Even after having the combined sturdiness of wood and steel, the look of fiberglass does fade. By using the best finish for exterior fiberglass door is the right product. You can refinish your fiberglass doors to make them look good as new, be it the door of your house, your car, or your office.

Editor's Pick

Name

Whisper Gray Exterior Gel Coat

Durable
Crack Free
Water-resistant

Things to consider

What door are you finishing?

  • Every door is different indeed. And every door requires a different kind of finishing.
  • If you are finishing a fiberglass door of your house, then the products you use might be in the range of the minimum $45 and a maximum of $700 or above, depending upon the quality of fiberglass you have.
  • If you want to finish a car door made of fiberglass, your products might cost you from $20 to $450, depending upon the model of car you have.

What climate does the door face?

  • You need to know the climate of your surroundings. A hot climate will affect the door in a different manner than a cold one.
  • Hot climate tends to heat up the fiberglass door. For that, you might want to try an insulating finish to bounce off the excess heat.
  • A cold climate will probably influence the doorknobs or frames of the house. So, having products accordingly will help.

The look you want

  • This is an important question you need to ask yourself before finishing your door.
  • Most people opt for a glossy finish, that looks good on a fiberglass door. But you also need to consider the fact that you can protect your door from side factors, as well as give it a good look at the same time.

An everlasting finish

  • One should always try to give his door a finishing that can last longer than just a couple of months. For that, you may want to spend some amount on the finishing products, that will be worth it for the next years.

Are you finishing or refinishing your fiberglass door?

  • There’s a difference between these two.
  • Finishing means you just got your door and are going to give it a finishing look for the first time. The products will vary accordingly.
  • Refinishing means that the finishing you’ve done before has worn out or faded away. For that, different kinds of products will be used.

Top 9 Best finish for exterior fiberglass door

ImageNameRatingCheck Price
1. Whisper Gray Exterior Gel Coat

☞ Durable
☞ Water-resistant
☞ Crack free
4.5Price on Amazon
2. Giani Wood look Paint Kit

☞ Water based acrylic
☞ Simple application
☞ Instant Curb Appeal
4,5Price on Amazon
3. Mahagony Stain kit

☞ Has all necessary items
☞ Instructional DVD
☞ Costly
4.4Price on Amazon
4. Marine UV Protectant Spray

☞ 303 UV protectant
☞ Trigger sprayer
☞ Dust repellent
4.4Price on Amazon
5. Pro-Luxe Door

☞ No forming of air bubbles
☞ Smooth
☞ Protects from UV Radiation
4.3Price on Amazon
6. Rust-Oleum Outdoor Gloss Finish

☞ Resists scratches
☞ Elegant design
☞ Elegant design
4.3Price on Amazon
7. Hardener for Super Gloss Coating

☞ Safe and odorless
☞ resilient to UV
☞ Easy to apply
4.2Price on Amazon
8. Flitz Fiberglass Polish Paste

☞ non-toxic
☞ Removes rust
☞ Costly
4.1Price on Amazon
9. Marine Varnishes

☞ VOC compliant finish
☞ 300 to 350 square feet
☞ UV light absorbers
4.0Price on Amazon

1. Whisper Gray Exterior Gel Coat

Price on Amazon

Features

  • Good quality of coat having a longer durability
  • It is tear, chemical and cracks resistant
  • Also resistant to water and osmosis
  • Provides the best stain for fiberglass door
  • It is 100% made in the United States
  • Gives your door a glossy look
  • Ideal to refinish a fiberglass door

This UV resistant Gel Coat is what you need if you want to protect your fiberglass door from the sunlight. Made up of UV resistant formulation and having MEKP as a catalyst, it can be used for marine applications as well. Being one of the best ways to paint a fiberglass door, it is crack, tear, chemical, water and osmosis resistant. Indeed, it may be called a good gel stain for fiberglass door. It is ideal for a finish coat for exterior fiberglass doors. It meets its price with all the different features it provides.

Customer Review

Those who have used this gel coat have considered it good. They are happy with the look it provides. Although might not be too effective against UV radiations, but still provides at least some comfort against the heat outside.

