How to Seal LED Light Bar

How to Seal LED Light Bar

Condensation is a natural condition in which it affects the efficiency of our headlights. Although it does not give any significant defect in our car’s headlight, it may still affect its overall performance. Condensation is being compared to water ingress, where leakage may contribute to a system failure.

Sealing the LED light bars properly can do wonders for you and your vehicle. It helps minimize the condensation and water ingress your car may sustain. Water ingress and condensation is the common reason why sealing the LED light bar is a must. Once you found out that there is a condensation, you must fix it right away to avoid any possible damages. 

In the article below, we’ve listed ways on how to seal your LED light bar to prevent condensation and water ingress. Learn about these steps so that you’ll be able to know what to do if such a thing happens. 

Steps in Sealing

While condensation is not a severe issue, it could still cause damages to your car’s LED light bars. Fortunately, there is a solution to this like the sealing. These are the steps on how to seal LED light bars.

Step 1. Carefully remove the cover or the housing from the car first. You need to be cautious to avoid any damages and hairline cracks. If there’s water inside, pour the water out to go on with the condensation removal. 

Step 2. Place the housing in a place with good airflow using an air hose or a dryer. This is to allow the condensation to evaporate. Take note, and you should never leave the housing under the sunlight because the process can take up to 5 hours. Of course, it all depends on the weather condition. 

Step 3. When you see the gradual process of the moisture leave the headlights or the condensation is gone, you can carefully check the housing for any cracks. Then fill the syringe with silicone caulk to seal any cracks you see in the headlight. 

Step 4. See to it if there are any cracks or cuts in the headline. If there are, use the silicone in the syringe to seal them. Moreover, there are any open sockets, see to it to cap them. You can use duct tape, aside from silicone to cover them. 

Step 5. This is the final stage, wherein the sealing is done. You can now return the housing into its place carefully. Again, always check if there are cracks again, for you to seal before returning the housing cover. 


The sealing of LED light bars can be complicated sometimes. One of the reasons why sealing is made, it’s because of the possible cracks or improperly sealed housing, while water condensation is being removed. 

With the instructions and steps mentioned above, you already have an idea on how to seal your LED light bars properly. You must do it as early as possible to avoid worse damages in the future. And remember, to take extra care when sealing because light bars can be delicate sometimes. 

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