How To Repair Your Bedliner

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The following actions should be taken when spraying a new bedliner over an existing old or cracked truck bedliner. This method was designed to spray over an existing 100% solid polyurethane or polyurea sprayed on coating with a comparable or equaling 100% solids polyurethane or polyurea spray-on coating. While we have focused on recoating truck beds, these steps may also be used to spray over aged or weathered coatings such as floors, decks, containment units, trailers, marine, commercial and industrial applications.

STEP 1 Respray
Thoroughly scrub all surfaces of the spray on bedliner, removing all traces of contamination, i.e., oil, grease, dirt, etc…

Brush the entire bedliner with TSP (Tri-Sodium Phosphate) in a hot a water solvent. A stiff brush will help with stubborn areas. Immediately clean washed areas with clean water. Do not allow cleaners to dry on the surface of the existing bedliner.

Repeat the cleansing procedures as required to insure complete elimination of all contaminates. Aged truck bedliners may require more than one cleaning to effectively remove all contaminants.

STEP 2 Respray
Thoroughly wipe the old sprayed bedliner. If any precipitation is left in the cracks or seams you will run into foaming and blistering predicaments. Be sure to pay special consideration to any marred areas in the liner that may be lifting or peeling where moisture may hide (remove all areas of the liner that have lifted or peeled).

STEP 3 Respray
Bevel all edges of the existing bedliner, this will help to hide the old bedliner and leave nice clean points on the new bed liner. Conceal all areas that don’t need to be sprayed. Be sure to mask a 1/8” to 1/4” inch past the edge of the old bedliner to hide the old spray on liner and guarantee a good bond at the edge of the new liner.

STEP 4 Respray
The existing truck bedliner will need to be sanded or grit blasted to remove any oxidation and roughen the exterior of the aged liner, this will give good adhesion for the new liner to the old liner. (Wear appropriate safety equipment)

Any degraded areas within the old spray on liner will need to be feathered out otherwise the sides of the damaged area will manifest in the new truck box liner.

STEP 5Respray Step 1Respray Step 1
Use compressed air or a vacuum cleaner to remove the dust and debris from the surface of the entire truck box liner.

To provide proper adhesion to the aged spray on truck bed liner, wipe the surface with MEK (Methyl Ethyl Ketone).

The surface can then be coated with our Bonding Agent, this will provide a good bond between the old and new liners. Bonding Agent is a easy to use single component product that can be applied by brush, roller or a standard automotive paint gun (Prior to use shake container or stir for one to two minutes). A thin coat of bonding agent is all that is needed. Please allow 30-45 minutes for the bonding agent to cure.

STEP 6 Respray
You are now able to spray a new truck bedliner over an existing old and/or damaged spray on truck bedliner.

This article cannot encompass all safety concerns; each user should follow correct procedures described in the manufacturer’s equipment manual and understand the requirements for safe operation. Also be sure to read chemical manufacturer’s advice and material MSDS to know specific risks and forethoughts related to the chemicals.

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