M36 PolyCotton Corespun Sewing Thread 4000mtr Cone, 1180 Slate
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M36 PolyCotton Corespun Sewing Thread 4000mtr Cone

£18.38

No VAT added. UK delivery £15.54, free on orders of £180 or more. Delivery and returns

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Listed as in stock on 13 November 2026. Availability confirmed before payment.

Product details

M36 PolyCotton Corespun Sewing Thread supplied on a 4,000 metre cone for professional upholstery, furniture manufacture, cushion making, soft furnishings, mattress production and suitable industrial sewing applications. The corespun construction combines continuous polyester filaments with an outer covering of cotton fibres, providing strength from the polyester core together with the softer feel and sewing characteristics of cotton. The cotton surface also retains thread lubricant effectively and helps protect against heat generated around the sewing-machine needle during production sewing. For an alternative strong upholstery thread, compare Somabond 40's Bonded Nylon Sewing Thread. For overlocking applications, see Spun Polyester 120's Thread. Available in: a broad selection of upholstery colours for construction seams, cushions, piping and other suitable machine-sewn work

Full description and care

M36 PolyCotton Corespun Sewing Thread, 4000m Cone

M36 PolyCotton Corespun Sewing Thread is a professional machine-sewing thread combining the strength of continuous polyester filaments with the softer surface characteristics of cotton.

Cotton staple fibres are spun around the continuous polyester filaments, with two or more plies then twisted together to form the finished thread.

This construction makes M36 a useful choice for furniture upholstery, cushion manufacture, soft furnishings, mattress production and a wide range of suitable industrial sewing applications.

Supplied on a generous 4,000 metre cone and available in a broad selection of colours.

see the Sewing Threads & Barbobs range for professional machine-sewing thread and pre-wound bobbins.

Polyester Strength with a Cotton Outer Surface

The corespun construction brings together two different fibre characteristics.

The continuous polyester core provides much of the thread's strength, while the cotton outer fibres create a softer surface.

The cotton covering also retains thread lubricant effectively and provides useful protection against heat generated around the sewing-machine needle.

These characteristics make corespun thread particularly useful for repeated professional sewing where good machine performance and a softer thread surface are desirable.

Suitable for Upholstery & Furniture Sewing

M36 PolyCotton Corespun Thread can be used for suitable:

  • Furniture upholstery
  • Sofa and chair covers
  • Cushion covers
  • Seat and back cushions
  • Soft furnishings
  • Mattress manufacture
  • Natural and blended upholstery fabrics
  • General industrial sewing
  • Piped seams
  • Zip panels

The final suitability will depend on the sewing machine, needle, material thickness, number of layers and construction of the seam.

For upholstery materials, browse Status Fabrics' Vinyl & Fabric range.

M36 Corespun or Bonded Nylon Thread?

For another professional upholstery option, compare M36 with Somabond 40's Bonded Nylon Sewing Thread.

The two threads have different constructions and sewing characteristics.

M36 uses a polyester core with a cotton outer covering, while Somabond is a bonded nylon sewing thread.

The choice should therefore be based on:

  • Covering material
  • Sewing-machine setup
  • Needle
  • Seam construction
  • Required stitch appearance
  • Number of fabric layers
  • Intended application

Do not select between the two simply by comparing their thread reference numbers or cone sizes.

A test seam using the actual upholstery material is the best way to confirm the finished result.

Sewing Piping & Cushion Borders

Corespun thread is particularly relevant to cushion and furniture-cover manufacture, where the machine may need to sew through several layers at once.

A piped cushion seam can contain:

  • Main upholstery fabric
  • Piping strip
  • Piping cord
  • Cushion border
  • Folded seam allowances
  • Additional layers at corners and junctions

Browse Piping Cords for piping used around cushions, furniture edges and upholstered panels.

Test the complete piped construction before beginning the finished cover, particularly where several seam allowances cross one another.

Sewing Zip Panels & Removable Covers

M36 can also form part of the sewing setup used when producing removable cushion covers and other upholstered components incorporating a zip.

Browse the Zipping range for zip chain, sliders and associated cushion-making components.

When sewing around zips, check:

  • Needle position
  • Zipper-foot clearance
  • Stitch length
  • Thread tension
  • Material thickness
  • Alignment of adjoining panels

Testing an offcut first is particularly worthwhile where the finished cover combines fabric, piping and a zip within the same seam.

