Coal tar is a thick, dark liquid that is a byproduct of coal processing. It has been used for various purposes due to its unique properties, particularly in the production of coal tar-based products. Here's a primer on coal tar-based products:

Pipe wrapping is an essential process in the oil and gas industry, as well as other industries that utilize steel pipelines to transport fluids. It helps extend the service life of the pipelines and reduces the risk of leaks and failures caused by corrosion or external damage.

Epoxy injection grouting is a technique used for repairing and strengthening concrete structures. It involves injecting epoxy resin into cracks, voids, and damaged areas within the concrete to restore its structural integrity. Epoxy injection grouting is commonly used in various applications, such as repairing cracks in concrete walls, beams, columns, and floors, as well as anchoring bolts, dowels, and reinforcing bars.

An expansive aqua reactive water barrier grouting system is a specialized construction technique used to create watertight barriers in structures such as dams, tunnels, underground utilities, and foundations. This system employs grout, a fluid material consisting of cement, water, and additives, which is injected into the desired area to form a waterproof seal.

The term "APP membrane mineral finish" is not a specific product or concept that I am familiar with in my training data. However, I can provide some information based on my general knowledge of construction materials and terminology.