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Yichuhaoxi RV Silicone Self Leveling Lap Sealant, One Quarter Gallon

Yichuhaoxi RV Silicone Self Leveling Lap Sealant, One Quarter Gallon

Last price we saw

$97.48at Lowe's, last seen Nov 2

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Our take on the Yichuhaoxi RV Silicone Self Leveling Lap Sealant, One Quarter Gallon

This one-quarter gallon sealant is a pourable silicone formula designed specifically for horizontal RV roof surfaces. It flows into gaps and around vents to create a waterproof, UV-resistant barrier that remains flexible in extreme temperatures. At $29.99 at Amazon as of May 22, it offers a bulk alternative to standard 10-ounce tubes for larger maintenance projects.

Best forResealing RV roof vents and skylightsLarge-scale horizontal seam repairsOwners of rubber, TPO, or fiberglass roofsPreventing water intrusion during storage
Pros
  • Self-leveling formula creates a smooth, professional finish
  • High UV resistance prevents cracking and yellowing
  • Stays flexible to withstand road vibrations
  • Quarter-gallon size covers more area than single tubes
  • Strong adhesion to common RV roofing materials
Cons
  • Cannot be used on vertical surfaces due to flow
  • Requires thorough surface cleaning for proper bond
  • Longer cure time compared to non-silicone patches

Yichuhaoxi RV Silicone Self Leveling Lap Sealant, One Quarter Gallon prices at every store

  • Lowe'sCheck price at Lowe's

Yichuhaoxi RV Silicone Self Leveling Lap Sealant, One Quarter Gallon price history

Lowest price we've seen: $97.48 on Nov 2 at Lowe's. Tracked across 1 store since Nov 2.

What reviewers say

Users appreciate the ease of application for flat surfaces, noting it effectively seals leaks that traditional caulk might miss. Some find the larger container more economical for full roof reseals.

Pros
  • Excellent flow into tight crevices
  • Durable waterproof seal
  • Easy to pour and spread
  • Good value for the volume
Cons
  • Messy if over-applied
  • Difficult to remove once fully cured
  • Limited shelf life once opened

Specifications

Use
Roof
Formula
Silicone
Caulk
Yes

Questions and answers

Can I use this on the side of my RV?
No, this is a self-leveling sealant designed to flow and flatten out. If applied to a vertical surface, it will run down the side before it has a chance to cure.
Is it compatible with TPO and EPDM roofs?
Yes, silicone-based lap sealants are generally compatible with TPO, EPDM, and fiberglass RV roofs. Always clean the area with a specialized roof cleaner or denatured alcohol first.
How long does it take to dry?
It typically skins over within 30 to 60 minutes. However, a full cure can take 24 to 48 hours depending on the humidity and temperature.
Do I need a caulk gun for this?
No, this quarter-gallon container is designed for pouring or applying with a putty knife. It is thinner than standard tube caulk to allow it to level itself.

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