The paper on the exterior of drywall made in 1977, or the spackling compounds use to bridge the space between two pieces of drywall, may contain asbestos, or it may not. The only way to know for sure is to have a sample collected by a person who is qualified to do that, and have it analyzed by a lab that is qualified and experienced in asbestos analysis.
Potentially, it could contain asbestos, without analysis, it should be assumed to contain asbestos
No, there is no asbestos in modern drywall
Some concrete shingles did contain asbestos. Many shingles never were made with asbestos.
No. Rockwool is made from melted rock and does not contain asbestos.
No, crayons are made of wax.
Gypsum insulation made prior to the 1970s included asbestos as a means of providing increased physical strength and insulation capacity to the product. Gypsum insulation made after the 1980s generally did not contain asbestos.
Mineral wool is made from melted rock and did not contain asbestos. It was a less effective, but less costly, alternative to asbestos containing products.
The materials door steps are made of do not usually contain asbestos, but they could in some cases. If you suspect asbestos is present, have a sample collected by a qualified person and analyzed by a qualified laboratory.
Older cement board may contain asbestos, and then it is properly called "asbestos cement board." Cement board more recently manufactured should not contain asbestos. The only way to know whether a particular cement board does or does not contain asbestos is to ask the manufacturer (if you know who made it) or have a sample collected from it by a qualified sampling technician and have the sample analyzed by a qualified laboratory.
Yes. Most brake pads made contain asbestos; even to this day they still use it.
No. Rock wool is made from rock that has been melted and then forced through small holes to make long, fibrous strands. It does not contain any asbestos. Even if the rock used in the beginning did contain asbestos (and that kind of rock is not used for this) the asbestos fibers would be melted and destroyed in the manufacturing process.
No. Owens Corning Fiberglas insulation was made with Fiberglas providing the fibrous functions in place of asbestos.
If the Hardiflex was manufactured before 1982 then the answer is yes. Anything made after 1982 should be fine.
It is possible that pre-1960 Georgia Pacific blackboard material may contain asbestos, as asbestos was commonly used in building materials during that time period. It is recommended to have the material tested for asbestos by a professional before any disturbances or removal activities to ensure safety.