yes
ANS 2 Dry fibreglass is lighter than acrylic. Formed to a shape, with it's resin, it's nearly 50% heavier than acrylic.
Fiberglass is lighter, AND stronger.
cast iron, steal, and fiberglass tubs.
Fiberglass shingles are lighter and thiner with there base being made out of fiberglass. The fiberglass shingles will cost more but wear better.
Metal baths (enamel on steel or cast iron) retain more heat than their acrylic or fiberglass versions
There is a lot of differences between PVC and Fiberglass. Fiberglass is going to be stronger and PVC is the plastic tubing that you find in local home repair stores. PVC tubing is cheaper than fiberglass. Fiberglass tubing is lighter in weight. PVC tubing can be bent when heat is applied, but fiberglass tubing is fixed and will break, not bend.
Depends on the type of wood you are comparing the acrylic to. Woods have different densities depending on water content (ie kiln dry woods, etc...). Acrylics are polymer based products that are custom designed and depending on its strength, can be lighter than most natural woods or just as heavy.
If you have city water (decent city water that is) a fiberglass unit with typical warranties of approx. 6 years, will do you just fine. Acrylic is best for places with well water and have typical warranties of about 10 years. The difference is that acrylic fiberglass is solid throughout, whereas what is known as a fiberglass unit has what is essentially a spray coating of acrylic on the surface. Thus the solid acrylic fiberglass units are "tougher" It is recommended for either unit to use something like car wax (on the walls ONLY, never the floor, unless you use non-slip mats) to protect the unit, at least once a month.
Fiberglass tanks are a later development to the traditional concrete tanks, and many people now see them as a superior product. They are much lighter so transporting them to your location is simpler and being lighter weight means it will take less effort to install. Despite being lighter, fiber glass is actually stronger than concrete and because there are no pores in fiberglass it means that they are not prone to attack by sewer gases that can cause the concrete tanks to deteriorate. This means a fiberglass tank should last longer than a concrete tank.
Fiberglass can be a bit more durable then aluminum or steel. It is also much easier to work with and looks a lot better then the others. Fiberglass grates tend to be lighter than metal grates and may offer a better load capacity depending on the type of grate. They are inherently lighter as the material is designed to be lightweight whereas aluminum and steel grates are selected for their durability and reliability.
A fiberglass column is much lighter and stronger in comparison to other other materials. You can read more at www.kastenmarine.com/alumVSsteel.htm
A fiberglass column would be lighter and would withstand the weathering a wood column would. Also fiberglass is not susceptible to termites nor do they need to be sealed as wood would.
resin and fiberglass are kindda hard to compare cuz there for different levels of experience most beginners start on resin but fiberglass is lighter which helps u go for longer runs but it is a little bit harder to control