“Size” is the adhesive material applied to the surface that makes the copper leaf stick to it. There are two options available – water-based or oil-based size. Oil-based size is the most traditional choice. Quick-dry oil size reaches tack (the required “stickiness” to adhere the copper leaf) in about two hours. It is meant to be used for small projects or whenever you have a limited time frame to work within. Slow-set oil size will reach tack in ten to twelve hours. It is intended for larger projects that require a lot of work time.  Water-based size is an alternative to the more typical oil-based size. It comes to tack within twenty minutes, and remains workable for about thirty hours.  Water-based size is not burnishable. If you plan to burnish the surface, use oil-based size. Adhesive size goes on wet. Use a paint brush to apply the size carefully to the surface. Even application is desirable for best results. Use the paint brush to work the size to an even coat as you spread it over the surface. Make sure you cover all areas that you want to gild. Copper leaf will not stick to a surface that does not have size on it. Once applied, you must give the size the proper amount of time to reach tack before applying the copper leaf. Tack times vary based on which kind of size you use. Following the correct tack time procedure will greatly affect the final look of your project. For the most professional looking results, read and follow the tack time instructions precisely. Gently run the back of your knuckle over a small area of the surface. Listen for a squeak sound, which indicates tackiness has been reached. If the size is still too wet to apply the copper leaf, it will come off on your skin. When it’s ready, it will feel sticky but will not come off on your skin. Monitor the size carefully and test the tack every half hour until it has been reached.  Once the size becomes too dry, you will have missed your opportunity to apply the copper leaf. It must be applied to a surface with proper tack. If you live in a very warm or dry environment, keep in mind that tack time may be reduced.
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One-sentence summary -- Choose the right size for your project. Apply the adhesive size. Allow time for tack to develop. Test the tack.

Q: This exercise should only be tried when you are flexible. You may need to follow a regime of improving your flexibility first, otherwise you will find this exercise next to impossible.  You can do this by jogging, doing jumping jacks or running on the spot for at least 10 minutes.  Extend your right leg straight out in front of you. Gently stretch for 10 seconds. Switch over to do the same with your left leg. Stretch for 10 seconds. At this point, you may find that it isn't happening as well as you'd like. That's fine––take all the time you need and keep working on this step until you get it. Put both hands in the middle of your legs, and lean down. Stretch for 15 seconds. Your legs should form a butterfly shape. Do this gently. Lean to the right for 20 seconds, then lean to the left for 20 seconds. Have them above your head and keep them up for 30 seconds. You can choose to stop here if wished, as your legs are now over your head. Or, you can go one further with the next step. When you have achieved this, then try to bring back your left leg as well. At this point, realize that this is exceptionally hard to do, so do not push it. It can take a very long time to do this successfully, perhaps even a year or two before it works for you. The second foot is harder to do than the first, because you have to get it beyond the first. Whichever leg is less flexible, do first.
A: Work on your flexibility. Place a mat on the floor where you intend to practice this exercise. Warm up your muscles first. Stand up and stretch for 15 seconds. Sit down on the floor mat. Put both your legs straight out. Put both of your hands on your toes and stretch for 15 seconds. Separate both legs as widely as you can. Bring both of your legs together. Bounce both of your legs up and down for 20 seconds. Bring both legs out straight. Point your legs straight up in the air. Try to bring your right leg back and over your head.

Article: Mold typically grows in well-saturated areas. Basements, bathrooms, kitchens, and garages are commonly invaded by black mold. If you suspect mold in your building, start looking in the rooms that hold the most water. Even if an area is not normally water-prone, a leak can lead to mold. Leaky water pipes are often culprits, but you can have other sources of water, too. If your air conditioner is not properly drained and insulated, it can leak water. This can result in black mold around the leak. Porous materials such as grout are often used to join two slabs or panels. For example, kitchen and bathroom tiles often have grout between them. If water frequently gets into the pores in the grout, black mold can grow there. Sealants can also be prone to growing black mold. Sealants are often used in high moisture areas (e.g. around your shower). Because of this, black mold can set up and grown on a sealant, such as calk. Black mold naturally grows on materials containing cellulose. These are plant based materials such as paper, cardboard, and wood. Keep a close eye on any paneling or file cabinets that get wet. Any wood, drywall, carpet, or cloth can easily grow black mold under moist conditions.
Question: What is a summary of what this article is about?
Seek out naturally damp areas. Inspect any leaks. Look at joints. Check any seals. Watch materials high in cellulose.

Article: This will help you decide what to keep and what to throw away while packing. You will also want to think about other factors such as the weather and where you’ll be living — for example, if you know that you’ll be moving around a lot, or that you’ll live in small spaces, you might want to consider digitizing your CDs, DVDs, and Blu-rays so that you’re not lugging those around with you. An e-reader is a space-friendly alternative to books.  Once you’ve figured out what you want to bring with you, decide whether you wish to sell, store, or donate the rest. Note that storage fees can add up, so if there’s something you simply can’t get rid of it might be worth shipping it to Mexico. If you choose to ship some of your items, look for quotes from shipping companies at home and in Mexico to get the best price. (Be sure to look at reviews for each company, too, before deciding on one!) Things like art and furniture can be brought into Mexico duty-free as long as they were bought at least six months before entry, but you cannot bring in live predator fish, dead fish of any kind, and certain drugs, including medical marijuana.  FM3 visa holders have the one-time option to import $5,000 USD worth of personal household items into Mexico duty-free for a $100 USD fee. If you decide to take advantage of this, you’ll need to ensure that you clearly mark each box and provide the Mexican consulate with a list of everything you are shipping, including serial numbers of electronics. Unless you're from America, if you’re planning to bring electrical appliances, the electrical voltage requirements may not work for most of the larger appliances. Lower-voltage items, such as MP3 players, will typically adjust. If you are coming from Europe, it is best to sell them and purchase ones once you arrive. This can save you on moving costs. If you have cats or dogs, they will need health checks and signed certificates of their health by a veterinary professional, dated within five days of crossing the border. The certificate will also need to show that your pets have received their rabies vaccinations. Your local Mexican consulate will be able to inform you further.  Birds are more difficult to travel with as they require both paperwork and lengthy quarantine periods that can cost a minimum of $600 USD. If you have any other types of animals that you hope to bring with you, consult embassy/government sites for specific details.
Question: What is a summary of what this article is about?
Think about what you want to do while living in Mexico. Be aware of what you can take into Mexico. Ensure that your pets have the appropriate documentation.