Description
NB-40 medium temperature curing structural adhesive is two-component adhesive
cured at about 130 degree C. It is used for bonding metal pieces.
1. Specification
Main Ingredients: Modified epoxy, hot melt of engineering plastics, rubber, etc.
Appearance: NB-40A is glue film, NB-40B is liquid. NB-40A & NB-40B can be used together, and can also be used alone.
Typical product data:
Shear strength at: 20 degree C > 25MPa
60 degree C > 18MPa
100 degree C > 10MPa
Peel strength at 20 degree C: > 68N/cm
2. Processing
2.1 NB40A film used alone
When using NB40A film, take the separation paper away, paste it on the surface of
workpiece. The joint components should be assembled and clamped as soon as the adhesive film has been applied. An even pressure of 0.1-0.5MPa throughout the joint area will ensure optimum cure. Curing temperature is 130℃ for 3 hours.
2.2 NB40B liquid used alone
When NB40B is used alone, spread a thin layer of NB-40B on the metal surface, 15 minutes later, spread another layer on the surface, preheat it to 60 ℃ for 15 minutes. The joint components should be assembled and clamped as soon as the adhesive has been applied. An even pressure of 0.1-0.5MPa throughout the joint area will ensure optimum cure. Curing temperature is 130℃ for 3 hours.
2.3 NB40A & NB40B used together
When NB40A & NB40B used together, spread a layer of NB40B on the bonding surface, and wait for 30 minutes at room temperature, preheat to 60 degree for 15 minutes, and then paste NB40A on the bonding surface. An even pressure of 0.1-0.5MPa throughout the joint area will ensure optimum cure. Curing temperature is 130℃ for 2 hours.
3.Application
Space industry:
• It has been used for bonding some parts of Rotor by some Aviation factory.
Civil field：
• Used for bonding metal to metal.
4.Transport
NB-40A is adhesive film. It is not considered hazardous and therefore is not regulated by DOT or IATA.
NB-40B is flammable liquid.
5. Storage
Store at 0-4 degree C.
Shelf life is 3 months.
6. Caution
Our product are generally quite harmless to handle provided that certain precautions normally taken when handling chemicals are observed. The uncured materials must not, for instance, be allowed to come into contact with foodstuffs or food utensils, and measures should be taken to prevent the uncured materials form coming in contact with skin, since people with particularly sensitive skin may be affected. The wearing of impervious rubber or plastic gloves will normally be necessary; likewise the use of eye protection. The skin should be thoroughly cleansed at the end of each working period by wash with soap and warm water. The use of solvents is to be avoided. Disposable paper-not cloth towelsshould
be used to dry the skin. Adequate ventilation of the working area is recommended. |
NB-990 Room Temperature Curing and Heat-Resistant Adhesive