Flame retardant made for delicate, lightweight fabrics
Flamex DF is a professional water-based flame retardant formulated for delicate and lightweight textiles — silk, chiffon and fine drapes. It reduces flammability while keeping the fabric’s natural appearance, softness and drape, where general retardants can stiffen or mark.

Common fabrics treated with Flamex DF
- Silk scenic fabrics
- Chiffon and lightweight drapes
- Muslin backdrops
- Decorative event fabrics
- Lightweight theatrical drapery
- Stage costumes and textile props
- Exhibition display fabrics
- Fine fabric scenic elements
Best for — and the alternatives
Flamex DF is best for
- Delicate, lightweight textiles
- Fabrics that must keep their drape and feel
- Silk, chiffon and fine decorative fabric
- Costumes and soft scenic props
Treating a different material?
Flamex DF is for delicate fabrics. For sturdier or other materials:
- Flamex NF → natural fabrics (cotton, muslin, canvas)
- Flamex SF → synthetic fabrics (or Flamex MC)
- Flamex MC → wood, foam & mixed materials
Flamex DF specifications
Delicate fabrics vary widely — always test on an offcut first to confirm appearance and drape are unaffected before treating the whole piece.
| Type | Water-based flame retardant for delicate textiles |
| Materials | Silk, chiffon, muslin and lightweight fabrics |
| Application | Spray |
| Appearance | Maintains natural look, softness and flexibility |
| Sizes | 3.8 L and 19 L |
Typical applications
Fine drapes
Treats silk and chiffon without stiffening the fabric.
Costumes
For lightweight stage costumes and textile props.
Event décor
Reduces flammability of decorative event fabrics.
Which flame retardant do I need?
Different scenic materials need different Flamex treatments. Match the job to the material:
View Flamex NF
View Flamex DF
View Flamex PC
View Flamex PA
View Flamex MC
Need help specifying?
Treatment depends on the material, the venue's fire requirements and the application method. Talk to us before you treat a whole build.
Flame retardants reduce flammability; they do not stop materials from burning. Always test on a sample and follow the venue's fire authority requirements and the product data sheet.
Not sure yet? Order a sample — free for new customers, just pay postage.
