
Sulky Thermofix – join two layers of fabric without a seam
€12.00per piece
Unit price €9.60 / m² · incl. VAT, plus shipping
Thermofix is an iron-on bonding web at 50 g/m². It sits between two layers of fabric and joins them permanently under the iron — for appliqué, patches and textile collage, and for edges and hems as well.
Size: 25 cm × 5 m3 options
Sulky Thermofix 25 cm × 5 m
available to order, longer delivery time
Delivery time approx. 1 week
Free shipping within Germany from €50
- Material
- 100 % Polyamid
- Care
Wash at 40°C
Iron at high temperature
Wash without fabric softener or bleach
Do not tumble dry
- Certificate
- OEKO-TEX® Standard 100
- Breite
- 25 cm
- Länge (m)
- 5 m
- Manufacturer
- Gunold / Sulky
All 3 variants
About this range
Thermofix ist die aufbügelbare Klebefaser von Sulky mit 50 g/m². Sie verbindet zwei Stofflagen dauerhaft miteinander — für Applikationen, Aufnäher und Textilkollagen. Auch Kanten und Säume lassen sich damit kleben statt nähen.
Sewing tips
- Die Klebefaser zwischen die beiden Stofflagen legen und aufbügeln.
- Mit Backpapier oder einem Bügeltuch arbeiten, damit nichts am Eisen hängen bleibt.
- Vor dem Aufbügeln die Temperatur an einem Reststück prüfen.
- Für Applikationen erst kleben, dann umnähen — das hält am längsten.
- Die Verbindung ist dauerhaft und lässt sich nicht mehr trennen.
An appliqué has to lie flat before it is sewn. Pins only help so far: they lift the fabric, leave holes and get in the way exactly where the presser foot travels. A bonding web holds the piece flat in place until the seam is in.
Thermofix goes between the two layers and is ironed on. The bond is permanent — on small appliqué without any stitching, on hard-working pieces as preparation for the seam. Edges and hems can be bonded instead of sewn too.
Work with baking paper or a pressing cloth: the web melts, and anything reaching beyond the fabric edge otherwise sticks to the iron. A soiled soleplate passes the residue straight on to the next pale fabric.
Frequently asked questions
Does the bond hold without stitching?
On small appliqué, yes. Large areas and hard-working pieces should still be sewn — the bonding web then holds the fabric flat, so the seam runs more cleanly than it would over pins.
Why do I need baking paper?
Because the web melts under the iron. Anything beyond the fabric edge sticks to the soleplate and later ends up on the next pale fabric. The paper catches exactly that.
Can I bond hems with it?
Yes, that is the second use besides appliqué. A narrow strip is enough for a quick hem without stitching; on frequently washed pieces an additional seam remains the more durable answer.



