Some of the down sides to installing a fiberglass body kit on your car include the uniformity of the body kit itself, the time it takes to install the body kit and the cost of installation. Body kits that are made of fiberglass, unless they are carefully hand laid, can have wavy patterns on them that create less uniformity in the body kit's appearance. Fiberglass body kits require more work to install. There is more prep work involved, such as cutting, sanding, molding, etc, in order to get a fiberglass body kit installed on your vehicle. More work installing these fiberglass body kits also means more money. The amount of work that your autobody shop puts into the installation of your fibetglass body kit will end up costing you more money than it were install a urethane body kit. Fiberglass body kits are also more likely to crack and damage than urethane body kits. They are less resilient to the weather so they can not hold up as well as urethane body kits do.

Urethane body kits: Urethane is made of reaction injection molded polyurethane. Urethane body kits are typically stronger and have more endurance than fiberglass body kits. Urethane body kits are generally easier to install than fiberglass body kits. Because they do not require as much prep work to install, they are easier to install directly out of the box. Body kits that are made of urethane are stonger than body kits made of fiberglass because the material is more flexible. With normal everyday road conditions, urethane body kits will endure more minor bumps as compared to fiberglass body kits. The sturdiness of these body kits also make them more resilient to weather conditions. Lastly, urethane body kits will tend to have a "cleaner" look than fiberglass body kits. Due to the way that they are made, fiberglass body kits can have waves in the bumper. Urethane body kits, however, will not come with those waves since they are not hand made. Body kit pieces that are made with urethane are more uniform and are consistent from one end to the other.

Upon the initial purchase of a urethane body kit, you can expect to pay a significantly higher price than if you were to purchase that same body kit in fiberglass

Urethane body kits are made from injection molded polyurethane, which is a material that is quite light in weight, very flexible and highly resistant to extreme weather conditions and rough roads. Body kit parts made from urethane are normally quite easy to install because of their elasticity and light weight. There are numerous companies that manufacture different types of body kits for different cars using superior quality urethane.

Here are few of the differences between the Urethane body kits and fiberglass body kits, and their advantages and disadvantages.

The urethane body kits are quite flexible and will not crack on light impacts or by road bumps. They can easily withstand the harsh climatic conditions – hot or cold. They can easily be prepared before starting the painting process hence costing you less money at the body-shop. They are also quite easy to install as they have the similar flex to the shape of the various body parts.

The fiberglass body kits are not that flexible and can easily crack on slightest impacts and bumpy roads. The material is also not quite resilient to climate and can easily get damaged in harsh conditions. It costs more to prepare and paint the fiberglass body kits. They are not at all easy to install as they almost every time need some cutting and sanding down in order to fit the part accurately.

In conclusion, urethane body kits are more durable and suitable for the harsh climatic conditions and road tracks that are bumpy and rough. If you live in a region that experiences different weather across the year and doesn’t have smooth roads, then you should certainly install urethane body kit.

Polyurethane is a flexible material similar to most of the original bumpers on existing automobiles. Most urethane body kit parts tend to be more durable and forgiving than fiberglass, and fit similar to OEM parts due to the nature of the closed molding process during manufacturing. Urethane products are heavy compared to fiberglass body kits, and when damaged they are much harder to fix. However it is much harder to break a urethane body kit than a fiberglass body kit. If you were to hit a curb hard with a fiberglass part it would probably crack or break. If you hit the same curb with a urethane part it would probably flex with the curb and not break. Though urethane body kits are NOT indestructable, they are more forgiving. In general, urethane body kits are more expensive than fiberglass body kits. However, they are recommended for the individual that wants OEM specifications for fitment and durability.

Featuring:

OEM type fitment
More flexible than fiberglass
More durable than fiberglass

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