MS-30RV Flex Repair Self-Leveling Lap Sealant – The Professional’s Choice for RV & Roof Sealing
CHEM PU MS-30RV is a high-performance, self-leveling lap sealant designed for long-lasting, flexible waterproofing in demanding mobile and architectural applications. Engineered for ease of use, durability, and environmental safety, it provides a clean, UV-stable, and permanent seal that moves with your structure—whether on the road or on the roof.
Why Choose MS-30RV?
✅ No Staining or Discoloration – stays clean on white and colored roofs
✅ Solvent-Free & Low Odor – safer for enclosed spaces and indoor air quality
✅ Long Shelf Life – 12 months when stored properly
✅ Meets Industry Standards – suitable for professional and DIY use
✅ Backed by CHEM PU Technical Support – datasheets, guides, and expert advice available
Primary Applications
🚐 Recreational Vehicles (RVs) & Trailers
Roof seams, edges, and lap joints
Vent, skylight, and pipe flashings
Sidewall and corner sealants
🏗️ Commercial & Architectural Roofing
Metal roof lap seams
EPDM and PVC membrane flashing
Screw head sealing and penetration details
🏭 Industrial & Transportation
Container and cargo sealants
Bus and coach roof sealing
Marine and vehicle body seam sealing
Product Overview
MS-30RV is a one-component, solvent-free, modified silane (MS) hybrid sealant that combines the flexibility of polyurethane with the weather resistance of silicone. It is specifically formulated for:
RV, caravan, and trailer roof & seam sealing
Metal, EPDM, PVC, and fiberglass roofing systems
Architectural lap joints, vents, pipe flashings, and screw heads
Ready to Seal with Confidence?
Whether you’re sealing an RV roof before a cross-country trip or maintaining a commercial roofing system—MS-30RV delivers reliable, flexible, and long-lasting performance.
📧 Contact us for technical support, samples, or to place an order.
A: MS-30RV is specially designed for RV and trailer roof sealing, metal roof laps, EPDM/PVC membrane flashing, and sealing around vents, pipes, and screw heads. It is also suitable for automotive, marine, and architectural lap joints.
A: Yes, MS-30RV can be applied in both wet and dry conditions, making it ideal for emergency repairs and maintenance in unpredictable weather.
A: No. MS-30RV is UV-stabilized and non-staining, and will not discolor EPDM, PVC, metal, or painted surfaces.
A: Remove old sealant, loose coatings, and debris. Clean with acetone or rubbing alcohol, and ensure the surface is dry and clean. Roughen smooth plastic surfaces for better adhesion.
A: – Skin-over time: 30 minutes
Tack-free: 2 hours
Paintable after: 24 hours
Full cure: 24–48 hours depending on temperature and humidity