2. Giani Wood look Paint Kit

Price on Amazon

Features

  • Water based acrylic
  • A simple method of giving the best finishing look to your doors
  • Provides an instant curb appeal to your home in just three hours
  • Made in the United States
  • It is a simple two-step application
  • Has multiple options with different prices to choose from

This paint kit will provide best finish for exterior wood doors. From the simplest solid colors to the most flamboyant ones, this paint kit will help give your doors a wood looks in a single morning or afternoon. In just three hours, you’ll be able to give your exterior doors a finish that will resemble a smooth, embossed look in a door of about 180 square feet surface. The kit contains all that is necessary. What’s more, being the best paint, you won’t have to apply a primer prior to painting this one.

Thoughts of Customers

Those who have experienced, say that it is overall quite easy to paint your door and gives a beautiful look. The only problem some of the customers have faced is that the paint chips off in almost 5 months’ time and the paint kit is a bit expensive. But most of the customers are happy with the result they got.

3. Mahagony Stain kit

Price on Amazon

Features

  • It’s a full kit of all necessary items
  • Weighs 4 pounds
  • Comes with an instructional DVD
  • Ideal to stain a fiberglass door
  • Has been ranked among best sellers
  • Might be a bit costly

This easy to use paint kit from Mahagony includes: 1 foam brush, a pair of one sized gloves, 1 3 inches natural and 1 2 inches synthetic brush, 1 staining and 2 cleaning rags, a bottle of mineral spirits, a can of stain, 2 stir sticks and a can topcoat, it also comes with an instructional DVD that makes it easy to use. Considering it a whole kit, it may be the best paint for exterior fiberglass door. Because it contains everything you would need for fiberglass exterior doors, it bangs the buck in the bank.

What Customers have said

Many customers were satisfied after using this paint kit to have a best finish exterior fiberglass doors. Some have said that it may take more than a day to fully finish a door with this kit, but the results are good so it doesn’t matter that much. Some others have also found the kit a bit too costly. The top coat finishes off from semi-gloss to a matte finish.

4. Marine UV Protectant Spray

Price on Amazon

Features

  • The 303 UV protectant formula brightens up the surface of your door
  • Gives your fiberglass door a new look for a longer period
  • Repels dust and stains causing the door to look tidy
  • The matte finish has no odor
  • Comes with a trigger sprayer in a 16 fl. oz bottle
  • Has a longer life span
  • Made in the United States

This is quite a popular product and can be used on rubber, fiberglass, leather and what not. The UV rays cannot fade or crack a fiberglass door on which this has been sprayed. This spray can restore its color and it also repels dirt from sticking onto your fiberglass door. This non-toxic spray provides a matte finish to exterior fiberglass doors. Coming in a pack of 6, it definitely meets its price.

Experience of the Customers

Considering this fiberglass door review, there is not one drawback any customer has faced so far. They’ve tried it on house doors and boat doors only to be so satisfied that they intend to keep on using this spray in the future.

5. Pro-Luxe Door and Window finish

Price on Amazon

Features

  • Smooth and easy to apply
  • No forming of air bubbles
  • Easy to stain a fiberglass door and wooden walls
  • May take some time to dry, especially in winters
  • Application making requires care
  • Contains gloss and satin
  • Has excellent micro porosity and flexibility
  • Is a clear type

This hassle-less free stain that will be easy on your budget and effective, will give your fiberglass door a clear finish and several other plus outcomes. This window finish is made of Alkyd high solids that gives the stain a better resilience. It also contains UV absorbing ingredients that protect your fiberglass doors from UV radiations, causing the color to remain unchanged. Considering its performance, it is the best way to stain a fiberglass door.

Customer’s Thoughts

Almost all the customers that have used this product absolutely loved it. It gives wooden and fiberglass doors a sanding touch. Little care must be done not to drip and pool the paint but that is obvious for such products. Otherwise, it dries nicely and has a fantastic effect if used with the right brush.

