The kit · heat
Iron and paper (heat transfer): what it removes and where never to use it
A warm iron pressed over plain brown paper or paper towels melts wax up into the paper.
- pH
- n/a
- Safe on
- 0 materials
- Never on
- 0 materials
- Used in
- 10 files
01 How to use it
Paper on top and underneath, iron on low to medium with no steam, move the paper to a clean area each time it darkens.
- Too hot and you scorch the fabric or set any dye in the wax.
How it works
Heat speeds up almost every chemical reaction, including the ones that bond stains to fibres. It helps melt fats and dissolve sugars, but it sets protein, tannin and dye stains that have not been lifted first.
Avoid routine home use on a couch, a microfiber couch, velvet, a car seat, leather, suede and marble. The table gives general restrictions; an unlisted restriction is not proof that a product is compatible.
02 What it works on
- Wax
A warm iron over paper is strongest against wax. It is part of the method in 10 stain files, for stains such as crayon and candle wax.
03 Where it is safe
| Material | Verdict | Why |
|---|---|---|
| Fabric couch | Avoid | An iron on fixed upholstery risks scorching or melting synthetic fibres; a hair dryer with blotting paper is gentler. |
| Microfiber couch | Avoid | Pressing an iron on velvet or microfiber crushes the pile into a shiny, permanent-looking patch; use a hair dryer and blotting paper instead. |
| Velvet upholstery | Avoid | Pressing an iron on velvet or microfiber crushes the pile into a shiny, permanent-looking patch; use a hair dryer and blotting paper instead. |
| Car seats | Avoid | An iron on fixed upholstery risks scorching or melting synthetic fibres; a hair dryer with blotting paper is gentler. |
| Leather | Avoid | Heat can shrink or mark leather; a hair dryer on low is gentler. |
| Suede and nubuck | Avoid | Heat mats suede; freeze and brush instead. |
| Marble | Avoid | Use a plastic scraper on stone; heat is unnecessary. |
| Clothes | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| White shirt | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Jeans | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Linen | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Sheets and bedding | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Towels | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Baby clothes | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Polyester | Test first | Lowest setting; synthetics can melt or go shiny. |
| Leggings and activewear | Test first | Lowest setting; synthetics can melt or go shiny. |
| Wool and cashmere | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Silk | Test first | Silk setting only, with paper in between. |
| Rayon and viscose | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Carpet | Test first | Low heat, paper between, keep the iron moving; synthetic pile can melt. |
| Wool rug | Test first | Low heat, paper between, keep the iron moving; synthetic pile can melt. |
| Mattress | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| White sneakers | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Granite | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Quartz countertop | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Wood furniture and floors | Test first | A hair dryer on low is gentler than an iron on wood. |
| Tile grout | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Painted walls | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
| Plastic containers | Test first | No material-specific permission is established by this general entry. Check the exact item and product labels and pretest; if compatibility is unknown, consult the manufacturer or a professional. |
04 How the files use it
A warm iron over paper appears in 10 stain files. The steps it is used in most:
- Iron it into paper (10 files): Wax mixtures and fabric heat tolerance vary. Use heat only if the material care instructions permit it; a low iron setting can still damage fabric or set candle dye.
05 Files that use it
06 Questions
What stains does a warm iron over paper remove?
It works best on wax, which is why it appears in the files for crayon and candle wax.
How do you use a warm iron over paper safely?
Paper on top and underneath, iron on low to medium with no steam, move the paper to a clean area each time it darkens. Too hot and you scorch the fabric or set any dye in the wax.
What should you never mix with a warm iron over paper?
This reference cannot establish that any commercial cleaner has no dangerous mixing partner. Do not combine cleaners unless their exact manufacturers explicitly permit the use; rinsing alone does not establish compatibility for later treatment.
Where should you never use a warm iron over paper?
Nowhere on file is ruled out completely, but check the material file before using it on anything delicate.