DF Mimas Plain Flame Retardant Curtains | Thermal
Flame Retardant
Made To Measure
British Made
5 Year Guarantee
DF Mimas Plain Flame Retardant Curtains | Thermal
Flame Retardant
Made To Measure
British Made
5 Year Guarantee
Currently 3-4 Weeks - UK Manufactured
UK Mainland Over £250
FREE
Best value dimout
DF Mimas plain flame retardant curtains (made to measure)
A soft-handle, plain dyed FR dimout fabric in 39 colours. Ideal for contract interiors and everyday homes.
Fabric type
FR dimout
Colours
39
Weight
255 gsm
Light filtering
97 to 98%
Top tip
Any of our curtains lined with our blackout lining are thermally certified to reduce heat loss by 30% over a double glazed window.
Will this suit my job?
Pick the closest match. This keeps expectations realistic.
Commercial and contract interiors
Flame retardant certifications for spaces like schools, halls, offices, care, hospitality.
Bedrooms and living rooms
Strong dimout performance, plus optional blackout lining for maximum light control.
If you want full blackout unlined
This is dimout, not blackout. Add blackout lining if you want the room properly dark.
If you want heavy theatre-style drape
Add interlining for a deeper, richer hang and improved insulation.
Straight talk: unlined Mimas filters about 97 to 98% of light. For proper blackout and the best thermal performance, choose blackout lining.
What you get
Flame retardant
Suitable for commercial use (see certifications below).
Made to measure
Made to your exact size and heading choice.
39 colours
Plain dyed range designed for easy matching.
Washable
Washing performance depends on lining choice.
Style note
This is our go-to plain dimout for simple curtains, blinds, cushions and throws.
The fabric
Soft-handle plain dyed FR decorative dimout. A reliable, premium-feel option with a big colour range.
Light control
Unlined fabric filters approximately 97 to 98% of light. Add blackout lining if you need the room properly dark.
Best drape
Add interlining for a richer hang and a more premium finish, especially on longer drops.
Key specs
Category
FR decorative dimout
Colours
39
Weight
255 gsm
Composition
100% polyester
Flame retardant certifications
M1, B1, EN 13773, BS 5867 Part 2 Type B & C, BS 7175, IMO FTP Code 2010 part 7, NFPA 701 1+2, CA19, Classe Uno
Care
40°C short cycle wash, do not bleach, do not tumble dry, cool iron 110°C. Dry clean P sensitive. Lining choice may change washing instructions.
Thermal performance
Comfort gain now, energy savings over time.
Up to 30% heat loss reduction (with blackout lining)
Superior insulation
Helps reduce heat loss in winter and improves comfort near windows.
Energy efficiency
Better temperature control can reduce heating demand. Blackout lining is the best choice for this.
Style meets function
Choose from 39 colours to match décor while improving comfort.
Thermal tip
For the best results: fit wider, go floor length, and reduce drafts around the frame.
Customer images
Real installs across halls, stages, bifolds and homes.
FAQ
Is this blackout? ⌄
Is it suitable for commercial use? ⌄
How do I get the best drape? ⌄
Can I wash the curtains? ⌄
Curtain heading options
Click to compare styles and see close-up examples.
⌄
Curtain heading options
Click to compare styles and see close-up examples.
We offer a flexible choice of headings for made to measure curtains. If you are unsure, choose the look you prefer and we will help with the practical details.
Pencil pleat
Traditional heading used on most windows. The sewn-in tape gives flexibility to adjust the height on tracks and poles.
Best for
Flexible fit
- Works on tracks and poles
- Easy to adjust drop with hooks
- Most forgiving option
Eyelet
Modern finish where the pole passes through the curtain. Looks great when you want the pole to be a feature.
Best for
Modern look
Available option
- Standard 44mm eyelets for 28mm and 35mm poles
- Clean folds and consistent wave-like drape
- Pole required (not for standard tracks)
Pinch pleat (triple)
A traditional, more tailored heading that looks grand in formal settings and makes a statement.
Best for
Premium
- Structured, hotel-style finish
- Great for long drops and wider curtains
Wave (60mm or 80mm)
Contemporary, uniform waves from end to end. Works best on a wave track system.
Best for
Contemporary
- Neat, consistent waves
- Requires compatible wave track
Quick note
Wave looks best with the right track and correct return sizes. If you are unsure, contact the team and we will advise.
Simple chooser
Most flexible
Pencil pleat
Modern pole look
Eyelet
Hotel finish
Pinch pleat
Contemporary waves
Wave
Further information
Ordering, advice, reviews, and where these curtains are used.
⌄
Further information
Ordering, advice, reviews, and where these curtains are used.
Ordering made to measure curtains
Enter your sizes and options above to generate your price. We use quality tapes and eyelets and flame retardant linings so the curtains hang correctly and last.
Bespoke quoting
If your project is larger or unusual, the team can help with measurements, headings, linings and best-value fabric choices. On larger jobs we can offer made-up samples so you can confirm what you are buying.
