How to Use Rit Dye: All-Purpose vs DyeMore & Step-by-Step Guide
Rit Dye can be used to recolour faded clothes, transform home textiles or give an old garment a completely new look.
But one decision matters before anything else:
What is the fabric made from?
Rit makes two main types of fabric dye, and choosing the wrong one is one of the most common reasons a dyeing project produces weak or uneven colour.
Rit All-Purpose Dye is designed primarily for natural fibres, rayon and nylon, while Rit DyeMore for Synthetics is intended for fabrics containing a higher proportion of polyester, acrylic or acetate.
This guide explains which one you need, how to use Rit Dye correctly and which dyeing method is suitable for your project.
You can also browse our complete Rit dye and clothing care range.
Rit All-Purpose vs DyeMore: Which Do You Need?
Start by checking the garment's care label.
| Fabric | Recommended Rit Dye |
|---|---|
| Cotton | Rit All-Purpose |
| Linen | Rit All-Purpose |
| Rayon / Viscose | Rit All-Purpose |
| Ramie | Rit All-Purpose |
| Silk | Rit All-Purpose |
| Wool | Rit All-Purpose |
| Nylon | Rit All-Purpose |
| Polyester Over 35% | Rit DyeMore |
| Acrylic Over 35% | Rit DyeMore |
| Acetate Over 35% | Rit DyeMore |
| Synthetic-Heavy Fabric Blends | Rit DyeMore |
The important number is 35%.
If the fabric contains more than 35% polyester, acrylic or acetate, Rit recommends DyeMore rather than ordinary All-Purpose Dye.
What About Cotton and Polyester Blends?
This is one of the most common questions about Rit Dye.
Imagine your garment is:
60% Cotton / 40% Polyester
The cotton and polyester fibres do not react to dye in exactly the same way.
Because the synthetic content is above 35%, Rit DyeMore is the more appropriate choice.
If the garment is:
80% Cotton / 20% Polyester
Rit All-Purpose Dye can be used because natural fibres make up the large majority of the fabric.
However, blended fabrics can sometimes produce a lighter or slightly different result because each fibre takes colour differently.
Always check the complete fibre composition rather than simply assuming a garment described as "cotton" contains 100% cotton.
Can You Use Rit All-Purpose Dye on Polyester?
Not for polyester-heavy fabric.
A small amount of polyester within a predominantly natural-fibre blend may still allow All-Purpose Dye to produce useful results.
But once polyester, acrylic or acetate makes up more than 35% of the fabric, use Rit DyeMore.
For high-polyester fabrics, heat is particularly important.
The Biggest Difference: DyeMore Must Be Used on the Stovetop
This is worth making very clear.
Rit All-Purpose Dye
Depending on the project, it can be used with:
- A Sink Or Bucket
- A Stovetop
- A Washing Machine
Rit DyeMore
For polyester and other synthetic-heavy fabrics, Rit requires the stovetop method because the dye bath needs to remain at a very high temperature.
You should not use DyeMore in the washing machine expecting the same result.
A domestic washing machine generally cannot maintain the temperature required for DyeMore to penetrate synthetic fibres effectively.
Liquid Rit Dye vs Powder Rit Dye
Rit All-Purpose is available in both liquid and powder form.
Prestige Shoe Care stocks:
and
Both are designed for the same general types of suitable fabric.
The main difference is format.
Liquid Dye
- Easy To Measure
- Easy To Mix
- Useful For Larger Or Repeat Projects
- Available In A Wide Range Of Colours
Powder Dye
- Compact And Convenient
- Useful For Smaller Projects
- Should Be Fully Dissolved Before Adding It To The Dye Bath
Neither format is automatically "stronger" simply because it is liquid or powder.
Before You Dye Anything
Good preparation makes a major difference.
Check the Care Label
Identify the fibre composition before buying your dye.
Weigh the Dry Fabric
The amount of dye required depends partly on how much fabric you're dyeing.
Large curtains obviously require considerably more dye than a single T-shirt.
Pre-Wash the Item
Wash the fabric first to remove:
- Dirt
- Oils
- Fabric Finishes
- Softener Residue
- Other Contamination
Do not use fabric conditioner before dyeing.
Remove Stains Where Possible
Dye changes colour; it does not automatically make stains disappear.
