1 and 502 glue are poisonous?
502 adhesive, also known as A- cyanoacrylate instant-drying adhesive, is a one-component instant-drying adhesive synthesized with α-cyanoacrylate as the main component and advanced production technology. Belonging to chemical products, it is harmful to human body to some extent, but it is harmless to people when used normally, and once cured, it is not toxic.
2. What should I do if my hand is stuck?
1. Keep dropping 502.
This method must seize the opportunity, that is, it must be used when the glue is not completely dry. When the glue just drops on your hand, quickly put your hand in cold water for a few minutes. At this time, you can see that the glue has become solid, and then you can buckle the glue from your hand.
Hard friction
502 glue can bond hard objects well, but some flexible ones often have no long-term effect. So, when your two fingers stick together, rub the glue between these two fingers hard and just click it casually, mainly to loosen the dried glue.
Use blisters
This method is relatively simple, that is, when the glue is just dripping on your hand and not dry, quickly put your finger in cold water for a few minutes, and you can see that the glue has turned into a solid, so you can easily buckle the glue off your hand. If the glue on your hand is dry, it will be useless to use water again, so you must seize the opportunity.
Use a hot towel
Call a pot of hot water, stick it on 502 glue and remove it with a damp and hot towel. After ten minutes, the cured 502 glue will become soft. Or soak in affordable hot water for a while until the glue becomes soft.
5. Use the hardness of glue
502 glue is hard after it dries, which is both an advantage and a disadvantage. The advantage is that it can bond hard objects well, but some flexible ones often have no long-term effect, which means that the glue is well bonded at first and will open after a while. Using this feature, when your two fingers stick together, rub the glue between them hard. The rubbing method is actually very casual, mainly to loosen the glue. Rub it for a while and try to separate the two fingers. If not, keep rubbing and the problem will be solved in half an hour.
Use insulating oil
Insulating oil can help to wipe off 502 glue, pour a proper amount of insulating oil on the glue and rub it, and slowly remove 502 glue.
7. Use organic solvents
502 glue is a kind of resin glue, as long as you use an organic solvent that can dissolve the resin, such as acetone. But acetone is toxic, so don't use it easily.
8. Use 77 1 glue remover.
Cleaning with 77 1 glue remover is environmentally friendly, and does not hurt hands or materials.
9. Freeze in the refrigerator
It is said that freezing in the refrigerator will drop the glue (it has not been tested and I don't know if it will work).
10. Natural shedding method
If your hand sticks to a piece of paper or other small things, don't worry. If it doesn't interfere with your daily life, you can leave this glue in your hand for one day and it will fall off automatically within two days. This method is to wait, don't worry.
1 1 with cotton gloves
Gloves can prevent glue from dripping on your hands, but not all gloves can protect you. If the gloves are rubber or plastic, the glue will melt the gloves and release heat, which may burn your hands. So gloves should be made of cotton.
12. Wet your fingers
Another simple way is to sprinkle some water on your hands. Glue will soon become solid when it meets water, and it won't touch your skin at all, so it won't stick to your hands.
13. Rub some powder on your hands.
Apply powder particles such as flour or foundation to your hands in advance, or simply rub some soil on the ground. When the glue drops on the hand, it can only stick to the powder on the hand, and there is nothing wrong with the hand.
3. What if I get it on my clothes?
1. Drop banana water on the 502 glue stain of clothes, and then brush it against the glue stain continuously. After a period of time, the glue will soften and fall off the clothes. Then rinse with clean water and dry.
2. Because the solvent of 502 glue is acetone, as long as the clothes stained with 502 glue do not contain acetate fiber, they can be cleaned with acetone, because if 502 glue is stuck on acetate fiber, the fiber will dissolve, which will cause holes. Pay great attention to the usage when using acetone:
A. First, turn the clothes to the back, and pad absorbent materials such as toilet paper under the stain; B, drop acetone around the stain and gradually dissolve it from outside to inside. If you feel slow, you can also gently squeeze and pat with a layer of cloth; C, replacing the adsorption material, and repeating the above operations until all the materials are dissolved.
3. Use the same 502 to melt the clothes where they get 502 glue, and then wash them off quickly with water.
4. Use insulating oil, but it is difficult to find insulating oil, usually found in transformers. Insulating oil works well. 502 glue can be softened quickly and then washed off directly.