Reviews and case studies
Customer feedback is on Trustpilot and we also publish project photos and write-ups in our case study area: Testimonials. You can also view our Trustpilot reviews.
Where these curtains are used
Workroom and manufacturing notes
- Fabrics are checked and cut carefully before making.
- Made in UK workrooms to contract-grade standards.
- Standard made to measure curtains are made at 2x fullness (100% fullness) for a pleated finish.
- More detail: curtain fullness.
Delivered pulled and hooked
Your curtains arrive pleated to your track width, folded neatly, with hooks already inserted. You only need to clip them into your track or pole.
Seams on wider curtains
Wider curtains may require joined widths of fabric to achieve the finished size. Widths are rounded up to the nearest full width, so a joining seam can be present on larger curtains.
Lining options
Click to compare performance, blackout, drape and washability.
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Lining options
Click to compare performance, blackout, drape and washability.
All lining options from Direct Fabrics are flame retardant certified to BS5867 and can be used in commercial environments.
Unlined
Lowest cost option. Dimout fabrics provide strong shading and blackout fabrics can achieve full blackout in the fabric. Final light control depends on fitting and overlap.
Best for
Budget
- Best value
- Less fullness and drape than lined
- Light leakage depends on track position and overlap
Standard FR polyester lining
A cost-effective full lining that improves fullness and drape. Adds shade on standard fabrics. Commonly selected to give dimout and blackout curtains a more luxurious feel.
Best for
Drape
- Improves hang and fullness
- Inherently flame retardant
- Washability depends on final spec and fabric
3 pass FR blackout lining
Direct Fabrics’ go-to choice for bedrooms and anywhere you want proper darkness. Adds blackout, improves drape, and gives a thermal benefit.
Best for
Blackout
- Maximum light blocking in the fabric
- Thermal performance uplift
- Light at the edges depends on overlap and fitting
Note on washability
Blackout coatings have specific care limits. Follow the final care label for your chosen lining combination.
Duo blackout lining (fleece + blackout)
A heavyweight option that combines a fleece interlining feel with blackout lining attached. Helps improve room acoustics and gives a premium, substantial drape.
Best for
Acoustics
- Heaviest option for drape
- Improves room acoustics (absorption)
- Excellent for bedrooms, studios, and echo reduction
Quick chooser
Lowest cost
Unlined
Best drape
Standard lining
Proper darkness
3 pass blackout
Echo reduction
Duo lining
| Acoustic Absorption Rating | C Rating |
|---|---|
| Washing / Cleaning Information Face Fabric | 40 Degrees, 71 Degrees C (Unlined or Polyester Ivory Lined), Cool Iron, Dry Clean P Sensitive, Non Bleach, Non Tumble Dry |
| Flame Retardant Certified Rating | BS5867 Part 2C |
| Delivery | Currently 3-4 Weeks - UK Manufactured |
| Flame Retardant | Yes |
| Fabric Style | Plains, Semi Plains |
| Fabric Width (cm) | 150 |
| Pattern Repeat Vertical (cm) | 1 |
| Composition | 100% Inherent FR Polyester |
| Features | Flame Retardant, Thermal, Acoustic Absorption, Dimout (Unlined) |
| Product Attachment |
What are my Curtain Lining Options?
What are the different curtain heading options?
Which Size Curtain Eyelet do i need for my poles?
How much space will my curtains take up when stacking back
What are thermal curtains and how do they work?
How to Measure for a Wall-Fixed Curtain Track?
How to Measure for a Recess Fitted Blind
What is Curtain Fullness & What Fullness will my Curtains be?
How do I calculate how much curtain fabric I need?
Customer Product Reviews
Top customer reviews
Reviews with images
Images in this review
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Order arrived under 2 weeksThey said the order will be between 3 - 4 weeks I called and pleaded that they should increase their tun around period and lo and behold my curtains were delivered under 2 weeks Thanks a lot you made my day0 people found this helpful
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First class company to deal with.We recently had new curtains made by Direct Fabrics for our village hall, and we’re really happy with how everything turned out. The whole process was smooth from start to finish. The team were friendly, easy to deal with, and gave us helpful advice on what would work best for the space. The curtains themselves look great and feel really well made—they’ve made a big difference to the hall. Initially there was a problem with the fabric we chose and we had to wait for a fresh batch, the communication was first class during the wait and our order was prioritised once the fabric arrived. I would definitely recommend Direct Fabrics.0 people found this helpful
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Great service from start to finishOrdered a pair of fire resistant curtains for my mums carehome room.. Great service from start to finish.. Sent samples out which came really fast.. Ordered over the phone . Emails all the way until curtains we're delivered.. Curtains are lovely and mums made up.. Thankyou would 100% use again..0 people found this helpful
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Excellent customer relationsExcellent customer relations in placing the order, getting things correct at the start. Only hiccup was the request to ring on delivery as our building is empty. Luckily someone was in a building next door.0 people found this helpful
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Direct Fabrics were very helpful from…Direct Fabrics were very helpful from day one and were able to get me reasonable delivery costs to delivery to Northern Ireland. Bedding & curtains look amazing in my mothers Nursing Home bedroom.0 people found this helpful
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Outstanding companyJane was exceptional in helping me with my purchase. She got in touch to ask me about an online purchase I'd made after it appeared I'd made an error with my measurements. She guided me to not only the correct sizing but a more efficient material and rail option that cost a lot less than I was expecting to pay. I now know more about curtains than I ever thought possible. I will certainly recommend them and will also be in touch if I need anything else in the future.0 people found this helpful
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Great quality, very well madeGreat quality and very well made curtains. Very good commuication with company too. Thank you.Would highly recommend.0 people found this helpful
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Good Service, good products and fast deliveryGood Service, good products and fast delivery0 people found this helpful
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well made and fitted exactly to my measurementsthermal curtains ordered which i found effective for limiting heat loss. curtains well made fitted perfectly to measurements provided by me. delivered on time0 people found this helpful
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Always delivered a professional serviceAlways delivered a professional service0 people found this helpful
How to Measure For Curtains, Blinds and Tracks.
