Insul-Bright Heat-Resistant Batting 45" x 40 yards

Insul-Bright Heat-Resistant Batting — 45" x 40 yards is the production format of The Warm Company's thermal lining — the widest, longest Insul-Bright for shops and makers producing insulated kitchen goods and bags at scale.

Product Details

• Construction: Needle-punched polyester through reflective metalized film — identical to all Insul-Bright formats
• Size: 45" x 40 yards — roughly 150–200+ oven mitt pairs or 250–300+ pot holders per bolt
• Heat use: Conventional oven/stovetop protection — NOT microwave safe; use Wrap-N-Zap for microwave projects
• Storage: Roll storage preferred — the metalized surface can crease if folded long-term
• Brand: The Warm Company

Frequently Asked Questions

What does the 45" width unlock versus 22"?

Larger single pieces — insulated grocery bags, casserole carriers, aprons — plus side-by-side nesting of smaller pieces that cuts waste and cutting time dramatically in production.

How much output per bolt?

Approximately 150–200+ mitt pairs or 250–300+ pot holders — shop-retail and craft-fair scale.

Can it do insulated totes and wine bags?

Yes — 45" covers bag panels, gussets, and bases without piecing on most standard patterns.

Why can't it go in the microwave?

Metallic fibers arc under microwave energy — microwave projects need 100% cotton Wrap-N-Zap. The two battings are complements, not substitutes.

Do finished pieces wash?

Yes — warm wash, low tumble; the heat-resistant properties persist through laundering.