2019 Two Component Super Strength Bonding CFRP Epoxy Adhesive

Wellmid2019 is a multi-purpose, two-component, light-weight thixotropic epoxy adhesive that is basically cured at room temperature and then cured at high temperature to highlight better performance. It has high strength, good toughness and elasticity, and can withstand high temperatures up to 140C. Widely suitable for bonding metals such as aluminum alloys and carbon fiber composite materials, epoxy glass fiber reinforced plastics,and most commonly used materials. Good weather resistance, excellent water and chemical resistance.A pplications bonding such as sports equipment, equipment parts, composite material parts and other structural parts that require dynamic load resistance....
详细介绍

Typical applications

● Structural bonding of bicycle (racing) carbon fiber tripods and front forks;
● Sealing bonding of precision optical lens composite shell and optical glass;
● Strong structural bonding of UAV composite fuselage and metal parts;

Description

Wellmid2019 is a multi-purpose, two-component, light-weight thixotropic epoxy adhesive that is basically cured at room temperature and then cured at high temperature to highlight better performance. It has high strength, good toughness and elasticity, and can withstand high temperatures up to 140°C. Widely suitable for bonding metals such as aluminum alloys and carbon fiber composite materials, epoxy glass fiber reinforced plastics,and most commonly used materials. Good weather resistance, excellent water and chemical resistance.A pplications bonding such as sports equipment, equipment parts, composite material parts and other structural parts that require dynamic load resistance.

Key properties

● High temperature resistance up to 140 ℃

● Non-flowing light thixotrope, easy to operate and use

● Can resist most chemicals, good weather resistance and water resistance

● Can bond most materials, such as CFRP, EP-GRP, aluminum alloy, etc.

● Super high shear strength, tough and elastic, good dynamic lo ad performance

● Mix ratio by volume:100:50 / Mix ratio by weight:100:43

Property2019RESIN(A)2019HARDENER(B)2019AB(Mixed)
Colour (visual)BlackPale yellowBlack
Specific gravity1.201.001.10
Viscosity at 23-25℃80~100 Pa.s
10~15 Pa.sThixotropic
Pot Life at 23-25℃--

100~120 minutes

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 2019 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 temperature25℃  40℃  60℃  80℃  100℃  130℃  150℃  
Cure time to reach 50% shear strength  6H2H30min20min10min6min5min
Cure time to reach 80% shear strength 24H8H4H2H1H30min15min
Cure time to reach 100% shear strength  --5H3H2H60min30min

Wellmid2019 can achieve a basic curing state at room temperature with certain strength, but due to the formulation's design of a medium to high temperature post-curing activation program, the adhesive cannot be fully cured when it is lower than 60°C. It is recommended to cure at room temperature for 6-24 hours, then raise the temperature to 80°C~150°C and cure again for 0.5~3 hours; Or refer to the above table to select the curing temperature and curing time suitable for the production process to achieve the best performance of this product formulation design.

DIY workers mixing the glues on the plastic lid that comes with the 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 continuous production of the dispensing gun / machine, which can greatly improve production efficiency and reduce waste and pollution.

Storage and Packing

Wellmid 2019 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 36 months; The expiry date is indicated on the label.

Package: 2oz(56.7Grams) / 1.43Lb(649.22Grams) / 3kg Tin can sets; 50ml / 400ml Cartridge.