中文版
English
Description：
Wellmid 2012 is a multi-purpose, two-component, room temperature cured ultra-low viscosity epoxy adhesive with permeability, long work time, high strength and good toughness. Ideal for bonding and potting metals, ceramics, glass, laminates, rigid composites and plastics, as well as most commonly used materials. Applications include the production, assembly and sealing of electronic components, industrial parts, and large-area bonding and impregnation.
Key properties：
● Long operating time after mixing
● Suitable for large area sizing and impregnation
● Low viscosity, good permeability
● Suitable for bonding and encapsulation of most commonly used materials
● Excellent performance in water resistance, chemical corrosion resistance and moisture resistance
● Mix ratio by volume：100:50 / Mix ratio by weight：100:40
| Property | 2012RESIN（A） | 2012HARDENER（B） | 2012AB(Mixed) |
| Colour (visual) | Transparent/Black | Transparent brown | Transparent brown/Black |
| Specific gravity | 1.10~1.15 | 0.90~0.95 | 1.05~1.10 |
| Viscosity at 23-25℃ | 0.5~2 Pa.s | 20~25 Pa.s | 5~8 Pa.s |
| Pot Life at 23-25℃ | - | - | 45~60 minutes |
After 2012 AB cured, the color is transparent brown, and black is also produced. For details, please refer to the product drawing;
Pretreatment：
The strength and durability of a bonded joint are dependant on proper treatment of the surfaces to be bonded. At the very least, joint surfaces should be cleaned with a good degreasing agent such as acetone, alcohol or other proprietary degreasing agents in order to remove all traces of oil, grease and dirt. The strongest and most durable joints are obtained by either mechanically abrading or chemically etching (“pickling”) the degreased surfaces. Abrading should be followed by a second degreasing treatment.
Application of adhesive：
Wellmid 2012 AB must be thoroughly mixed in the corresponding proportion to achieve the best bonding effect.
Side-by-side cartridges and the static mixer can achieve better mixing results while increasing efficiency and reducing waste and pollution. The resin and hardener can be applied directly to the pretreated dry bonded surface through the mixer. A layer of 0.05-0.10mm thick adhesive layer can completely wet the adhesive surface, and give the adhesive with maximum shear strength. Too thick adhesive layer and too much glue around, and can not bring greater bonding strength to the adhesion.
Equipment maintenance：
All tools should be cleaned with hot water and soap before adhesives residues have had time to cure. The removal of cured residues is a difficult and time-consuming operation. If solvents such as acetone are used for cleaning, operatives should take the appropriate precautions and, in addition, avoid skin and eye contact. Used cartridges and mixers cannot be used again.
Curing Time and Temperature：
| Curing temperature | 10℃ | 15℃ | 25℃ | 40℃ | 60℃ | 80℃ | 100℃ |
| Cure time to reach 50% shear strength | - | 24H | 15H | 5H | 60min | 30min | 10min |
| Cure time to reach 100% shear strength | - | 72H | 48H | 16H | 90min | 50min | 25min |
More 2012 A and B is mixed at room temperature, the curing will be accelerated, the working time will be shortened, and the heat generated during the curing reaction will increase;
DIY workers mixing the glues on the plastic lid that comes with th e tin can reduce pollution, and the glue remaining on the plastic lid can be easily removed after the glue has cur ed;
Side-by-side cartridges and the static mixer is suitable for co ntinuous production of the dispensing gun / machine, which can greatly improve production efficiency and reduce waste and pollution.
Storage and Packing：
Wellmid 2012 A and B must be stored at room temperature provided the components are stored in sealed containers. Avoid sunlight, the longest effective time of the product can be more than 48 months; The expiry date is indicated on the label.
Package : 2oz(56.7Grams) / 1.4lb(635.6Grems) / 3kg Tin can sets; 50ml / 400ml Cartridge.
