try junkyspot.com it's pretty good. I got couple of my dolls from there.
A poly vinyl acetal resin prepared by reacting poly(vinyl alcohol) or poly(vinyl acetate) with an aldehyde such as formaldehyde or butyraldehyde.
There the same thing. Vinyl siding is a PVC plastic resin siding.
Vinyl is a synthetic resin material. It can be made strong enough for home siding, or thin and pliable enough for car seats and tops.
shellac
It depends on the resin; most exhibit a Young's modulus between 100,000 and 1,000,000 psi at room temperature.
Different liquids weigh different ammounts. You have to be specific about the resin you are interested in. Find the manufacturer and contact them. Water weighs 8.33 pounds per gallon. Your resin will weigh more.
There are different types of plastics named polystone, resin, vinyl, PVC and ABS.
Polyvinyl chloride PVC = polyvinyl chloride, a synthetic resin preparedd by the polymerization of vinyl chloride
Vinyl-Synthetic resin or plastic consisting of polyvinyl chloride or a related polymer Leather-A material made from the skin of an animal by tanning or a similar process. from google definitions leather is better than vinyl as it is a real material as they are more stronger that the synthetic one.
Vinyl was first invented in 1920 by scientists who wanted to develop a material that would help to manufacture everyday products that were easier to make, more durable, and cheaper than what was available. Today, Vinyl has become the second largest manufactured and sold plastic resin in the entire world.
Fibre-shelkote distributes vinyl ester resin which is required for underwater usage. Polyester resin is chemically similar to 2 part epoxy, and is much less expensive, but should never be used underwater.
A propriatory epoxy resin. Check out your hardware/do it yourself store.