How to Clean Your LEER Fiberglass Truck Cap

Truck Cap Cleaning Supplies

• Mild automotive car-wash soap
• Clean bucket
• Soft microfiber wash mitt, sponge, or cloth
• Garden hose with a gentle spray nozzle
• Soft detailing brush for appropriate hard-to-reach areas
• Clean microfiber drying towels
• Compatible automotive wax or protective product, if appropriate

LEER Care Tip: If you're unsure whether a cleaner, wax, polish, or protectant is appropriate for your cap's finish, test it on a small inconspicuous area or consult your authorized LEER dealer before using it across the entire cap.

STEP 1

Rinse Away Loose Dirt

Begin by rinsing the entire truck cap with clean water. Removing loose dirt, dust, and debris before touching the surface helps reduce the chance of dragging abrasive particles across the paint while washing.

STEP 2

Wash With Mild Automotive Soap

Mix your automotive wash soap according to the manufacturer's directions.

Using a clean microfiber wash mitt, sponge, or cloth, gently wash the cap in sections. Starting toward the top and working downward can help prevent dirt from lower areas from being transferred back across cleaner surfaces.

STEP 3

Clean Hard-to-Reach Areas Carefully

Use a soft detailing brush or microfiber cloth where appropriate around trim, edges, and other areas that are difficult to reach with your wash mitt. Avoid aggressive scrubbing or stiff brushes on painted surfaces.

STEP 4

Rinse Thoroughly

Rinse the truck cap thoroughly with clean water, making sure soap residue is removed from the roof, windows, trim, and other surfaces.

STEP 5

Dry With Clean Microfiber Towels

Dry the cap with clean microfiber towels or another soft automotive drying material. Drying helps reduce water spots and gives you an opportunity to inspect the cap for remaining contaminants or areas that may need attention.

Have a newly installed cap? Follow the care instructions provided with your specific LEER product before waxing, polishing, or applying protective products to a new painted finish.

Wiping a Dirty Cap While Dry

Dragging dry dirt across the painted surface can create fine scratches. Rinse loose debris away before washing.

Using Household Cleaners

Use products designed for automotive exterior surfaces rather than assuming a household cleaner is safe for the cap's finish.

Using Abrasive Brushes or Pads

Stiff brushes, scouring pads, and abrasive materials can scratch or dull painted surfaces.

Letting Contaminants Sit Too Long

Bird droppings, tree sap, insects, and road contaminants are generally easier to address when removed promptly.

Using an Unknown Wax or Polish

Confirm that detailing products are compatible with the painted finish before applying them across the cap.

What should I use to clean a LEER fiberglass truck cap?

Use a mild automotive wash soap with clean, soft materials such as a microfiber wash mitt, sponge, or cloth. Avoid abrasive cleaners and stiff brushes on painted surfaces.

How often should I wash my fiberglass truck cap?

Cleaning frequency depends on driving and storage conditions. Washing every few weeks can be a useful starting point, with more frequent cleaning after exposure to road salt, heavy dust, coastal conditions, tree residue, or other contaminants.

Can I wax my LEER fiberglass truck cap?

A compatible automotive wax or protectant may be appropriate for a painted fiberglass cap. Follow the care instructions for your specific LEER product and confirm compatibility before using a new detailing product.

How do I remove tree sap or bird droppings from a truck cap?

Remove contaminants as soon as practical using a cleaner that is compatible with automotive painted surfaces. Avoid aggressive scrubbing and test unfamiliar products on a small inconspicuous area first.

Can I use a pressure washer on my fiberglass truck cap?

Use caution with high-pressure water, particularly around windows, seals, doors, trim, and other openings. A garden hose with a gentle spray is sufficient for routine cleaning.

How do I keep a fiberglass truck cap looking new?

Wash it regularly, remove contaminants promptly, use compatible paint-care products, keep windows and seals clean, and periodically inspect the cap for damage or wear.

LEER Truck Cap Maintenance Guide Learn how to care for the finish, seals, hardware, interior, and other components of your fiberglass truck cap. Truck Cap Accessories Guide Explore windows, windoors, lighting, roof racks, headliners, cargo organization, and other truck cap upgrades. Are Truck Caps Worth It? Explore how a truck cap can add cargo protection, storage, security, and versatility to your pickup.