I think probably not - it doesn’t say it’s non-toxic, but it does say to keep it out of the reach of children.

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M-D Building Products Replaceable Caulk Cord Weatherseal: Quick and Effective Solution for Sealing Small Gaps, Cracks, and Protecting Against Drafts and Moisture (71548) (Gray) (90 ft)

M-D Building Products Replaceable Caulk Cord Weatherseal: Quick and Effective Solution for Sealing Small Gaps, Cracks, and Protecting Against Drafts and Moisture (71548) (Gray) (90 ft)

Q: Is this product paintable (with latex paint)?

You can paint this, but you should plan on touching it up from time to time, as it is flexible.

Q: Can this be used as a backer on trim, with regular Big Stretch caulk on top for more permenance?

I suppose you could do that. You’d have to make sure it’s lodged in there good. I can’t help but think there is a better way, but you don’t know until you try it. ? The material is clay like but doesn’t dry out. I reuse it every fall by reshaping it to fit in gaps in windows.

Q: Can thisbe applied to a surface that is slightly wet? Like can it be put around a window if the window is weeping condensation?

You can try but I’m not sure that if window sill is wet it will adhere properly. If however it is applied when dry and then window forms condensation the water will roll off.

4.2/5

Product ID: 12338194

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📏90 ft length for extensive coverage

🌬️Blocks drafts & moisture effectively

🛠️Tool-free, quick application

Description

🛡️ Seal smart, live cozy — don’t let drafts crash your vibe!

EFFORTLESS INSTALLATION - No tools needed—tear to length and apply in seconds for instant comfort.
ENERGY EFFICIENCY BOOST - Stops air leaks to reduce energy waste and lower your utility bills.
WINTER PROOF YOUR SPACE - Temporary yet durable seal keeps cold drafts and moisture out all season long.
SEAL EVERY GAP EVERY TIME - Flexible 0.25-inch thick cord molds to any crack or crevice for airtight protection.
INDOOR OUTDOOR VERSATILITY - Weather-resistant plastic material stands up to both indoor and outdoor elements.

The M-D Building Products Replaceable Caulk Cord Weatherseal is a 90-foot flexible, gray plastic cord designed to seal small gaps and cracks around windows, doors, and plumbing. Its tool-free, easy application creates a durable barrier against drafts, moisture, and dust, making it ideal for temporary winter sealing or year-round weatherproofing. This versatile weatherstrip enhances home comfort and energy efficiency with quick installation and hassle-free removal.

Specifications

Manufacturer	M-D Building Products
Part Number	71548
Item Weight	1.76 ounces
Product Dimensions	10.5 x 7 x 8.5 inches
Item model number	71548
Is Discontinued By Manufacturer	No
Size	90'
Color	Gray
Style	Caulking Cord
Material	Plastic
Pattern	Solid
Shape	Rectangle
Thickness	0.25 Inches
Item Package Quantity	1
Number Of Pieces	1
Included Components	Hardware;Weatherstripping;weather-stripping
Batteries Included?	No
Batteries Required?	No
Warranty Description	Warranty

Have a Question? See What Others Asked

Is this product paintable (with latex paint)?

Can this be used as a backer on trim, with regular Big Stretch caulk on top for more permenance?

Can thisbe applied to a surface that is slightly wet? Like can it be put around a window if the window is weeping condensation?

Is it non-toxic?

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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₨320

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.