These are the five basic bathtub materials, each with a list of their characteristics.

Pros

Can be very affordableRelatively lightweightAvailable in standard sizes (60 x 30 inches) DurableEasy to clean 

Cons

The surface can chip when objects are droppedRust tends to form with even the smallest chipLimited options for color and shapeCan be noisy if not insulatedLoses heat quickly

Pros

LightweightAffordableAvailable in many colors, shapes, and sizes Durable Non-porous surfaceSurface is repairable

Cons

The surface can scratch if cleaned with abrasive cleanersStress points must be properly reinforced during installationAcrylic is more expensive than fiberglass

Pros

LightweightEasy to installVery inexpensiveEasy to clean and maintain The surface can be repairedA great option for a shower/tub combination

Cons

Not as durable as other materials The surface can crack and scratch Finish tends to fadeLimited color options

Pros

Very durableThick enamel is resistant to chipping and scratchingCan be resurfacedTimeless look Excellent heat retentionMany color choices available

Cons

Very heavy

Pros

Can be affordableMany color options Surface scratches can be buffed out Easy to cleanStain- and mildew-resistant

Cons

Can be brittleWearing of gel coat can lead to unrepairable cracks