| Q. | How does cyanoacrylate work? | |
| Ans. | Anchor Principle: The glue full the gap between two substrates, then the solvent will evaporate into the air, left the cyanoacrylate combine with the water in the air, and cure. | |
| Q. | If the glue is stickier, does it have faster cure speed? | |
| Ans. | No, the stickier glue has slower cure speed. This is because in order to increase the viscosity, tackifier is needed to put inside the glue, and it will slow down the cure speed. | |
| Q. | Why does the blooming happen? | |
| Ans. | The active molecules of the glue will spread all around the cure area before they are total cure, and cause the blooming. | |
| Q. | Is cyanoacrylate’s volume the same after the curing process? | |
| Ans. | It depends on the environment; the faster the glue cure, the less volume it loss. Basically the glue’s loss is less than 0.1% | |
| Q. | Why does the low blooming glue also has less odor? | |
| Ans. | This is because it has longer molecular chain, the active molecules are harder to escape, and this makes it has less odor and blooming. | |
| Q. | Why the cyanoacrylate has different viscosity? | |
| Ans. | The formula is different, depends on the different customers’ requirement and situation. | |
| Q. | Why use Methoxy? Not Ethoxy? | |
| Ans. | Methoxy is the main stream of the market, the speed & viscosity and odor are all better than Ethoxy. | |
| Q. | Can Methyl be used on stainless steel? | |
| Ans. | Yes, Methyl can be used on all metal material; it has better affinity than ethyl when using on metal substrate. | |
| Q. | When the substrate’s surface is coarser, is it easier to stick? | |
| Ans. | Basically yes, except for those special material and special treatment. | |
| Q. | PE material is used as adhesive product’s bottom, is this because it has poor affinity? | |
| Ans. | Yes, PE is a high density material, so the air cannot go through it. Aluminum is better than PE, because the air is more difficult to go through it. | |
| Q. | The connection between blooming and adhesive? | |
| Ans. | The faster the cure speed, the less the blooming. For normal industrial adhesive (except for no-blooming product), the blooming is highly affect by its cure speed. Also, the cyanoacrylate is slower to cure when in the cold and dry environment. | |
| Q. | The reason the cure speed to slow down? | |
| Ans. | The change of the environment (like temperature and humidity), different material (or same material but different supplier), different operational methods, or the change of customers own standard. | |
| Q. | What are the reasons of the shelf life of glue to become shorter? | |
| Ans. |
1. The poor storage environment. 2. Expose to the direct of sunlight 3. Being contact to the air. 4. Mixed with other material. |
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| Q. | What are the reasons of the glue’s viscosity became weaker? | |
| Ans. |
1. The changing of material (or same material, different supplier) 2. The changing of the application area and shape. 3. The changing of the environment (like weather) 4. The substrates are not totally cure, cause poor adhesion. |
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| Q. | What is the temperature range can normal cyanoacrylate be used? | |
| Ans. | -55℃- 80℃ | |
| Q. | What is the best storage condition of the cyanoacrylate adhesive? | |
| Ans. | Low temperature (10-15℃), dry, no direct sunlight. | |
| Q. | What is the standard test environment for cyanoacrylate? | |
| Ans. | There is no common standard between different company; for our R&D, the standard is temperature 25℃, humidity 70-80%. | |
| Q. | What are the S.G.S / ASTM / EN standard? | |
| Ans. | The S.G.S / ASTM / EN certification of our company is ASTM F963-96a, European standard is EN-71.) | |
| Q. | Does cyanoacrylate has boiling point? | |
| Ans. | When under the normal environment (1 mmHg), there is no boiling point due to it will cure before boil. However, when under 6mmHg, the boiling point of the cyanoacrylate is 65℃. | |
| Q. | What is the specific gravity of the cyanoacrylate adhesive? | |
| Ans. | Basically the specific gravity is like water, and there is little difference between before or after cure. | |
| Q. | What is Flash Point means? | |
| Ans. | When cyanoacrylate reaches the flash point temperature shows on the TDS, if there is any fire approach, it might burn. However, even reach the flash point, the cyanoacrylate will not spontaneous combust without any fire nearby. | |
| Q. | What is Dielectric means? | |
| Ans. | The higher the dielectric number, the greater performance the electronic can pass the cyanoacrylate. | |