6. Rust-Oleum Outdoor Gloss Finish

Price on Amazon

Features

  • Provides a clear gloss finish
  • Elegant design
  • Resists scratches
  • Dries up really fast
  • Comes with UV absorbers

This outdoor, crystal clear gloss comes with UV absorbers offering unbeatable protection against unsteady elements. Featuring a clear non-yellowing finish that resists scratches, it may be the best finish for exterior fiberglass door. Drying up extra fast, it has a very low odor that can also be cleaned up with water. The formula isn’t hard to mix and easy to apply.

Customer’s Point of Views

Customers have considered this a very good finish for exterior fiberglass doors. Some decorative people were also part of the group that claimed it to be worth every penny. It dries up really fast and cleans smoothly as well.

7. Hardener for Super Gloss Coating

Price on Amazon

Features

  • Provides crystal clear coating
  • Can be used to obtain a stained fiberglass front door
  • It is resilient to UV, scratches and water
  • Is a best stain for fiberglass door
  • Safe and odorless
  • Good to gel stain fiberglass door
  • Very easy to apply

This proxy for super glass coating provides a flawlessly clear fiberglass door. The one-part resin and one-part hardener can be used to refinish fiberglass door in a worktime of 30-35 minutes. It is durable and resilient and contains UV and moisture protection to provide a perfect stained fiberglass door.

Customer Reviews

Putting aside the regular paints and gel coats, this gloss coating has provided customers with extraordinary results. Other than just having to give a glossy refinish fiberglass door, it also hardens the coat under it, providing protection against any harmful element lurking in the atmosphere.

8. Flitz Fiberglass Polish Paste

Price on Amazon

Features

  • Has a cream formula
  • Is non-toxic
  • Safe for polishing and making neat fiberglass doors
  • Removes rust, oxidation, tarnish, water stains etc. from the door it is used on
  • Can be used on any other thing than a door
  • Is costly

A concentrated cream that is considered one of the best stains for fiberglass doors, it is second to none. Being faster and easier, this polish paste is used on many surfaces other than fiberglass. Use it as a primer for fiberglass door, or an ending polish is up to you, but this paste helps in finishing or refinishing your door to a nice look. It is a non-toxic product authorized by the USDA.

Experiences Words

This product surprised many when it removed burnt stains from a fiberglass door. One gallon only has proven to be extraordinary and provided marvelous results to the customers. The finish it provides Is shiny, and is a good way to refinish fiberglass door.

9. Marine Varnishes

Price on Amazon

Features
  • Comes in a gloss or a satin finish
  • It is a high solid, VOC compliant finish
  • Every gallon covers about 300 to 350 square feet
  • Designed mainly for exterior surfaces
  • Prevents salt, air and water from damaging the surface
  • UV light absorbers help to keep the surface beautiful

These three marine spar varnishes is a high-build urethane coating for exterior of wood and fiberglass doors. It is an awesome product if you want to give a durable finish to your door. It contains UV absorbers, that make your door beautiful for a long period, even with constant exposure of strong sunlight. It will not be destroyed by scratching, or by cleaning using a solvents or cleaners.

What customers have said

This spar varnish has by far crossed many varnishing products that are used in many aspects of finishing fiberglass doors. It is the best finisher for fiberglass door and surface can be re-stained after use.

Conclusion

Good products usually come with a name, and a name usually comes with a price. But by spending some amount in the start to finish the exterior of a fiberglass door, you may save up that amount later by never having to refinish your door ever again. Make your decision wisely, after reading about these 9 products that will surely help you understand better.

FAQs

What is the best finish for fiberglass exterior door?

If you ask me, I’d say the best finish for your fiberglass exterior door would be a protective coat of gel that would cover up your door against scratches and other damageable objects. For that, Whisper Gray might be a good choice.

How do you finish a fiberglass door?

Be sure to apply gel stain and clear finish according to the directions to finish your fiberglass door. For better results, apply the stain in the direction of the grain.

What kind of stain do you use on a fiberglass door?

Consider using high quality, heavily pigmented, oil-based stain, or a gel stain. Stir the stain until you get a creamy texture.

What kind of paint to use on fiberglass door?

Acrylic paints in gloss or satin finish would be a good choice. The Rohm and Haas paint Quality institute has a good taste in these things.

Can fiberglass doors be painted?

Yes, they can and are advised to be painted and finished with a wood grain finish.

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Author Silvia Jonas

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