No, remove the old stuff, scrape it off with razor blade or similar then reapply
The address of the Mastic Peninsula Historical Society is: Box 333, Mastic, NY 11950-0333
IS 1195/1196 mastic with 25 mm thickness
There is little difference except mastic means 'from plant origins'.
Asbestos was last commonly used in mastic products in the 1980s. Since then, regulations and restrictions have been put in place to limit or ban the use of asbestos due to its health risks. It is important to take precautions when dealing with older mastic products to avoid exposure to asbestos fibers.
Mastic gum is mainly used for treating gastrointestinal ulcers, poor circulation, yeast infections, and breathing problems. Mastic gum seems to have little or no side effects for most people. Mastic is a part of a tree, so the only problem would be if you are allergic to certain trees, you may be allergic to Mastic Gum.
Mastic is an adhesive not a flooring some manufacturers say it can be used on floor tiles how ever I would not recommend using mastic on a floor as it would take forever to cure
There are many different types and brands of mastic, so these are generalizations of it. Mastic is a form of tile setting material. Unlike thinset, it has a tacky quality and is meant to be used on wall tile not being put in a highmoisture area like a steam room or shower floor. Mastic should never be used with natural stone, tile larger then 8"x8" unless white clay 8"x10" or some variation of it. If you read the directions on the mastic it may say it can be used on the floor with tile up to 12 x 12. The issue is that those tile must be smooth backed. Almost no commercially sold tile is smoothed backed. There for, mastic can almost never be used on the floor. The advantage of mastic is its tacky texture. This allows the wall tile to not slide on the wall while you are installing. It is also a smooth consistency and makes it easier to spread for a novice. It is also commonly used in craft projects where tile is being put to table tops or a vase.
It will often work on certain kinds of mastic. Worth a try.
No, asbestos containing mastic must be disposed of as construction waste.
"Mastic" is a very old word for a tree sap gum. Today the word mastic is used for any gum-based adhesive, even if the adhesive has no actual gum. Roofing mastic is a sticky fiber cement used to repair fiberglas and asphalt shingle roofs. It is generally used for temporary repairs unless it will be totally protected from sun damage. You can get it at any good building supply store. I don't see the word "mastic" on the labels of many of the products that are often called mastic by tradespeople.
Mastic is a gum or resin that comes from the bark of a Mediterranean tree. It is used for making varnish and flavoring chewing gum. Websites such as Wisegeek, or food 52 to find more information on mastic.
Most mastic used nowadays needs little preparation. I use various kinds of tile mastic and usually just stir them well to make sure any liquids are totally mixed in and an even paste is acheived.