Uneven staining may remain visible after dyeing.
Understand Your Starting Colour
Fabric dye is generally transparent rather than an opaque coating.
That means the original colour affects the final result.
For example:
White + Blue → Blue
but:
Yellow + Blue → May Produce A Green Tone
and:
Red + Blue → May Produce A Purple Tone
Dyeing a lighter fabric darker is usually much easier than attempting to make a dark item significantly lighter.
If you need to reduce existing colour first, Rit Colour Remover may be appropriate for suitable fabrics.
However, colour removal is not guaranteed to produce perfectly white fabric, particularly where the material has been damaged, sun-faded or treated with highly colourfast dyes.
How to Use Rit All-Purpose Dye
For many home projects, the sink or bucket method is the simplest approach.
Step 1: Protect Your Work Area
Wear rubber gloves and protect surrounding surfaces from splashes.
Use a suitable container large enough for the fabric to move freely.
Step 2: Pre-Wet the Fabric
Wet the clean fabric thoroughly.
Starting with evenly damp fabric can help encourage more even dye absorption.
Step 3: Prepare Hot Water
Rit All-Purpose works best in hot water.
Use the hottest temperature that is safe for the fabric you're dyeing.
Natural-fibre projects generally use water at approximately 60°C or above, depending on the method and fabric.
Step 4: Add the Dye
Shake liquid dye thoroughly before use.
If using powder, dissolve it completely in hot water before adding it to the main dye bath.
Mix thoroughly.
Step 5: Add Salt or Vinegar Where Appropriate
The additive depends on the fibre.
For All-Purpose Dye:
Cotton, Linen, Rayon Or Ramie → Salt
Silk, Wool Or Nylon → White Vinegar
These help improve dye uptake for the respective fibres.
Step 6: Add the Fabric
Place the wet item into the dye bath.
Make sure it has room to move freely.
Avoid tightly folding or bunching the material because this can create uneven colour.
Step 7: Stir Thoroughly
Keep the fabric moving.
The first part of the dyeing process is particularly important for even colour.
Continue moving and turning the fabric so all areas receive similar exposure to the dye.
Step 8: Watch the Colour Develop
The longer the fabric remains in the dye bath, the deeper the colour can become.
Remember:
Wet fabric usually looks darker than it will when dry.
Do not wait until the wet garment looks exactly like your desired final dry colour.
Step 9: Remove the Fabric
Once you're happy with the colour, carefully remove the item from the dye bath.
At this stage, the correct next step depends partly on the fibre and whether you're using a dye fixative.
Do You Need Rit ColorStay Dye Fixative?
Rit ColorStay Dye Fixative is designed to help reduce colour bleeding and fading after appropriate Rit dye projects.
It is particularly useful with fabrics such as:
- Cotton
- Linen
- Rayon
- Ramie
- Suitable Natural-Fibre Blends
Rit also provides guidance for using it with other All-Purpose-compatible fibres.
For best results, follow the instructions for your exact fabric and dyeing method rather than automatically adding fixative to every project.
For synthetic DyeMore projects, do not assume ColorStay is required in exactly the same way. Synthetic-only fabric is handled differently, although a DyeMore blend containing natural fibres may have specific fixative guidance.
When Should You Use ColorStay?
Where suitable, use it after dyeing and before the final wash.
That timing is important.
Don't simply finish the entire process, wash and dry the garment and then assume the fixative will have the same effect afterwards.
How to Use Rit DyeMore for Polyester and Synthetics
DyeMore requires a different process.
If your fabric contains more than 35% polyester, acrylic or acetate, this is likely the section you need.
Step 1: Make Sure the Item Can Be Heated Safely
DyeMore requires sustained high heat.
That means the item needs to:
- Fit Freely Inside A Suitable Pot
- Tolerate High Temperatures
- Be Safe To Dye Using The Stovetop Method
This is why very large synthetic curtains or bulky synthetic items can be difficult to dye successfully with DyeMore.
Step 2: Use a Large Stainless-Steel Pot
The fabric needs enough space to move freely.
Crowding increases the risk of patchy colour.
Step 3: Heat the Water
DyeMore needs water kept close to boiling, around 93°C.
This sustained heat is what helps synthetic fibres accept the dye.
