why cant the company answer and give me the info I want does it work as well to keep the cold out too or is it only for heat

An answer for everyone for all time: heat and cold are the same thing. Or you could say there's no such thing as cold. There is only heat. Heat is energy. Cold is the lack of heat. Therefore cold is the lack of energy. Therefore anything that insulates keeps cold out just as well as it keeps heat in, and vice versa. Insulation is a blockade for energy transfer. The blockade works both ways, keeping heat in exactly as well as it keeps heat out!

what constant heat temperature can this withstand?

I am not sure, I only use this for hot pads. Hopefully someone else will have the answer to your question. What are you planning on making? That might help with the answer.

Can this be used to line lunch bags to keep food cold along with an ice pack?

Insulbrite can be used to line lunch bags, unless for some reason they would be put into the microwave oven. There are aluminum fibers or threads all through insulbrite, which gives it the ability to keep in heat or cold. This is a great product and I love using it. I make pot holders with it and use 2 layers. It washes great!

which side of the Insul-bright faces the bottom layer of the fabric?

The shiny side faces surface that will touch the heat.

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🔥 Sew Warmth, Craft Style — Insulate Your Creativity!

CRAFT WITH CONFIDENCE - Trusted by both novice and expert sewers, this material transforms simple projects into standout, practical gifts.
ECO FRIENDLY LIGHTWEIGHT - Weighing just 181g, this sustainable insulating fabric adds warmth without bulk, perfect for mindful makers.
EFFORTLESS CARE DURABILITY - 100% polyester fabric and fill ensure long-lasting performance with easy machine washability—no special treatment needed.
NEXT LEVEL THERMAL PROTECTION - Insul-Bright’s needle-punched insulation locks in heat, making your handmade items both functional and safe.
PERFECTLY SIZED FOR CREATIVITY - Generous 36 x 45-inch panel fits a wide range of home sewing projects, from cozy potholders to stylish insulated bags.

The Warm Company’s Insul-Bright is a 36 x 45-inch needle-punched insulating fabric made from 100% polyester, designed for home sewing projects that require reliable heat retention. Lightweight and machine washable, it’s ideal for creating functional, safe, and stylish insulated items.

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€ 34.84

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Croatiastore

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Product dimensions	24.6L x 6.2W centimeters
Global Trade Identification Number	00753705063459
Manufacturer	Warm Company
UPC	683203186223 707004615789 753705063459 793532631407 885729090088 885853524695 094006455094 097006455095 098006455092 095006455091 885930771646 096006455098
Item Weight	181 g
Fabric Type	100% Polyester
Fill material	Polyester
Care instructions	Machine Wash
Number of pieces	1
Batteries required	No

The Warm Company 36 x 45-inch Insul-Bright Insulated Lining

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