How to Repair a Plastic Grill

Plastic Grill Repair Case Study

There are a number of testimonials that I can use to affirm that our patented Polymer Bonding Process works incredibly well on grills. Many of these stories actually came before our patented Polymer Bonding Process (Process) was finalized in 2016. Prior to the Process, Tech-Bond was already the best adhesive system for the repair of plastic grills. The Process takes that repair to a whole new level. Broken plastic grills, torn bumper covers, broken tabs are all common problems where the Process is far and away the best solution for repairing these plastic items. Automotive enthusiasts, especially DIYers, love the Process.

Damaged bumpers and grills
Broken and damaged bumpers and grills

Steps for repairing a broken plastic grill

A broken plastic grill is the easiest plastic repair on a car. Because they are a hard plastic, most broken grill pieces will fit back flush. A flush fit is one of the keys to the Process. Two things two mention concerning a repaired plastic grill.
1) In most cases the repair will not be noticed. Al that will be visible is a hairline crack.
2) Repaired plastic grills will handle all normal wear and tear.

Video on the Process

We do n0t yet have a video on repairing plastic grills, but the steps for repairing a broken grill are the same as repairing a torn number cover, a broken trim piece or tab. Instruction come with every Poly Kit. but the steps are listed below.
1) Make sure all edges of the break(s) are clean and free of any grease or oil.
2) Practice putting pieces into place. This step is necessary because the grab will be extremely quick. When the grab occurs, you will have to rebreak the grill.
3) Saturate ALL edges with our Poly Prep. Emphasize saturate. Let the Poly Prep dry. About 15 to 30 seconds.
4) Spray the Activator/Accelerator (AA) on the edges of the grill that is on the car, i.e., the fixed destination. Let the AA.
5) Warm ALL edges till they are very warm. By feel, just below hot. By temperature, about 120 degrees F.
6) Apply the SI adhesive to the edges to the broken pieces. When working with edges and small parts, our thicker SI Black will be easier to use.
7) Align twice and press once. Grab will occur by six to eight seconds.
8) Visually inspect

If there are small cracks, we can recommend using a SI adhesive with the Filler. You can fill that crack by spreading a thin layer of adhesive into the crack and sprinkling the Filler on. Repeat thin layer by thin layer as necessary. LAST coat is thinly spreading the SI adhesive then spraying the adhesive with the the lightest spray of Activator/Accelerator that you can apply. Surface temperature will reach about 170 degrees F. Since the repair is a rigid piece(s) firmly attached to a rigid grill, the repair is incredibly strong. All surfaces will accept paint.

Video on the steps to repair a broken grill

The video shows the repair of a rigid bumper cover. which is a more difficult repair than repairing a plastic grill. Steps of the Process are the same. In four years, we have not had a complaint. Our feedback comes in the form of a phone call telling us how awesome the Process is. We also have our money back guarantee for the skeptics out there. Ergo, there is not any risk in trying the Process.

Choose your kit

You will need either a Poly Kit, a Deluxe Kit or a Professional Poly Kit to repair a broken grill. With each category, you can choose the volume of products that you will recieve.
Poly Kits give you:
An SI Structural Adhesive
Our standard Activator/Accelerator (AA)
The Poly Prep (PP), an adhesion promoter for polymers
Deluxe Kit
Adds the Filler to the SI Structural Adhesive, AA and PP.
Professional Kit
Adds the Debonder to the SI Structural Adhesive, AA, PP and Filler
Click the button below to buy the appropriate kit.

Video Library

Our video library can be very helpful when faced with a difficult task. Click on the button below to go our Video Library.

Video Library
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