How to Remove Dicor Lap Sealant

We were thrilled when we bought our Recreational Vehicle. We didn’t realize that there was a lot of maintenance involved. The question that bothered us the most was – how to remove dicor lap sealant?

I know you’ll be saying “Just google it!” Unfortunately, you couldn’t find a blog or a google in the past. After much testing and trying, we finally have a step by step guide that you can use to safely remove the dicor lap sealant.

How to Remove Dicor Lap Gelant?

The type of roof will determine the tools required to remove the dicor lap sealant. There are a few steps that can be used to remove dicor lap sealing from any type roof.

Material required

It is important to have all the materials necessary before we begin the process.

  • Old ragcloth
  • Acetone Or any type of cleaner
  • Hot air gun or hairdryer
  • Scraping tool
  • Gloves 


Step 1: Preparing

Gloves – although they are optional, I will suggest that you put on your gloves before you start since they protect you from any mess or skin injury while scraping and also because a pair of nice rubber gloves hurt nobody! 

Next, use acetone or other cleaning liquid to clean the area. Acetone can dry quickly so make sure to check the area before you move on to the next stage. 

We tried the sealant once without cleaning the area, but it didn’t work out well. Warning!

Step 2: Heat the dicor lase

It is important to remove the sealant gently, especially if it is a roof sealant. This will allow for easier removal and less scratching. 

Use a hairdryer/hot air gun. The heat should be hot enough for the dicor lap to melt, but not too hot. Keep the heat at low.

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Heat a small area first, then work in batches. Then move on to step 3.

Step 3: Scrape it!

Once the dicor lap sealing agent is warm and soft, you can use a scraping instrument that is suitable for the surface.

Start by inserting your scraping tool along the sides. Next, work your way inwards. The scraping instrument will lift the sealant upwards. Next, remove the patch and continue with step 2.

Continue to repeat steps 2 and 3, until all dicor lap sealant is removed.

Step 4: Final cleaning

After you have removed all sealant, some residue may remain. Apply acetone to the old rag cloth to complete the process.

What is Dicor Lap Sealant?

After we have learned how to remove Dicor lap-sealant, I want to tell you what dicor lap-sealant is before I share the tips.  Dicor lap sealant is, as the name implies, a silicone-based adhesive. sealant It is a secondary or mechanical seal that is placed over the roof edges, ventilation pipes, and other areas. It is used on RV roofs to seal any gaps created during fittings. This prevents leakage and insect entry. It can also be used to prevent dust, sound, heat, and other unwanted elements.

It can be used with different membrane types, such as polyvinyl chloride (PVC), ethylene propylene monomer (EPDM), and polyvinyl diene monomer(EPDM) membranes, along with aluminum or fiber. Although eternabond can be used to seal the same area, we prefer an actual sealant. 

Tips and Tricks on How to Remove Dicor Lap sealant

You must take every precaution to avoid causing damage to your roof. RV and later complain we didn’t mention, so read the next few tips carefully. 

  • Use the hairdryer/hot air gun with caution. Don’t overdo it. 
  • You need to choose the right scraping tools for the type of surface. You will scratch the surface if the scraping tool you use isn’t correct. Rubber surfaces require extra caution.
  • Some prefer to make incisions over the dicor lap sealingant. However, we don’t like making incisions as they cause more mess.
  • To store all your waste, use a container. 
  • The dicor lap sealant cure period is approximately one month. This means that it takes about a month for it to harden. To get the best protection, the dicor lap sealant must be allowed to cure properly.
  • How do you remove the Dicor Lap sealant? – Choose a sunny day. As you may have read, heat aids the process. So, choose a sunny day.
  • RV roofs are quite high up. Workers should be careful, especially if they are near the edges. A fall from the roof could cause serious injuries or even death.
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    When is it time to change the Dicor Lap Sealant

    There were times when we thought that we needed to change the lap sealant. It is therefore important to understand when the sealant should be changed. 

  • Cracks, holes or bubbles
  • Check The current sealant. The sealant should be changed if there are cracks, bubbles or holes. If there is only a tiny hairline crack, you can apply a coat Dicor lap sealant to cover it. It is important to inspect the sealant contact area with the surface. If it has become loose, you should change the sealant.

  • Use your finger to press the sealant! 
  • Before you change the Dicor lap sealingant, it is important that you know whether it is in good or poor condition. You can look at the sealant and see if it has any cracks. However, to verify that the Dicor lap sealant remains in good condition, you should press the sealant gently with your finger. If the sealant forms a small indentation when it is pressed lightly, it is good.

  • Check The lap sealants are changed every six months.
  • Sealants can last for many years. However, it is important to inspect the sealant every six month. Any issue such as exposure to high heat may damage the sealant – better be safe than sorry!

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  • It is a good idea to change the sealant every 2 years.
  • Dicor lap sealants are durable and can last many years. We have seen RV owners that do not change their sealant every five years. After experiencing the consequences, we made the same mistake once more. However, we decided to replace the sealant every two-years. Haven’t faced any issue with leaky roofs since then.

  • Heat exposure
  • As we have discussed in step 2, heat can help to loosen the sealant. It can be helpful when we need to remove the lap-sealant. It is not the best idea when the RV’s in use. It is crucial to inspect the lap sealant after it has been exposed to high heat to ensure that there is no breakage or loosening.

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    Why Dicor Lap Sealant

    We have tried many different lap sealants over time, but our favorite is the Dicor. Both the self-leveling and non-self-leveling sealants have worked well and we have never had any issues.

    The RV sticks to the surface if it is well cleaned. It can be used on its own without the need for any additional products. Make sure you have removed the old sealant completely before applying a new one.  


    What are the different types of dicor sealant available?

    There are three types:

    • Non-Leveling Lap Sealants
    • Self-Leveling Sealant For OEMs
    • Non-Leveling Ultra Sealant.

    What type of sealant should I use?

    Your needs will determine the type of sealant you choose. Both non-leveling and self-leveling lap sealants work well.

    How long does it take for the dicor lap sealant cure?

    The cure time for dicor lap sealant is one-month.

    Do you have any instructions on how to use dicor lase?

    Yes, dicor lam sealants come with instructions. You can view the instructions on their site.

    Can you paint Dicor lap sealant?

    It is okay to paint over Dicor lap-sealant, but it is important to dry the sealant completely.

    Final Thoughts

    The answer to ‘How to remove Dicor lap sealant’ is pretty straightforward. The sealant should be heated just enough to soften it, then it can be removed. To ensure that the sealant does not cause any damage to the RV or surfaces we have applied it to, please follow the steps in this blog.

    There are many scraping tools available for different surfaces. Make sure you choose the right tool. Be mindful while removing the sealant so that you don’t end up making abstract art of scratches of your beloved RV!

    We will be happy to hear your thoughts

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