Step 4: Add Dye and Mix Thoroughly
Shake the DyeMore bottle well before adding it.
Mix the dye thoroughly into the hot water.
Step 5: Add the Wet Fabric
Pre-wet the item before putting it into the dye bath.
Then carefully immerse it.
Step 6: Keep the Fabric Moving
Stir continuously and keep the temperature high.
Polyester can require considerably more time than some natural fibres.
The fabric should remain submerged and moving so the colour develops as evenly as possible.
Step 7: Check the Colour
Remember that wet fabric appears darker.
Allow for some lightening once the item has been rinsed and dried.
Step 8: Rinse and Wash
Once the desired colour is achieved:
- Remove The Item Carefully
- Rinse In Warm Water
- Gradually Reduce The Water Temperature
- Continue Until The Rinse Water Becomes Clearer
- Wash With A Mild Detergent
- Dry According To The Garment Care Instructions
Can You Use Rit DyeMore in a Washing Machine?
No — not for the intended synthetic-dyeing process.
DyeMore needs sustained temperatures close to boiling, which an ordinary domestic washing machine cannot provide.
Use the stovetop method.
This distinction is particularly important when customers want to dye polyester curtains or other very large synthetic items.
If the material won't fit safely into a pot, DyeMore may not be practical for that particular project.
How to Use Rit Dye in a Washing Machine
The washing-machine method is an option for Rit All-Purpose Dye on suitable fabrics.
It's particularly useful for:
- Clothing
- Bed Linen
- Curtains
- Larger Cotton Items
- Projects That Need Plenty Of Movement
Do not substitute this method for DyeMore on polyester-heavy fabric.
The exact steps depend on whether you have a front-loading or top-loading machine, so follow Rit and your machine manufacturer's current instructions.
In general:
- Pre-Wash The Fabric
- Wet The Fabric
- Use The Hottest Suitable Wash Setting
- Prepare The Dye Properly
- Add The Correct Salt Or Vinegar For The Fibre
- Allow A Long Enough Dye Cycle
- Use ColorStay Where Appropriate
- Wash The Item With Mild Detergent
- Clean The Machine Immediately Afterwards
Rit specifically advises cleaning the washing machine after dyeing, particularly because plastic or rubber components can pick up colour if dye residue is left sitting on them.
Can Rit Dye Stain the Washing Machine?
Rit is designed to be used in washing machines, but you should still clean the machine immediately after the dyeing cycle.
Pay particular attention to:
- The Drum
- Door Seal
- Detergent Drawer
- Plastic Components
- Any Visible Dye Splashes
Follow Rit and your appliance manufacturer's cleaning guidance.
Can You Dye Curtains With Rit Dye?
Possibly, but check three things first:
What Are They Made From?
Cotton or linen curtains may suit All-Purpose Dye.
Polyester-heavy curtains would require DyeMore and therefore the stovetop method.
How Large Are They?
Fabric needs space to move freely for even dyeing.
Have They Been Sun-Damaged?
Curtains exposed to strong sunlight can fade unevenly or suffer fibre damage, which can make uniform recolouring more difficult.
Large polyester curtains are therefore one of the projects where dyeing at home can be less practical.
Can You Dye Cotton and Polyester Together?
If the item itself is a cotton/polyester blend, yes, but the fibre percentages matter.
For example:
80% Cotton / 20% Polyester
All-Purpose Dye is normally the logical starting point, although the polyester portion may remain lighter.
60% Cotton / 40% Polyester
Because synthetic content exceeds 35%, DyeMore is usually the more appropriate choice.
Expect blends to sometimes produce a softer or heathered result compared with 100% natural fabric.
Can You Dye Elastane or Spandex?
DyeMore can colour some fabrics containing spandex, but be cautious.
Stretch fabrics are frequently blends, so always look at the entire fibre composition.
More importantly, DyeMore requires very high temperatures.
Before dyeing, consider whether the garment and its elastic components can safely tolerate the required heat.
How Much Rit Dye Do You Need?
The amount depends on:
- Dry Fabric Weight
- Starting Colour
- Desired Final Colour
- Fabric Type
- Dyeing Method
- How Deep You Want The Colour
Large items such as curtains, bedding or multiple garments require more dye than a single shirt.
