Hemline Extra Heavy Sew-In Interfacing - HN140

Firm, heavy weight sew-in interlining that is perfect for making stiffened curtain pelmets and var...

Best current price£5.99from Minerva

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3 offers from £5.99 - £97.33

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MinervaMinerva Extra Heavy Firm Sew In Interfacing White Hemline Hn140
£3.99 delivery
£5.99
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Hobbycraft Trading LtdHemline Extra Heavy Sew-In Interfacing By The Metre 90Cm
£4.95 delivery
£7.50
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eBayHemline Interfacing: Extra-Heavy: Firm: Sew-in: 25m x 90cm: White
£14.00 delivery
£97.33
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Product Information

Full details

The Hemline Extra Heavy Sew-In Interfacing (HN140) is designed for crafters and interior decorators who require significant structure, such as those creating stiffened curtain pelmets or durable bag bases. It provides excellent stability and substance to fabrics, making it an ideal choice for heavy-duty sewing projects that need to maintain their shape. One caveat to keep in mind is that because this is a sew-in product rather than fusible, it requires extra patience for pinning or basting into place before final stitching.

All features

Model Part NumberHN140
BrandHemline

Extended Product Information

FAQs

Is this interfacing fusible?

No, this is a sew-in interfacing, meaning it does not have an adhesive backing and must be stitched into your project.

Can I use this for clothing?

It is generally too stiff for most apparel, though it can be used for structured costume pieces or accessories like corset bones or heavy belts.

What is the material weight?

The interfacing has a weight of 170gsm, which qualifies it as a heavy-weight stabilizer.

How wide is the roll?

The fabric is 90cm wide.

Does it shrink when washed?

The viscose/polyester blend is stable, but we recommend pre-washing the interfacing if your final fabric project will be washed frequently.

Troubleshooting

Interfacing shifting during construction

Use more pins or apply a temporary basting stitch around the perimeter of the pattern piece before sewing the main seams.

Difficulty sewing through multiple thick layers

Use a heavy-duty or denim needle (size 90/14 or 100/16) and a slightly longer stitch length to help the machine feed the fabric through.

Pros and Cons

Pros

  • Provides firm, heavy-weight structure to fabric
  • Highly durable for frequent use items like bags
  • Machine washable at 30 degrees
  • Excellent for creating stiff curtain pelmets
  • Dry cleanable for professional fabric care

Cons

  • Sew-in application requires more labor than fusible alternatives
  • Not suitable for delicate or lightweight fabrics
  • Can add significant bulk to seam allowances

Setup, Compatibility & Care

To prepare this interfacing, measure your project area and cut the material using sharp fabric shears, as its density may dull standard scissors quickly. When pinning, use heavy-duty pins to avoid bending them on the stiff material. For care, because the interfacing is machine washable at 30 degrees, it is compatible with most standard home laundering processes. Always ensure that the interfacing is securely sewn into the structural seams to prevent it from bunching up during the wash cycle. If dry cleaning is preferred, this material holds up well to standard professional cleaning solvents.

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