Pen and Paper
For recording your
measurements.
Helper
Someone to assist if your
windows are large .
Metal Tape Measure
As this will allow you to get a
rigid full length measurement.
Make sure your curtain tracks and poles are fitted in the position you want.
Choose the type of curtains that you would like and how you want to hang your curtains. See our heading styles guide
We recommend fitting your hardware first before measuring, this avoids any issues with not getting the perfect fit.
Measure your window using our main guide. Quick summary below. Remember wave, pinch, and designer headings require slightly different measurement
Measure in 3 places and take the shortest drop – Floors and ceilings can run out.
Double / Triple check your measurements
Choosing your Curtain Track Width
The width of the curtain track should extend past your window this allows for the curtains to stack back away from your window and allow light in.
Measure your recess and then add on 15cm on either side. For acoustics , we recommend further to fully cover the window and the surrounding area. In our test we added an additional 30cm to the width and also made the curtain floor length.
Wave curtains, for every 100cm of track the curtains will stack circa *18cm
Eyelet curtains, they will stack back circa 10cm per *70cm of track width
Pencil Pleat will stack approx 25% of the track width. eg. 210cm track will stack 52.5%
* all dependent on thickness of fabric
Selecting your Curtain Drop
Where to Measure From for Different Type of Curtains
|
Type of Curtains |
Fitted On |
Where to Measure from - to desired length |
|
Pencil Pleat Curtains |
Curtain Track |
Top of the Track - If using a extra wide track or designer track like silent gliss metropole, then measure from the underside of the track. |
|
Pencil Pleat Curtains |
Curtain Pole |
Measure from small ring at the bottom of eye under the ring, this is where your curtain clips into. |
|
Eyelet Curtains |
Curtain Pole – Only |
Top of the pole *we add on the upstand to our curtains, |
|
Pinch Pleat Curtains |
Curtain Track |
The underside of the track |
|
Wave Curtains |
Curtain Track Designer Pole |
The glider underneath the track. The curtain will sit under the track. |
|
Acoustic Curtains |
See Heading Style of Choice above |
Same but make sure wider than normal ideally 30cm past either side and 30 above. Also to the floor. |
How to Measure for Blinds going Inside the Recess
- Measure the exact width of the recess in three places; at the top of the recess, in the centre of the recess and near the bottom - then take the smallest size.
- Measure the exact drop of the recess in three places on the left hand side of the recess, in the centre of the recess and on the right hand side of the recess - then take the smallest size.
- We will take one cm off the finished width size you have given us, to allow for the blind to pull up and down easily.
- Double check your measurements
- Cord Safety - Mounting Height - We ask for the mounting height of your blinds to allow for the cord to be 150cm off the ground. If mounting at 210cm This is what you enter in the Fitting height box. We make a deduction to ensure the cord is 150cm from the floor. Thus the cord loop will be 60cm
How to Measure Outside of the Recess
- Measure the recess in 3 places on the width and also 3 places on the drop. Take the widest measurement.
- Measure the width of the actual recess plus an additional amount – Usually from 7cm-15cm whatever you think looks appropriate. This is for overlap.
- Measure the exact drop of the recess. The blind would be fitted above the recess, so check the space above and add an amount on to the drop – usually from 7-15cm
- These sizes you have taken will be the size of the finished blind.
- Double check your measurements
- Cord Safety - Mounting Height - We ask for the mounting height of your blinds to allow for the cord to be 150cm off the ground. If mounting at 210cm This is what you enter in the fitting height box. We make a deduction to ensure the cord is 150cm from the floor. Thus the cord loop will be 60cm
Cubicle Tracks you have to measure with right angles from wall to wall where you want the track to go
Draw your room on a piece of paper with a sky view
Now measure from the wall to wall for straight tracks,
L Shape Tracks Measure to a point on the floor and mark with a piece of tape. Then for the other sides measure from the other wall to that point.
Always check for obstructions and fitting issues you may need to work around
SAVE TIME - Send your project requirements, large or small. Sample Lists etc