Seal, Repair & Protect – Flex Paste Waterproof Putty (Black)
Take on any repair job with Flex Paste Waterproof Paintable Putty, the thick, rubberized sealant that stops leaks, fills cracks, and seals out air and moisture. Perfect for walls, RVs, roofs, concrete, and more, this versatile paste bonds to nearly any surface for long-lasting protection.
The half-quart size gives you plenty of coverage for indoor and outdoor projects. Once it cures, Flex Paste creates a durable, waterproof barrier that you can paint over for a seamless finish. Whether you’re fixing household damage or tackling professional jobs, Flex Paste makes repairs fast, easy, and reliable.
Why Choose Flex Paste?
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All-in-One Sealant: Fills, seals, and protects from water and air leaks.
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Paintable Formula: Finish repairs with your preferred paint color.
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Heavy-Duty Bond: Works on wood, concrete, metal, glass, and more.
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Waterproof & Weatherproof: Ideal for indoor or outdoor use.
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Thick, Flexible Paste: Won’t shrink or crack over time.
Wholesale Opportunities at UTN Wholesale
The Flex Paste Waterproof Putty/Sealant is a best-seller in the repair and DIY category, ideal for hardware stores, construction suppliers, and online retailers. With its trusted performance and versatile applications, it’s a fast-moving product available in bulk through UTN Wholesale at competitive prices.
FAQs
Can Flex Paste be painted?
Yes, once it fully cures, you can paint it to match any surface.
Is it waterproof?
Absolutely, Flex Paste creates a waterproof, weather-resistant seal.
What materials does it work on?
It adheres to wood, metal, concrete, PVC, tile, fiberglass, and more.
Can it be used outdoors?
Yes, it’s designed for both indoor and outdoor applications.
How long does it take to cure?
It typically skins over in 20–30 minutes and cures fully in 24–48 hours, depending on thickness.

Return & Refund Policy
All overpayments and refunds are automatically credited to the customers account with UTN Wholesale. Most customers prefer to keep the credit on their account and apply it to their next order. If you prefer to get reimbursed for any credit balance in your account, please notify your salesperson or contact our customer service department. If a payment was originally made by a credit card, then the refund will be directly credited to the same card. For all other methods of payment, a wire will be issued to the account listed on the record. Please allow 1 to 2 weeks for changes to apply and be reflected on your account. As far as cancellations or returns are concerned, we accompany them until orders are ready to be dispatched. Please note no returns and cancellations will be accompanies after the order has been dispatched. If you put up a return or cancellation request before we dispatch the goods, then there will be a restocking fee of 20% on invoice value. For groceries, the restocking fee is 40% of invoice value.
How To Order
Placing an order with UTN Wholesale is as easy as it can be. Just surf through a wide range of products listed on our website. Fill the 'Create an account' Google form, we will receive your details, will approve them and then email you your login details. You can login to your account using the provided details.After that, just click ‘add to cart’ and then place your order.
We also entertain your orders via email, WhatsApp & Google forms for special deals.
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