In fact, if only a small area is coated with 502 glue, it can be removed by soaking in hot water. Of course, if a large area of 502 glue is covered, it is necessary to apply acetone, which is the best removal method.
4.502 How to use glue?
1. Before use, clean the surface of the adherend to remove dust, oil stain and rust. When bonding metals, it is best to grind them first. When bonding plastics such as PE and PP, surface activation should be carried out first.
2. Open the front cover of the glue bottle, gently buckle the tip with your fingers, leaving no residual liquid, and then cut out the hole with scissors.
3. Drop a small drop of this glue on the surface of the adherend, and stick it immediately until it becomes hard. Of course, the bonding area should not be too large.
4. Wipe the glue bottle clean after use, cover it tightly, and store it in a cool and dry place or in cold storage.
5, with 502 glue matters needing attention
This product adheres quickly to prevent skin and clothes from sticking during operation. This product has weak tearing property, so be careful not to splash it into eyes, and pay attention to ventilation when using it.
1. The steam of this adhesive will irritate eyes, so be careful when using it.
2. Avoid contact with skin and eyes. If there is an accident, immediately rinse with plenty of water and send it to the hospital. When cleaning eyes, you can use dilute sodium bicarbonate solution.
3. When touching your hands, you can wash your hands with soapy water, washing liquid or pumice.
6. Analysis of clothing made of different materials
(1) cotton
Features:
1, good hygroscopicity, soft to the touch, hygienic and comfortable to wear;
2. The wet strength is greater than the dry strength, but the whole is firm and durable;
3, good dyeing performance, soft luster, natural and beautiful;
4, alkali resistance, high temperature alkali treatment can be made into mercerized cotton.
5, the wrinkle resistance is poor and the shrinkage rate is large;
Washing method:
1, good alkali resistance and heat resistance, can be used in various detergents, can be washed by hand and machine, but can not be bleached by chlorine;
2. White clothes can be washed with strong alkaline detergent at high temperature to play a bleaching role;
3, do not soak, clean in time;
4, should be dry in the shade, avoid exposure, so as to avoid dark clothes fade, when dried in the sun, the inside will be outward;
5. Wash separately from other clothes;
6. The soaking time should not be too long to avoid fading;
7. Don't wring it out.
Maintainability:
1, avoid long-term exposure to the sun, so as not to reduce the fastness and cause fading and yellowing;
2. Wash and dry, and separate dark and light colors;
3, pay attention to ventilation, avoid humidity, so as not to be moldy;
4, underwear can not be soaked in hot water to avoid yellow sweat spots.
(2) Cannabis
characteristic
1, breathable, unique cool feeling, sweating does not stick to the body;
2, rough feel, easy to wrinkle, poor drape;
3. Hemp fiber is hard and has poor cohesion;
Washing method:
1, which is basically the same as cotton fabric washing requirements;
2. It is softer than cotton fabric when washed. Avoid hard scrubbing, hard scrubbing and twisting.
Maintainability:
It's basically the same as cotton fabric.
(3) hair
characteristic
1. protein fiber
2. Soft and natural luster, soft to the touch, more elastic than other natural fibers such as cotton, hemp and silk. Good wrinkle resistance, good wrinkle resistance and shape retention after ironing 3. Good warmth retention, good sweat absorption and permeability, and comfortable to wear.
Washing method
1. Alkali-resistant, neutral detergent should be selected, preferably special detergent for wool.
2. Soak in cold water for a short time, and the washing temperature shall not exceed 40 degrees.
3. Squeeze and wash, avoid rubbing, squeeze out water, evenly spread or fold and hang in the shade, and do not expose to the sun.
4. Wet shaping or semi-dry shaping can remove wrinkles.
5. Don't use the pulsator washing machine for machine washing. It is recommended to use the drum washing machine first and choose the light washing gear.
6. It is recommended to dry-clean high-grade clothes made of all wool or wool blended with other fibers.
7. Jackets and suits should be dry-cleaned, not washed.
8. Don't scrub with a washboard.
maintainability
1. Avoid contact with sharp, rough and strongly alkaline objects.
2. Select a cool and ventilated place to dry and collect it, and put in a proper amount of mildew-proof and moth-proof chemicals.
