Calvana 5200 Marine Sealant 2-Pack White 310ml — Fast-Cure, Waterproof & UV-Resistant Adhesive for Boats and RVs

Calvana 5200 Marine Sealant is a professional-grade, permanently flexible adhesive designed to form watertight, UV-resistant bonds above and below the waterline.

This two-pack of 310ml white cartridges supplies a heavy-duty, long-lasting sealant engineered for demanding marine and RV applications. Formulated to adhere to fiberglass, gelcoat, wood and metal, it’s intended for bedding hardware, sealing fittings and repairing hulls where a permanent, waterproof bond is required. Each tube includes a ready-to-use applicator nozzle and nitrile gloves to help keep jobs tidy and precise.

How quickly will Calvana 5200 set and cure?

This sealant develops a tack-free surface in about two hours and gains full waterproof strength within 24 hours under typical conditions. Cure speed can vary with temperature, humidity and bead thickness—warmer, more humid environments accelerate cure, cooler or thicker applications take longer.

• Tack-free in ≈ 2 hours under normal shop conditions
• Full functional waterproof cure ≈ 24 hours
• Faster in warm, humid conditions; slower in cold/dry environments
• Thickness and ventilation affect cure time

What materials and components does it bond to?

Calvana 5200 is formulated for strong adhesion to common boat and RV substrates including fiberglass, gelcoat, wood, aluminum and stainless steel. Its flexible, permanent bond is suitable for through-hull fittings, deck hardware, transducer installations and many repair tasks where a long-lasting seal is needed.

• Fiberglass and gelcoat — ideal for hull repairs and bedding
• Wood — effective for trim and structural sealing
• Metal (aluminum, stainless) — fastens hardware and fittings
• Also useful on many automotive and recreational vehicle surfaces

Is this product suitable for underwater or below-waterline use?

Yes — the formulation is designed to bond and cure even when submerged, making it appropriate for many below-waterline repairs and installations. For best results, follow surface preparation recommendations and allow appropriate cure time when conditions permit.

• Forms a permanent, waterproof bond underwater
• UV-resistant finish reduces yellowing and sun damage
• Ideal for through-hull fittings, strakes and keel attachments
• Use proper surface prep for strongest adhesion

What does the kit include and how do I apply it cleanly?

Each pack contains two 310ml white cartridges, pre-attached applicator nozzles and a pair of nitrile gloves to reduce mess. The nozzle allows controlled bead placement; smooth the bead with a compatible tool and allow the recommended cure time for a durable, finished bond.

• Two 310ml cartridges in white for wide coverage
• Pre-attached nozzles for accurate bead control
• Nitrile gloves included to protect hands and prevent contamination
• Tooling with a spatula or caulking tool yields professional finish

Who this product is for: Calvana 5200 is aimed at boat owners, marine mechanics, RV enthusiasts and professional installers who need a permanent, high-strength seal for critical joints and fittings. It's useful for anyone repairing hulls, bedding deck hardware, sealing transducers or making general marine and RV repairs where a long-lasting, waterproof bond is essential. If you require a flexible, UV-resistant adhesive that can handle harsh outdoor and submerged conditions, this two-pack provides ready-to-use cartridges with accessories for cleaner application and reliable results.