Does it become hard once set? Wanting to use as a mother mold

It never sets - it remains soft and pliable. I would use hydrocal for the mother mold or reinforced fiberglass with epoxy.

Does this cure flexible or rigid?

This product does not cure at all. It remains pliable indefinitely

Does this putty maintain its shape once molded, like modeling clay, or does gravity cause it to melt back down?

Yes and it was very easy to work with. it did not stick to you hands and you could mold it very easy.

Wrap around outdoor speaker wire (binding post connection) for additional waterproofing? Want something removable for winter storage of speakers.

This is potentially messy for that application. Try using E/FUSING 112 to wrap wires to protect them from elements.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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900 Moldable Silicone Putty - Gray Rectangular Shape

Product ID: 139748118

Details

Brand
E/FUSING
Item Weight
1.6 ounces
Material
Silicone
Style
Gray
Water Resistance Level
Waterproof

💧Waterproof for reliable leak protection

🛠️Moldable silicone putty for precision sealing

🇺🇸Proudly made in the USA

₹ 2485

Duties & taxes included

In stock

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Description

🛠️ Seal it. Fix it. Own it. The ultimate putty for pros who won’t settle.

COMPACT READY TO USE - Lightweight 2.65 oz package fits perfectly in your toolkit for on-the-go repairs
PRECISION LEAK SEALING - Easily molds to fill pinhole leaks on pipelines for instant fixes
VERSATILE COMPATIBILITY - Works seamlessly on metal, plastic, and rubber surfaces for all your repair needs
REINFORCE WITH CONFIDENCE - Use with E/Fusing 140 or 330 wraps to strengthen and secure your seal
DURABLE WATERPROOF BARRIER - Creates a resilient, waterproof seal that stands up to moisture and wear

The 900 Moldable Silicone Putty is a gray, rectangular, waterproof silicone compound made in the USA, designed to quickly seal pinhole leaks on pipelines. Compatible with metal, plastic, and rubber, it can be reinforced with E/Fusing wraps for enhanced durability. Lightweight and easy to use, it’s a trusted choice ranked #23 in Silicone Adhesives with a 4.4-star rating from 1,766 users.

Specifications

ASIN	B07RV5R33Y
Best Sellers Rank	#6,072 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #35 in Silicone Adhesives
Brand	E/FUSING
Brand Name	E/FUSING
Color	Gray
Compatible Material	Metal, Plastic, Rubber
Customer Reviews	4.4 out of 5 stars 1,788 Reviews
Item Form	Putty
Item Weight	1.6 ounces
Manufacturer	Midsun Specialty Products
Material	Silicone
Material Type	Silicone
Model	E/FUSING 900
Number of Items	1
Number of Packs	1
Part Number	E900-010
Style	Gray Rectangular
Style Name	Gray Rectangular
UPC	764759609005
Unit Count	2.65 Ounce
Water Resistance Level	Waterproof

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