3. During the collection, the cabinet should be opened regularly, ventilated and kept dry.
4. In the hot and humid season, dry it several times to prevent mildew.
Step 5 avoid distortion
(4) Silk
characteristic
1. protein fiber
2. Glossy, with a unique "silky feeling", smooth to the touch, comfortable to wear, elegant and luxurious.
3. The strength is higher than wool, but the wrinkle resistance is poor.
4. It is more heat-resistant than cotton and wool, but its light resistance is poor.
5. Stable to inorganic acid and sensitive to alkali.
Washing method
1. Avoid alkaline detergent, and choose neutral or special detergent for silk.
2. Wash with cold water or warm water, and don't soak for a long time.
3. Wash gently and avoid brushing with a hard brush.
4. It should be dried in a cool place, avoiding sunlight and not drying.
Some silk fabrics should be dry-cleaned.
6. Dark silk fabrics should be rinsed with clear water to avoid fading.
7. Wash separately from other clothes
Step 8 avoid distortion
Maintenance method
1. Expose to the sun to avoid fading, yellowing and color deterioration caused by lowering the fastness.
2. Avoid contact with rough or acidic or alkaline substances.
3. Wash, iron and dry before collection, preferably folded and wrapped in cloth.
Don't put mothballs, or the white clothes will turn yellow.
5. Pad cloth when ironing to avoid aurora.
Man-made fiber (viscose fiber, acetate fiber, cuprammonia fiber, Fuqiang) * *
(5) Tencel
characteristic
1. The main component of regenerated fiber is the same as cotton and linen, which is cellulose.
2. Brightly colored, soft to the touch and comfortable to wear.
3. Poor wrinkle resistance, not stiff
4. The shrinkage rate is large, and the wet strength is about 40% lower than the dry strength.
5. The wet strength of Tencel only decreased by 15%.
Washing method
1. The washing requirements of cotton fabrics are basically the same.
2. It is softer than cotton fabric when washed. Avoid hard scrubbing, hard scrubbing, hard twisting and folding to squeeze clean water.
3. Feel free to soak, and the water temperature should not exceed 45 degrees.
4. Avoid sun exposure and dry in the shade.
Wash separately from other clothes.
maintainability
It's basically the same as cotton fabric
Washing method of polyester fiber
characteristic
1. Strong and durable, with crisp folds and good dimensional stability.
2. Poor water absorption, easy to wash and dry, no need to iron.
3. It is easy to generate static electricity and pilling.
4. It's uncomfortable to wear
Washing method
1. It can be washed with various washing powders and soaps.
2. The washing temperature is lower than 45 degrees Celsius.
3. Machine washable, hand washable and dry-cleaned.
4. You can use a brush.
maintainability
1. Don't be exposed to the sun.
2. Not suitable for drying
(6) Nylon is also called nylon.
characteristic
1. Good elasticity and wear resistance.
2. Not resistant to sunlight, easy to age
Washing method
1. Choose general synthetic detergent, and the water temperature should not exceed 45 degrees.
2. You can gently twist it to avoid exposure to the sun.
3. Low temperature steam ironing
4. After cleaning, ventilate and dry in the shade.
maintainability
1. The ironing temperature shall not exceed 1 10 degrees.
When ironing, you must use steam instead of dry ironing.
(7) nylon (synthetic)
characteristic
1. light-resistant
2. Light weight, warmth, strong hand feeling and poor drape.
Washing method
1. Rub lightly and wring out the water.
2. Pure nylon can be dried in the sun, and blended fabrics should be dried in the shade.
(8) spandex (Lycra)
characteristic
1, with good elasticity. It is called elastic fiber and can be steam ironed at low temperature for washing and dry cleaning.
All cotton mercerization.
2. The high-count cotton fabric is treated with high-concentration caustic soda first, and then treated with high-quality softener, which has the luster of silk and is refreshing, smooth and comfortable to wear.
3. Single mercerizing is one light treatment, and double mercerizing is two mercerizing treatments, which has better effect.
Washing method:
Cotton fabric and cotton fabric
Wool polyester fabric
Features:
1. Advantages of wool and polyester fiber
2. Light texture, good wrinkle recovery, durable wrinkle resistance, stable size, easy washing and quick drying, strong and durable.
3. Not suitable for moth-eaten, but it doesn't feel as smooth as the whole hair.
Washing method:
1. Neutral detergent or special wool detergent should be selected to avoid alkaline detergent.
2. Wash gently, don't wring it out, and dry it in the shade.
3. Dry cleaning recommends high-end clothes.
Suits and jackets should be dry-cleaned, not washed.