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Waterproof Putty for Holes and Gaps, Wall Hole Filler and Crack Filler, Flame Resistant Waterproof Sealant for Windows

Waterproof Putty for Holes and Gaps, Wall Hole Filler and Crack Filler, Flame Resistant Waterproof Sealant for Windows

Fixed in 10 minutes
No tools needed
Holds up indoors and out
Repairs that blend in
Seals gaps, holes and cracks
$49.99 $64.99 Save $15.00 (23%)

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Description

Waterproof Putty, Wall Hole Filler and Crack Filler, Flame Resistant Waterproof Sealant for Windows

  • Gaps that need tools to fix: the putty is malleable by hand and adjusts to any gap, hole or crack without tools
  • Urgent repairs that drag on: it sets in about 10 minutes into a rapid, durable seal
  • Moisture and heat creeping in: this waterproof sealant shields against moisture and heat, inside and out
  • A different product for every surface: one hole filler works on wood, metal, concrete, masonry, pipes and walls
  • Patches that stand out: a smooth, seamless finish integrates neatly into the surrounding area after curing

A gap around a window, a crack in a wall or a hole where an air conditioning pipe passes through is a repair that cannot wait. Mold this waterproof putty by hand, press it into the area and it sets into a solid, waterproof seal in around 10 minutes, with no tools necessary. It is compact and easy to store for quick fixes and unexpected repairs.

Waterproof Putty for Holes and Gaps, Flame Resistant Waterproof Sealant for Windows – image 9

Use it as a gap filler for windows and doors, for wall repair, to fill holes in wall surfaces and to seal cracks. Once it cures, it integrates seamlessly into the existing surface. Keep it away from children.

Why choose Mubso
Waterproof Sealing Putty
Feature Mubso Others
Moldable by hand, no tools needed ✓ ✕
Sets into a solid seal in 10 minutes ✓ Slower
Waterproof and flame resistant seal ✓ Varies
Works on wood, metal, concrete, masonry ✓ Varies
Smooth, seamless finish after curing ✓ Visible seams

Key Features

What this sealing putty offers:

  • Malleable By Hand: It adjusts to any gap, hole or crack and needs no tools.
  • Sets In About 10 Minutes: The putty forms a rapid, durable seal for urgent repairs.
  • Waterproof And Flame Resistant: Moisture and heat are held back both indoors and outdoors.
  • Multiple Surfaces: The putty bonds with wood, metal, concrete, masonry, pipes and walls.
  • Smooth Seamless Finish: After curing it integrates neatly into surrounding areas.
  • Compact Storage: The small putty is easy to store.
Waterproof Putty for Holes and Gaps, Wall Hole Filler and Crack Filler – image 10

Specifications

  • Material: Sealing putty compound
  • Drying time: Approximately 10 minutes
  • Scope of delivery: 1 x Waterproof sealing putty
  • Notes: Moldable by hand, no tools necessary. Waterproof and flame resistant. Suitable for indoor and outdoor use. Keep away from children.

Package Includes:

  • 1 x Waterproof sealing putty

How to Use

  • Mold the putty by hand.
  • Press it into the area you want to fill.
  • Wait around 10 minutes while it sets into a solid, waterproof seal.

Applications

Around the house, use this sealing putty to patch air conditioning pipe penetrations, seal gaps in windows and doors, or fix cracks in walls. It is a versatile tool for maintenance enthusiasts and anyone who needs quick solutions to everyday problems.

Right for you if
  • ✓You have a gap around a window or door — it fills holes, cracks and gaps without tools
  • ✓You need an urgent repair — sets in about 10 minutes into a solid, waterproof seal
  • ✓Your repair meets pipes or walls — compatible with wood, metal, concrete, masonry, pipes and walls
  • ✓You work indoors and outdoors — waterproof, flame resistant, suitable for indoor and outdoor use

If two or more of these sound like you, this is the one.

FAQs

Q: How long does the waterproof putty take to set?
A: It sets into a solid, waterproof seal in around 10 minutes.

Q: Do I need tools to use this hole filler?
A: No, the putty is moldable by hand, so you mold it, press it into the area and let it set.

Q: Can I use it outdoors?
A: Yes, it is waterproof and flame resistant and suitable for indoor and outdoor use.

Q: Which surfaces does the crack filler work on?
A: It works on wood, metal, concrete, masonry, pipes and walls.

Q: Is there anything to watch out for?
A: Keep the putty away from children. The package contains 1 x Waterproof sealing putty.

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Frequently Asked Questions

When will I receive my order?

Orders are usually processed within 1–3 business days (Monday to Friday) after your payment is confirmed.
Once dispatched, delivery generally takes 8–16 business days (Monday to Friday), depending on where you are.
Estimated Delivery Time = Processing Time + Transit Time

How much is shipping?

Standard shipping is free on every order, with no minimum purchase. The price you see at checkout is the final price; there are no extra or hidden shipping charges.

How can I track my order?

As soon as your order is dispatched, you receive a confirmation email containing your tracking information. Please allow 48–72 hours after shipment for tracking updates to appear, particularly during busy periods.
You can check on your order at any time through our Track Your Order page.

What is your return policy?

You have a 30-day return window, counted from the day your order is delivered.
To qualify for a return, items must be:
unused
in their original condition
returned in the original packaging (where possible)
complete with every included part and accessory

How do I start a return?

To begin a return, email our support team at support@mubso.com.
In your message, please include:
your order number
the reason for the return
clear photos (if the item is damaged, defective, or incorrect)
Once we have your request, our team reviews the details and sends you the appropriate return instructions.

When will I receive my refund?

Once your returned item has been received and inspected, approved refunds are processed within 7 business days.
Please note that, depending on your bank or payment provider, it may take extra time for the refunded amount to show in your account.