Do Fiberglass Pools Scratch Easily?
Fiberglass pools have a hard, glossy gelcoat surface, but it is not scratch-proof. Here is what marks it, how to judge a mark, and what to do about one.
Short answer: A fiberglass pool can scratch. The gelcoat is hard and non-porous, but it is not scratch-proof. Latham’s own care manual says it can be scratched like any gloss surface, though most scratches stay superficial. Abrasive tools, metal and hard debris cause most marks. Deeper scratches need a qualified professional.
Can you scratch a fiberglass pool?
Yes. Latham describes its Crystite Gel Coat as resisting fading, stains and scratches. Resisting is not the same as immune to. Latham’s Use and Care Manual for fiberglass pools says plainly that the gelcoat finish “can be scratched, just like any other gloss surface.” It adds that the finish is seven to eight times thicker than a normal coat of paint, so scratches are not likely to be more than superficial.
Other sources are less relaxed. Some pool-chemistry and care guides say fiberglass can scratch fairly easily when the wrong object touches it. The sources agree on what causes damage. They differ on how worried you should be.
What actually scratches fiberglass pool gelcoat?
Most marks trace back to a short list of causes:
- Abrasive cleaning tools. Latham’s manual says not to use abrasive cleaners, steel wool, metal scrapers, wire brushes or metal tools, because they permanently damage the gelcoat finish.
- Stiff brushes and scouring pads. Fiberglass makers also warn against stiff bristles and abrasive pads. Latham’s guidance for fiberglass steps calls for a soft, non-abrasive sponge, and care guides recommend nylon or plastic bristles.
- Dragging hard objects. Metal, glass and other sharp items pulled across the surface can scratch it. A heavy object dropped in can chip or gouge the finish.
- Metal furniture feet and loose stones. Furniture with bare metal feet on a sun shelf, or rocks that get into the water, are commonly cited causes.
- Hard parts on equipment. Ladders, rails and automatic cleaners all touch the shell. Care guides advise using a cleaner designed for fiberglass.
Latham’s cleaning guidance also says to test a new cleaning tool in a hidden spot before using it where it shows.
How do you tell a surface mark from a deeper scratch?
Look at what is visible. One fiberglass pool maker describes a surface scratch as one that has not gone through the top layer. A deeper scratch exposes the white fiberglass layer under the gelcoat.
| What you see | What it likely means |
|---|---|
| A faint line in the gloss, same color as the pool | Probably superficial. Gelcoat is still covering it. |
| A white or different-colored line or patch | Possibly through the gelcoat. Have a professional look. |
| A chip or gouge with an edge | Impact damage. Have a professional look. |
| A very fine line that looks like a hair | Possibly a hairline crack rather than a scratch. Latham’s manual calls these not uncommon in gelcoat. Ask a professional to confirm. |
This table is a way to describe what you see, not a diagnosis. Photographs and a professional’s eyes are the reliable way to tell.
What should you do if your fiberglass pool gets scratched?
- Stop using whatever you think caused it. If it was a tool, set it aside.
- Clean the area gently with a soft sponge or cloth and a cleaner made for fiberglass pool surfaces. Do not scrub harder.
- Take clear photos in good light, and note where the mark is and when you noticed it.
- Contact the installer or the pool maker, or a qualified fiberglass pool professional.
Leave the repair itself to a professional. One fiberglass maker notes that fixing a deep scratch takes color-matched gelcoat and expert technique. Latham’s warranty also lists repairs made by anyone other than its authorized representative or an approved contractor among its exclusions. For other questions about structural damage and repairs, our fiberglass pool durability and repair guide goes further.
Does a warranty cover scratches?
Check the document for your own pool, because terms differ by manufacturer and by year. In Latham’s currently published Limited Lifetime Warranty, the surface finish is covered against osmotic blistering. The same document excludes changes to the appearance or texture of the surface finish other than blisters. It also excludes damage from accident, negligence, abuse or misuse, and damage resulting from added accessories such as rails and ladders.
That is one more reason to prevent scratches rather than plan to fix them. For wear of the gelcoat over many years, see our guide on how often a fiberglass pool needs re-gelcoating.
How do you prevent scratches?
- Brush with soft nylon bristles. Use a soft sponge for steps and ledges.
- Avoid abrasive cleaners, steel wool, wire brushes and metal tools of any kind.
- Choose an automatic cleaner and a pole head made for fiberglass, and check them for worn or rough edges.
- Keep stones, gravel and other hard debris out of the water. Skim and net regularly.
- Do not drag anything across the shell. Lift tools in and out.
- Put pads or rubber feet on furniture used near a sun shelf or steps.
- Keep glass out of the pool area.
Routine habits matter more than any single product. Our fiberglass pool care and maintenance guide covers the weekly routine.
Last reviewed October 2026 by Calm Water Pools.
Related guides
- Fiberglass pools FAQ
- How to maintain water balance in a fiberglass pool
- Fiberglass vs. concrete pools
Planning a fiberglass pool in Maryland, D.C., Northern Virginia or West Virginia? Request a consultation or call 240-372-4440.