I. technical indicators
1) viscosity: 2-300mpa.s
2) maximum filling gap: 0.05-01mm
3) tensile shear strength: greater than or equal to 6-10
4) curing time: 3-30s
5) shelf life: 3 months
Mainly in ingredients
A - cyanoacrylate, polymerization, thickening agent, accelerator composition.
Three, features,
Low viscosity, fast solid speed, wide application, short duration, low price and practical.
Fourth, use
Mainly used in metal, rubber, leather, general plastics, glass, wood, paper, ceramics, jade, assembly line production.
Principal component: N
CH2 = C (CN) - - C2H5 COO
Physical and chemical properties: colorless transparent, low viscosity, non-flammable liquid, single component, no solvent, slightly stimulating, volatile, volatile gas with weak tear. When wet moisture is catalyzed, quickly solidify and adhere. It is non-toxic after curing.
The characteristics of
1. Single component: no solvent, easy to use.
2. Instant follow-up: trace moisture in the atmosphere can be followed within a very short time.
3. Room temperature hardening: it can be used without heating.
4. Transparent and colorless: good effect without deterioration.
5. High viscosity: suitable for porous and absorbent material
Use method of glue and matters needing attention
Method of use
1. Clean the following surface first, remove the dust, oil, rust, etc., and then grind the metal first. For plastics such as PE, PP or PTEE, the surface should be activated first.
2. Open the front cover and tap the tip with your fingers, leaving no residual liquid, then cut the hole with scissors.
3. Put a small drop of the reagent on the followed surface, and immediately continue the reagent until hardening. The next area should not be too large, and the next layer thickness should not exceed 0.2mm.
4. Wipe the container after use and put the lid on. Store in a cool and dry place or refrigerate.
Matters needing attention
1. The vapors of the agent will stab mucous membranes and eyes.
2. Avoid contact with skin and eyes. If accidental, wash with plenty of water immediately and send to doctor.
3. Wash hands with soap, water, cleaning solution and pumice stone when touching them. Otherwise it will condense on the hands for a while and will recede after a few days.
Storage: 20 ℃ below 3-12 months.
Structural formula: CH2=C(CN)-COO-C2H5
Principle: in the air in the trace water catalyzed by the addition of polymerization, rapid solidification and will be adhesive.
While bringing convenience, 502 sometimes sticks to things you don't want to paste. The methods to remove them are as follows:
1. Use banana drop to put on the glue water stain, and keep stirring with the old toothbrush until the glue stain is soft and removed, then rinse with clean water and brush repeatedly until it is clean.Put a absorbent cloth on the back of the garment with the traces of glue. Then put some white vinegar on the marks
2. Use insulating oil. Pour the insulating oil in the transformer on the table.
3, 502 glue is a kind of resin glue, as long as the organic solvent that dissolves the resin can be used, for exampleacetone.But inhaling acetone is toxic, watch how you use it, and you can stuff the glue into the bottle. It is said that if you put it in the refrigerator, the glue will also fall off. You can try it first.
4. Small area with 502 glue, just soak it with hot water. If large area is covered with 502 glue and coated with acetone, it can be removed in about 5-10 minutes.
5. Acetone, gasoline and sesame oil are recommended. Put the insulating oil in the transformer on your hand.
6. Sealed heating can explode. Try not to use this dangerous method.
7. If you are unlucky enough to stick to the skin, you can use the nail remover (water) or the nail remover to quickly dissolve the glue on the skin. ,
