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Dicor Self-Leveling Lap Sealant vs Geocel ProFlex RV Sealant

Buy Dicor Self-Leveling Lap Sealant for horizontal RV roof work on EPDM, TPO, rubber, metal, fiberglass or wood. Buy Geocel ProFlex RV Sealant for vertical seams, edges and joints on fiberglass, aluminum, steel, wood or glass, where you need a non-sag bead that sticks to damp surfaces. On price, Dicor is $17.95 at Veurink's RV Center as of November 3, 2026; no price was given for ProFlex here.

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Dicor
Dicor Self-Leveling Lap Sealant

Dicor Self-Leveling Lap Sealant

4.5· 64 ratings

Choose the Dicor Lap Sealant if you are sealing a flat RV roof around vents, pipes, AC units or screw heads and want a self-leveling bead that flows out smooth on EPDM or TPO.

Pros
  • Self-leveling formula spreads into a smooth, flat bead on horizontal roof surfaces.
  • Works on EPDM, TPO, rubber, metal, fiberglass, aluminum and wood.
  • UV-stabilized to resist deterioration and discoloration.
  • Stays flexible after curing.
  • 10.3 oz tube covers slightly more than a 10 oz tube.
    • Cons
    • Not for vertical or sloped seams; it will run.
    • Only comes in ivory.
    • Needs a clean, dry surface before application.
    • Not rated for high joint movement like ProFlex.
    Geocel
    Geocel ProFlex RV Sealant

    Geocel ProFlex RV Sealant

    4.5· 19 ratings

    Choose the Geocel ProFlex RV Sealant if you are sealing vertical seams or joints on fiberglass, aluminum, steel or wood and need a flexible bead that grips damp or slightly oily surfaces.

    Pros
    • Non-sag bead holds on vertical seams and joints.
    • Bonds to damp, slightly oily or frozen surfaces.
    • Excellent expansion and contraction for RV joint movement.
    • Can take weather right after application.
    • Six color options, including clear and black.
    Cons
    • Do not use on TPO or EPDM roofs.
    • Do not use on traffic-bearing surfaces.
    • Do not use on acrylic skylight glazing or Styrofoam.
    • Requires a caulk gun.
    • No price was given for this listing.

    What separates them

    Dicor Self-Leveling Lap SealantGeocel ProFlex RV Sealant
    Roof and surface compatibilityEPDM, TPO, rubber, metal, fiberglass, aluminum, woodFiberglass, aluminum, steel, wood, glass, vinyl; not for TPO or EPDM
    Bead behaviorSelf-leveling; flows flat on horizontal surfacesNon-sag; stays put on vertical and overhead joints
    Cure and weather exposureRemains flexible; UV-stabilizedCan be exposed to weather right after application
    Wet or dirty surface bondingSurface must be clean and dryBonds to damp, slightly oily or frozen surfaces
    Movement and expansionFlexible sealant, not rated for high joint movementExcellent expansion and contraction for joint movement and temperature swings
    Color choicesIvory onlyWhite, black, clear, almond, bright white, crystal clear
    Size10.3 fl oz tube10 fl oz tube
    Price$17.95 at Veurink's RV Center as of November 3, 2026No price given

    Price history

    • Dicor Self-Leveling Lap Sealant: lowest $9.34 on Nov 2 at RVupgrades.com.
    • Geocel ProFlex RV Sealant: lowest $16.40 on Nov 2 at Amazon.

    Prices at every store

    Dicor Self-Leveling Lap Sealant

    • AmazonCheck price at Amazon
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    Prices and history →

    Geocel ProFlex RV Sealant

    • AmazonCheck price at Amazon
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    • WalmartCheck price at Walmart
    Prices and history →

    Specs compared

    SpecDicor Self-Leveling Lap SealantGeocel ProFlex RV Sealant
    ColorIvoryWhite, Black, Clear, Almond, Bright White, Crys…
    Size10.3 fluid ounces10 fluid ounces
    TypeCrack / Crevice—
    UseRoof—
    FormulaRubber—
    multipack_quantity1—
    Roof Type—Any
    Application Type—Compression tube

    Questions and answers

    Which one should I use on an EPDM or TPO roof?
    Use Dicor Self-Leveling Lap Sealant. ProFlex RV Sealant is explicitly not for TPO or EPDM. Dicor is made for horizontal EPDM, TPO and rubber roof surfaces.
    Can I use Dicor on a vertical seam?
    No. Dicor is self-leveling and will run on vertical or sloped surfaces. Use Geocel ProFlex RV Sealant for vertical seams and joints.
    Which lasts longer?
    Both are flexible and weather-resistant, but Dicor is UV-stabilized for roof exposure and ProFlex is built for joint movement and immediate weather exposure. Match the product to the surface: Dicor on horizontal EPDM or TPO roofs, ProFlex on vertical fiberglass, metal or wood joints.
    Is ProFlex worth it over Dicor?
    They solve different jobs, so it is not a straight upgrade. ProFlex costs more per tube in most stores and gives you non-sag behavior, color choice and damp-surface bonding. Dicor is the right pick for flat roof sealing.
    Can ProFlex be applied in cold or wet conditions?
    ProFlex bonds to damp, slightly oily or frozen surfaces and can be exposed to weather right after application. Dicor needs a clean, dry surface, and the tube should be warmed to room temperature in cold weather.
    How much does each tube cover?
    Dicor comes in a 10.3 fl oz tube and ProFlex in a 10 fl oz tube. Coverage depends on bead size, but both are standard caulk-gun tubes for spot sealing rather than full roof coating.

    More comparisons

    • Dicor Self-Leveling Lap Sealant vs Camco Pro-Tec Self-Leveling RV Roof Sealant
    • Dicor Ultra Sealant System vs Dicor Self-Leveling Lap Sealant
    • Camco Pro-Tec Self-Leveling RV Roof Sealant vs Geocel ProFlex RV Sealant

    Buying guides that pick them

    • Best RV roof sealants for self-application