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Flex Paste bottle shows waterproof paintable putty for sealing gaps and cracks.
Flex Paste underwater application demonstrates sealing capability while submerged.
Flex Paste fills large gaps with a thick rubbery texture.
Flex Paste provides a durable rubberized barrier that can be painted.
Flex Paste fully paintable and UV resistant for outdoor projects.
Flex Paste suitable for foundations, roofs, RVs, and more.
Flex Paste made in the USA supports DIY and professional repairs.
Flex Paste for DIY and professional repairs across multiple projects.
Flex Paste bottle shows waterproof paintable putty for sealing gaps and cracks.
Flex Paste underwater application demonstrates sealing capability while submerged.
Flex Paste fills large gaps with a thick rubbery texture.
Flex Paste provides a durable rubberized barrier that can be painted.
Flex Paste fully paintable and UV resistant for outdoor projects.
Flex Paste suitable for foundations, roofs, RVs, and more.
Flex Paste made in the USA supports DIY and professional repairs.
Flex Paste for DIY and professional repairs across multiple projects.

Flex Paste Waterproof Paintable Putty – Seal Gaps & Water, UV Resistant, Made in USA (Quart)

Meet Flex Paste, a waterproof paintable putty designed to seal gaps, cracks, and joints across a wide range of surfaces—from...
Vendor: Flex Paste
$105.78
$105.78
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Subtotal: $105.78
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Free Shipping

We offer free standard shipping to every province and territory in Canada.

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Seasonal Shipping Delays to Outer Regions

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Flex Paste bottle shows waterproof paintable putty for sealing gaps and cracks.

Flex Paste Waterproof Paintable Putty – Seal Gaps & Water, UV Resistant, Made in USA (Quart)

$105.78
Flex Paste bottle shows waterproof paintable putty for sealing gaps and cracks.
Flex Paste underwater application demonstrates sealing capability while submerged.
Flex Paste fills large gaps with a thick rubbery texture.
Flex Paste provides a durable rubberized barrier that can be painted.
Flex Paste fully paintable and UV resistant for outdoor projects.
Flex Paste suitable for foundations, roofs, RVs, and more.
Flex Paste made in the USA supports DIY and professional repairs.
Flex Paste for DIY and professional repairs across multiple projects.

Flex Paste Waterproof Paintable Putty – Seal Gaps & Water, UV Resistant, Made in USA (Quart)

$105.78
Description
Description
x

Meet Flex Paste, a waterproof paintable putty designed to seal gaps, cracks, and joints across a wide range of surfaces—from drywall and plaster to concrete, roofs, and even mobile living spaces like RVs. The stay-fresh container blocks out air, locking in product integrity and reducing waste from exposure between uses.

Coat, Seal & Protect

Flex Paste penetrates deeply to seal air, water, and moisture. As it cures, it forms a strong, flexible, rubberized barrier that remains watertight and resilient as conditions change. When fully cured, you can paint it any color to blend with the surface, and it helps shield metal from rust and corrosion. It also delivers UV resistance for outdoor projects.

  • Deep sealing action reduces drafts and moisture intrusion
  • Flexible, rubberized finish resists cracking with movement

Underwater Use and Large-Area Filling

One standout capability is the ability to apply Flex Paste underwater and have it dry while submerged. The product’s thick rubber paste clings to surfaces and quickly fills large gaps, cracks, and holes, speeding up repairs in challenging spots.

  • Works underwater for challenging repairs
  • Thick paste targets wide gaps efficiently

Finish, Paintability & Protection

Fully paintable after complete cure, it accepts any color. The formulation helps prevent rust and corrosion and offers UV resistance for outdoor use, helping your project maintain its look over time.

Versatile Applications

Flex Paste is well suited for foundation and concrete repairs, sealing out pests, baths and showers, and both indoor and outdoor projects. It shines on roofs, RVs, autos, marine surfaces, lawns, and hobby or DIY tasks. Made in the USA, it supports both DIY enthusiasts and professionals.

How to Use Flex Paste

Prep the area, ensure it is clean. Cut the nozzle for your desired bead size and apply with a putty knife, pressing firmly to fill gaps. Smooth the surface and allow full cure before painting or sealing again.

  • Prepare surface and apply evenly
  • Let cure fully before topcoating
  • Store in the stay-fresh container between uses

FAQ

Q: What surfaces can Flex Paste seal?

A: It bonds to walls, drywall, concrete, EPDM, roofs, and many common materials.

Q: Can Flex Paste be painted after it cures?

A: Yes. Once fully cured, it accepts paint in any color to match your project.

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Shipping & Return
Shipping & Return
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Shipping (Canada)

We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.

We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.

Returns (30 Days)

We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.

To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.

Refunds

Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.

Order Tracking

When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.

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