| Q. | What is Softening Point means? | |
| Ans. | When cyanoacrylate reach the Softening Point temperature shows on the TDS, the cured glue will became liquid again, and loss the adhesion ability. When the temperature goes down, the glue will cure again, but the viscosity will decrease. | |
| Q. | What is the Cas No. means? | |
| Ans. | Every chemical product has its own Cas No. (Chemical Abstracts Service Number). | |
| Q. | How to remove cyanoacrylate? | |
| Ans. |
Super Glue is renowned the world over for the strength of its bonds, its versatility of use, and easy application. Whether a hole needs a seal or a crack needs repairing, Super Glue is the first thing that craftspersons, hobbyists, and contractors use for all their construction or repair needs. Because Super Glue is so strong and bonds so fast, some people may find that they have accidentally glued two fingers together, or found that that small piece of balsa wood or plastic from a model they were building has completely bonded to their skin! Not to worry, for even though Super Glue is incredibly strong, it has one weakness: acetone. Acetone is often found in household nail polish remover, and a small amount on the end of a Q-tip or cotton swab applied directly to the glue should dissolve the bond without damaging the skin. Be very cautious in gently peeling the skin apart as in removing a bandage from the skin; pulling the skin apart may rip the skin! Read the label to make sure that the remover actually contains acetone, as more and more manufacturers are turning away from the chemical because of the growing popularity of acrylic nails (which are loosened by acetone). Be careful - straight acetone will discolor a number of fabrics and can mar the finish of laminated counter tops (mainly the darker colored ones). Straight Acetone defats the skin; wash with soap and water after use and apply hand lotion to replenish the skin and remove any dryness effects. Use acetone sparingly and cautiously with these tips in the following situations: • Clothing/Fabrics Use acetone and an old toothbrush, reapplying the acetone a number of times and brushing to remove it layer-by-layer. Work on outside and then on inside. May not come off entirely. • Counters, tables, floors, etc. Use acetone to soften glue and then start working at the glue. Brush, scrape, shave, peel, sand or whatever mechanical means is available to work the glue off. Reapply acetone and continue to work at the glue. • Glass Standard Super Glue is not recommended to be used for glass bonding applications. If bonded, soak in water until parts come apart. The best suggestion is to properly cover your work area with metal foil before use - and always work with Super Glue and other adhesives in a well-ventilated area! Should Super Glue bond to any body part where acetone should not be applied, such as the lips or eyes, the following steps will help you get out of any sticky situation! • Skin Immerse bonded areas in warm, soapy water. Peel or roll skin apart; a spatula or teaspoon handle or even a pencil will help. Remove cured adhesive with warm, soapy water (may take several applications). Fingernail polish remover with an acetone base has also been successful for removal of cured adhesive from skin. • Lips If lips are accidentally stuck together, apply a generous amount of warm water and encourage maximum wetting and pressure from saliva from inside the mouth. Peel or roll (do not pull) lips apart. It is almost impossible to swallow the adhesive as a liquid. The adhesive solidifies upon contact with saliva (moisture) and could adhere to the inside of the mouth. Saliva will lift the adhesive in 1-2 days, avoid swallowing the adhesive after detachment. • Eyelid In the event that eyelids are stuck together or bonded to the eyeball, wash thoroughly with warm water and apply a gauze patch. The eye will open without further action within 1-4 days. To our knowledge there has never been a documented case of adhesive in the eye causing permanent damage. Do not try to force eyes open. • Eyeball The adhesive will attach itself to the eye protein and will disassociate from it over time, usually within several hours. Periods of weeping and double vision may be experienced until clearance is achieved. Use of a warmed 3% sodium bicarbonate solution to wash eyes repeatedly may assist in aiding more rapid removal of the adhesive. WE SUGGEST THAT ALL INCIDENTS OF EYE EXPOSURE TO CYANOACRYLATE ADHESIVE (SUPER GLUE) BE DISCUSSED WITH A PHYSICIAN. |
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