The best way is to use a heat gun to soften the glue under the lino and lift with a scraper or similar tool.Only work small area at a time as glue can harden again before you get a chance to lift it.You can also use a spade to chip away at it,depending you dont mind minor damage to surface;ie,surface to be re-covered.No easy way on this task.
Yes, if the adhesive is smooth, no lumps and if you use a compatible glue, not thinset cement
you can but it will break up fast,your better off getting a floor scraper and remove your old flooring.but with doing that you may have to level your floor(lumps left from glue will make an even floor impossible).go to your local hardware store and ask for a self leveling cement premixed ready to go.
Hot hide glue mixed with 10% glycerin for flexibility.
Yes and no. If the old linleum is peeling and seems loose then I would pull it up. If however the old linoleum is still in good shape and isn't peeling then yes, but steps must be taken. if it's on a cement floor then you need to coat the floor with a bonding agent or use a higher performing modified thinset. If the linoleum is on a wood subfloor I'd just staple metal lath right over the linoleum and tile it. I would use a bonding agent that most specialized tile stores sell. since there are so many just go to a tile store near you and ask them what they have.
Linoleum was first made from linseed oil (linoxyn) with either wood or cork dust, and then is backed with canvas or burlap. In around 1940 linoleum started to be made from polyvinyl chloride (PVC), however in recent years because of some of the harmful effects of polyvinyl chloride, there has been a return to the old style linoleum.
you have to put more glue on it, it will glue itself to the old glue, and be easier to remove
As long as the only linoleum is not peeling or loose go ahead and put the new one right on top of it this way you avoid the risk of asbestos and all the mess of riping up the old floor.
Vinyl and linoleum are not the same. Vinyl is an artificial product. Linoleum is natural. One of the biggest differences is that linoleum is much more durable. The pattern for linoleum goes all the way through so it lasts longer. The pattern for vinyl is printed on the top so once it wears off, your floor looks old. Most flooring sheets these days are vinyl sheets.
Good old-fashioned Elmer's glue is white.
spunk
You should scrape the old glue off if you expect a flat surface.
Basically it means something that's no longer any use. In past times, old horses (nags) were slaughtered, and their carcases sent to the glue factory, as that's all they were deemed good for.