleaning agent, and the other for sealant. (Notice that the two can’t be mixed use together, and the second cloth will be better purified cotton and no picking.)

For better appearance, cover outside of joint areas with masking taps before application.

Cut nozzle to desired size and extrude sealant to joint areas.

Tool immediately after sealant application, make it smooth and remove masking tape before sealant skins.



12 months in unopened packaging in a cool and dry storage place at temperatures between +5°C and 25°C.



Grey, black and white.

Also we can produce the sealant with special color upon customers' requirement.



Cartridge: 280ml, 300ml

Sausage: 300ml, 600ml

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