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LPT220 Adhesive for rubber and metal
LPT220 adhesive is a variety of unvulcanized rubber and metal coated with LPT205.
- Commodity name： LPT220 Adhesive for rubber and metal
- Commodity ID： 1185227215625408512
Use:
LPT220 adhesive is a variety of unvulcanized rubber and metal coated with LPT205.
Features:
1. High strength bonding a variety of unvulcanized rubber and coated with LPT205 metal, applicable rubber: natural rubber, styrene butadiene rubber, neoprene, nitrile rubber, isoprene and other rubber.
2. Heat resistance, water resistance, salt spray, chemicals, grease, a variety of solvents and corrosive atmosphere, with good corrosion resistance and environmental resistance.
3. The dry film is hard and has erosion resistance, which is suitable for injection molding vulcanization process.
4. After gluing, it can be parked for a long time.
5. Good environmental resistance.
Performance:
Appearance: black viscous liquid
Viscosity:(25 ℃,mPas)100~300
Solid content: 23 ~ 28% (weight)
Diluent: xylene, toluene, chlorinated solvent
Process
metal surface treatment:
Correct treatment of the metal surface is an important factor in obtaining a good bond.
There will be anti-rust grease and other pollutants on the metal surface. It should be noted that there is a layer of oxide film in the air on the metal surface, such as (copper, electroplating workpiece), which will be ignored when gluing! These can have a significant impact on bonding, leading to debonding. Mechanical method of metal surface selection of 200-400 micron particle size of quartz sand or alumina sandblasting treatment, and then solvent degreasing treatment, chemical treatment methods are phosphating, acid, alkali treatment, chemical treatment is very important in the solution of the residence time, solution concentration, temperature control, and cleaning fluid to be replaced in a timely manner!
Coating treatment agent: Apply LPT205 to the treated metal surface and dry it.
Dilution: direct application of glue without dilution, if required by actual operation. It can also be diluted with the aforementioned diluent in an appropriate amount.
Stirring: before the glue by fully mixing, to achieve uniform mixing before use.
Glue coating: LPT220 is coated on LPT205 dry film by brush coating or dipping method, roller coating method, spray coating method and transfer method.
Glue application suggestion: pay attention to keep the thickness of the coating film uniform when brushing; During dipping, xylene or toluene with 5-10% stock solution volume can be diluted, and the viscosity can be controlled to 35-40 seconds (Zahn#2 cups). Reasonable adjustment of glue speed can reduce flowing and dripping. After xylene or toluene with 25-50% stock solution volume can be used for spraying, the viscosity can be controlled to 22-28 seconds (Zahn#2 cups) to prevent dry spraying from affecting bonding.
Adhesive thickness: (dry film) 12.5-25.5 μm. The optimum thickness depends on the rubber formulation and the required bonding requirements.
Drying: dry at room temperature for about 45-60 minutes after coating, if the high temperature (65~82 ℃) drying, the time can be controlled in 20-30 minutes.
Parking: according to the need to vulcanize immediately after drying, can also be parked for a long time to vulcanize, but to avoid pollution.
Vulcanization: When the coated part is placed in the hot mold, the rubber should be filled quickly and the mold should be closed to prevent the adhesive from pre-curing and failure, so as to ensure that the adhesive and rubber are vulcanized at the same time and obtain the best bonding performance.
Vulcanization conditions: depends on the vulcanization conditions of the compound.
Note:
1. should be stored in a cool and dry place, away from heat and fire.
2. The solvent is volatile, please cover the container tightly after use.
3. The solvent vapor is harmful, and the workplace is fireproof and ventilated to prevent long-term inhalation or long-term skin contact.
Typical data
Lpt205 Nitrile Rubber and Steel Plate Weather Resistance Test
|
Medium
|
experimental conditions
|
Destruction state
|
|
Gasoline
|
20 days at room temperature
|
100%R
|
|
Turbine Oil
|
150 degrees * 20 hours
|
100%R
|
Storage methods and shelf life
Store in a cool and ventilated place at 25 ℃. Under unopened conditions, the product can normally be guaranteed for 12 months. If the product exceeds the valid period, quality inspection and bonding test shall be carried out. In addition, it is recommended to use up the remaining glue as soon as possible after unsealed use. We have suitable packages: 1kg/can, 3.0kg/can and 15kg/barrel. Please purchase according to the production plan.
Precautions
1, before curing should try to avoid contact with the skin, eyes, if accidentally splashed into the eye, should quickly rinse with plenty of water and seek medical treatment.
2. This product is flammable, please store and transport it according to flammable, and do not encounter open flame.
3. The construction site must be well ventilated.
4) Stay away from children.
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