Choosing a Colour

M36 PolyCotton Corespun Thread is available in a broad range of upholstery colours, including natural, white, black, beige, cream, greens, blues, reds, greys, gold, yellow and several brown tones.

Thread can be chosen to:

  • Blend with the upholstery material
  • Coordinate with piping
  • Match an existing seam
  • Remain inconspicuous within the construction
  • Provide deliberate contrast stitching

Where the stitching will remain visible, compare the physical thread against the upholstery material whenever possible.

Screen colours can vary, and the finished appearance can also change according to stitch length, fabric texture and lighting.

Match the Thread, Needle & Machine Setup

Reliable upholstery sewing depends on the complete combination of thread, needle, machine and material.

Before production sewing, check:

  • Correct sewing-machine needle system
  • Suitable needle size
  • Needle condition
  • Upper-thread path
  • Bobbin type
  • Upper and lower tension
  • Stitch length
  • Material thickness
  • Number of layers

A machine that sews two flat layers correctly may require adjustment when crossing piping, folded seams or multiple upholstery layers.

Change one setting at a time and test on offcuts rather than experimenting on finished panels.

Pre-Wound Barbobs for Production Sewing

For compatible machines, pre-wound Barbobs can reduce time spent winding individual bobbins during regular production work.

Type G and Type L are different bobbin formats and are not interchangeable.

Always check the sewing-machine specification, existing bobbin and bobbin case before ordering.

The upper and bobbin threads must also work correctly together, so test the finished stitch from both sides of the material.

Overlocking Requires a Different Thread

The main construction seam and an overlocked fabric edge perform different jobs.

For neatening and securing suitable raw fabric edges, see Spun Polyester 120's 5000 Yard Cone.

This is primarily an overlocking thread and should not automatically be substituted for M36 where the main seam needs to carry the load between upholstery panels.

In a typical furniture cover, the overlocking controls the cut edge while the main construction thread forms the structural seam.

Sewing Machine Maintenance

Thread performance can also be affected by the condition of the sewing machine.

Lint, loose fibres and debris can accumulate around the hook, bobbin and thread path during upholstery work.

Where lubrication is required by the machine manufacturer, use 125ml Sewing Machine Oil sparingly at the specified lubrication points.

After oiling, sew onto waste material first to confirm no excess lubricant can transfer onto the finished upholstery.

Machine Thread or Traditional Upholstery Twine?

M36 is a machine-sewing thread and performs a different job from heavier traditional upholstery twines.

For machine construction seams, piping, cushion covers and related sewing, browse Sewing Threads & Barbobs.

For edge stitching, spring work, buttoning, hand sewing and slip stitching, explore Upholstery Twines.

Additional product information

M36 PolyCotton Corespun Sewing Thread supplied on a 4,000 metre cone for professional upholstery, furniture manufacture, cushion making, soft furnishings, mattress production and suitable industrial sewing applications.

The corespun construction combines continuous polyester filaments with an outer covering of cotton fibres, providing strength from the polyester core together with the softer feel and sewing characteristics of cotton.

The cotton surface also retains thread lubricant effectively and helps protect against heat generated around the sewing-machine needle during production sewing.

Available in a broad selection of upholstery colours for construction seams, cushions, piping and other suitable machine-sewn work.

For an alternative strong upholstery thread, compare Somabond 40's Bonded Nylon Sewing Thread. For overlocking applications, see Spun Polyester 120's Thread.

see the Sewing Threads & Barbobs or wider Sewing Threads & Twines range.

Range options and attributes
Colour
1000 Natural, 1001 White, 1002 Black, 1016 Light Beige, 1020 Cream, 1052 Lime, 1054 Straw, 1055 Sage, 1065 Dark Green, 1071 Leaf Green, 1075 Mid Green, 1150 Sky Blue, 1170 Blue, 1180 Slate, 1200 Navy, 1230 Red, 1250 Wine, 1254 Fuschia, 1295 Light Grey, 1303 Grey, 1347 Gold, 1350 Yellow, 1400 Brown, 1425 Dark Brown, 1450 Brick, Slate

Specifications are reproduced from supplied product data and have not been checked against a physical sample. Colours vary between screens and devices, so on-screen images may not exactly match the physical material.