








🛠️ Seal your adventure with confidence—flexible, fast, and flawless!
Geocel 28100V Pro Flex RV Flexible Sealant is a 10 oz clear, waterproof sealant designed specifically for RVs. It offers immediate weather resistance, exceptional flexibility to handle joint movement and temperature changes, and bonds to a wide range of materials including aluminum, glass, steel, wood, fiberglass, and vinyl—even on damp or slightly oily surfaces. The product is crack, mildew, and UV resistant, paintable, and comes in a resealable cartridge with a non-stringing formula for easy, precise application. Trusted by professionals since 1974, it’s the go-to sealant for durable, clean, and reliable RV repairs.













| ASIN | B001FC98X2 |
| Best Sellers Rank | #3,539 in Automotive ( See Top 100 in Automotive ) #5 in RV Sealants |
| Brand | Geocel |
| Color | Clear |
| Date First Available | July 9, 2010 |
| Global Trade Identification Number | 00079239281009 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 10 ounces |
| Item dimensions L x W x H | 2 x 2 x 11.38 inches |
| Item model number | GC28100 |
| Manufacturer | Geocel |
| Material | Plastic |
| Number of Items | 1 |
| Product Dimensions | 2 x 2 x 11.38 inches |
| Style | Resealable |
| Surface Recommendation | Window |
| UPC | 079239281009 |
| Unit Count | 10.0 Ounce |
| Water Resistance Level | Waterproof |
A**Y
Perfect for RV Sink & Shower Repairs
We used this sealant on our RV’s kitchen sink and in the shower when we installed new faucet turners and a new shower head, and it worked perfectly. It’s easy to apply, flexible, and creates a solid, clean seal that feels really secure. So far everything has held up great with no leaks or issues. For RV repairs and small plumbing updates, this stuff really gets the job done. Definitely a reliable product to keep on hand.
U**Y
Great new packaging.
Great product and wonderful tube upgrade. Plastic tube has a removable screw tip with a precut small opening. This worked great for the small gaps I resealed. Tip cleaned out easily with mineral spirits. I sealed the tube with three layers of plastic wrap and lightly replaced the tip. We will see if it stores well, but punching a cured plug out will be easy with the tip removed. Thank You for the improvements.
S**N
Maintenance is key
I buy this for my RV. Shipping is always fast and it's always packaged well. I am a repeat customer and have had no problems with the product at all. I will also add that I don't run into any of the issues that some people have posted about. It goes on very simply and takes a few days to cure. It seals the seams as intended. Just like with any equipment maintenance is key.
A**S
A Necessity for RV's
Overall a very good sealant for an RV. I purchased this product due to it being a flexible sealant that will endure the flexing of an RV as it travels down the highway. This sealant is more difficult to apply than regular silicone products. Here are some tips for application: When you cut the tip, only cut the opening as wide as the bead size you need. Wear gloves and have a cleaning solvent and rag ready for cleanup. I found that even when properly resealing the cartridge, the sealant dries inside the tube and it's a pain to get it unclogged. For performance this product gets five stars, but to be fair, I had to knock off one star because of the usability issues I mentioned. Although not a perfect five star score, this product is a necessity due to its ability to flex after drying. I highly recommend the product on any RV.
S**S
Specific product for your high $ RV
Great product, that is very specific to an RV application. Do your research and get the best product for your application. This is not a silicone, and is compatible with most exterior RV fiberglass and hardware applications. Fast shipping too.
P**R
The Best Product On the Market
This is an excellent product. It performs as advertised. I could not have found a better product. Worth every penny. I very highly recommend this product and will be purchasing more. I had never caulked anything before. The company was able to tell me exactly what to do and how long it could take to fully cure. I chose the clear so my amature efforts wouldn't show without a closer look. It was much easier than I thought it would be. I did learn that because of the Florida humidity it could take 10 days to fully cure. It took, roughly, 18 hours to cure enough not to be tacky. For those living in dryer climates it will take less time. Since this is a flexible caulk it will feel rubbery to the touch even when fully cured. While some may complain it takes too long to fully cure, remember that as soon as it has cured enough to no longer be tacky it is sealing out water. To those who complain it takes too long to cure in high humidity environments, be impatient as impatience is how simple jobs very often become major undertakings.
C**S
Great stuff
Works great. Easy to tool. Good thickness. Stays clear. Has held solid for about a year. Great price. Will be buying more as needed.
T**A
Great Product
Used this product to caulk the seams of a camper. First time doing this or any caulking at all except for caulking an old window once. I'm a girl who does not look forward to this type of work, but this product was fairly easy to apply and seems to have done a good job. I like the fact that this product is clear and that you can apply it over itself if repairs need done later, rather than having to remove all the old caulk. Looks neat too, which is very important to me.
G**Y
Non silicone - Top notch for the RV rig. Pricey but performance is well above other similar products.
M**T
Très bien
A**R
This is a very good product - I ordered one and it went along way. It’s a little messy if you have never caulked before, but I was fine with it. I have 25 foot RV and one tube did all the seams. I would recommend this product.
M**R
Seems like a really great product covers well and easy to use, we will see how my camper fairs outside over the winter.
M**Y
Très facile à utiliser
Trustpilot
1 week ago
2 months ago