Final answer:
Rubber cement is a good mounter because it is highly resilient, waterproof, and allows for a flexible bond, making it ideal for a variety of applications, including arts and crafts and textile products.
Step-by-step explanation:
Rubber cement is considered a good mounter due to its unique properties derived from natural rubber. Natural rubber exhibits a large stretch ratio, high resilience, and is extremely waterproof, which are desirable attributes in adhesives used for mounting purposes. Products that use natural rubber, such as rubber cement, can create a flexible yet strong bond that is resistant to water and can endure strain without breaking.
Applications where these properties are essential include items like clinging food wrap, fibers for textiles, carpets, upholstery, and various items in arts and crafts. Moreover, rubber cement is repositionable for a short time after application, making it forgiving to use in projects that require precision, such as the creation of stiff, clear plastic sheets or in demos similar to those seen with Silly Putty or Ghostbusters.