Alpha Systems - 1021 Low Voc Self-Leveling Lap Sealant, Gray (10.3 Oz. Tube)

Alpha SystemsSKU: 862147
Added to catalog: March 27, 2025
Last product update: June 4, 2026 at 8:27 PM

Sale price$24.09 Regular price$34.97
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FREE Delivery Estimate June 14 – June 19
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1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

Gray
Seal Your RV's Roof Worries Away with Alpha Systems Self-Leveling Lap Sealant
Seal out leaks and protect your RV with Alpha Systems 1021 Low VOC Self-Leveling Lap Sealant in gray. Specially designed for flat, horizontal surfaces, this durable, weather-resistant formula adheres to rubber, metal, and fiberglass roofs and remains flexible to handle vibrations and travel. Its self-leveling, paintable finish ensures a watertight seal that lasts, keeping your RV interior dry and comfortable.
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  • Cross-reference Part #: N102103TLCI
  • COMPATIBILITY — Great for flat, horizontal surfaces on your RV like your rooftop and around roof structures
  • MADE TO PERFORM — Helps prevent water and air from leaking into your RV's interior
  • RELIABLY DESIGNED — Once completely cured, this sealant is formulated to withstand rigors and vibrations of RV travel
  • CUSTOMIZATION — Available in Beige, Gray, Almond and White to match your RV's aesthetic
  • ALPHA — Alpha Systems provides a holistic lineup of tapes, sealants, adhesives and cleaners all formulated for your RV

When it's time to repair your RV's roof, trust the name the pros use! The Alpha Systems 1021 self-leveling lap sealant is perfect for sealing horizontal, flat areas of your RV, like your rooftop and around roof structures like vents, antennas, skylights and more. This is is a self-leveling sealant that is designed to work on flat, horizontal surfaces of your RV and can withstand the elements and wear and tear of travel. It has excellent adhesion to rubber, metal or fiberglass RV roofs. Plus, once it’s fully cured, it can hold up against the shock, vibrations, and stress of outdoor transportation. All so you can travel without worrying about a leaking roof.

The 1021 self-leveling lap sealant comes in a single tube and is available in white, beige, gray or almond color options.

  • Available colors: white, gray, black, beige or almond
  • Great for RV roofs, vents, antennas, skylights and more
  • Engineered to withstand all weather conditions
  • Self-leveling for horizontal surfaces
  • Helps prevent air and moisture intrusion
  • Paintable once cured
  • Low VOC formula
  • Coverage: ¼” bead covers approx. 30'
100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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