Very deep colours may also require additional dye.
Always weigh the fabric dry rather than estimating solely by the physical size of the item.
Why Did My Rit Dye Come Out Patchy?
Common causes include:
- Not Pre-Washing The Fabric
- Fabric Being Too Tightly Packed
- Insufficient Stirring
- Using Too Little Water
- Using The Wrong Dye For The Fibre
- Water Not Being Hot Enough
- Existing Stains Or Sun Damage
- Uneven Previous Colour
- Not Keeping Synthetic Fabric Hot Enough With DyeMore
Correct fibre identification is often the first thing to check.
Why Is My Rit Dye Too Light?
Possible reasons include:
- Wrong Dye Type
- Too Much Polyester For All-Purpose Dye
- Insufficient Dye
- Water Too Cool
- Too Short A Dyeing Time
- Too Much Fabric In The Dye Bath
- Starting Colour Affecting The Result
For synthetic fibres in particular, insufficient heat can produce weak colour.
Can You Dye a Dark Garment a Lighter Colour?
Dye itself does not work like white paint.
Putting a light dye over dark fabric will not normally turn it into a light colour.
You may need to remove or reduce the existing colour first using a product such as Rit Colour Remover, provided the fabric is suitable.
Even then, the final colour cannot always be predicted perfectly.
How Do You Restore Faded Black Clothes?
If the garment is suitable for All-Purpose Dye, Prestige Shoe Care also stocks the Rit Get Black Back Dye Kit.
It combines black All-Purpose Dye with ColorStay Fixative and is aimed specifically at refreshing suitable faded black fabrics.
As always, check the garment's fibre composition first.
A polyester-heavy black garment may need a different approach.
Frequently Asked Questions
What Fabric Does Rit All-Purpose Dye Work On?
It is intended for fibres including cotton, linen, rayon, viscose, ramie, silk, wool and nylon.
When Should I Use Rit DyeMore?
Use DyeMore when the fabric contains more than 35% polyester, acrylic or acetate, or for suitable synthetic-heavy blends.
Can I Use DyeMore in the Washing Machine?
No. DyeMore requires the sustained high temperature provided by the stovetop method.
Can I Use Rit Dye in the Washing Machine?
Rit All-Purpose Dye can be used in a washing machine on appropriate fabrics. Follow the current Rit instructions for your machine type. Please note as high temperature activates the dye, the stove top method is much more effective
Does Rit Dye Work on Polyester?
Use Rit DyeMore for polyester-heavy fabric. All-Purpose Dye is not designed to fully colour high-polyester fabric.
Does Rit Dye Work on Nylon?
Yes. Nylon is an exception among synthetic fibres because Rit All-Purpose Dye can colour it effectively.
Should I Use Salt With Rit Dye?
For All-Purpose projects involving cotton, linen, rayon or ramie, Rit recommends salt to help enhance colour.
Should I Use Vinegar With Rit Dye?
For All-Purpose projects involving nylon, silk or wool, Rit recommends white vinegar.
Do I Need Rit ColorStay Fixative?
It can help reduce bleeding and fading on appropriate fibres. Whether you need it depends on the fabric and dyeing method.
Can Rit Dye Cover Bleach Marks?
Sometimes dyeing can improve the overall appearance, but bleach can damage the fibres themselves, so perfectly even colour cannot be guaranteed.
How Long Should Fabric Stay in Rit Dye?
There isn't one universal time. Fabric type, desired colour depth, water temperature and dye type all matter. Keep checking the colour and follow the instructions for the specific dye and method.
Final Thoughts
Successful fabric dyeing starts with the care label, not the colour bottle.
The simplest rule is:
Natural Fibres, Rayon Or Nylon → Rit All-Purpose Dye
More Than 35% Polyester, Acrylic Or Acetate → Rit DyeMore
Then choose the appropriate method:
All-Purpose → Bucket, Sink, Stovetop Or Washing Machine
DyeMore → Stovetop
Once you've chosen the correct dye, concentrate on good preparation, enough water, correct heat and continuous movement of the fabric.
Browse our complete Rit dye and clothing care collection, including Rit All-Purpose Liquid Dye, Rit All-Purpose Powder Dye, Rit DyeMore, Rit ColorStay Dye Fixative and Rit Colour Remover.
