Ardex A 125 Fine Coat Smoothing and Finishing Render 22kg

£31.21 inc. VAT
£26.01 ex. VAT

Product ID: 24131
Suitable For: leveling and smoothing surface irregularities on vertical and overhead substrates
Area of use: INT & EXT
Application Method: trowel
Volume: 22KG
Container Type: bag
Type: mortar
Colour: grey
Brand: Ardex
Manufactuer: Ardex
Box Size: 1

Data Sheets

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ARDEX A 125 is a grey, cement-based finishing render and repair mortar that effectively addresses surface imperfections, voids, and damage. When mixed with water, it forms a slump-free mortar that dries to a durable, water-resistant finish with a smooth and dense surface ideal for painting.

Key Points:

Versatile Application: Suitable for leveling and smoothing irregularities on vertical and overhead surfaces like concrete, brickwork, blockwork, and existing cement/sand renders.
Durable Finish: Produces a hard-wearing surface that can be left exposed or painted, making it suitable for various decorative coatings.
Internal and External Use: Ideal for both indoor and outdoor applications, particularly in moisture-prone areas such as swimming pool halls and underground tunnels.
Limitations: Not suitable for use on low-strength backgrounds like lime/sand renders.

Coverage: The material requirement for ARDEX A 125 is approximately 1.4 kg of powder per square meter per millimeter of thickness. This means that one bag can cover about 5 square meters at a thickness of 3 mm.

Storage and Shelf Life: ARDEX A 125 should be stored in its unopened packaging, off the ground, in a cool, dry environment, and protected from strong drafts. When stored correctly, the shelf life of this product is 12 months from the date indicated on the packaging.

For more in our range of mortars, please click here. For our full range of Ardex products, click here.

Alternatively, you can visit the Ardex wesite by clicking here.

ARDEX A 125 is ideal for leveling and smoothing surface irregularities on vertical and overhead substrates, including concrete, brickwork, blockwork, and previously applied cement/sand renders. It dries to a smooth, durable surface that can be left exposed or painted with cement-resistant decorative coatings. Suitable for both internal and external applications, ARDEX A 125 is particularly effective in moisture-prone areas, such as swimming pool halls and underground tunnels. Note: It is not recommended for use on low-strength backgrounds, such as lime/sand renders.

Surface Preparation

The surface must be rigid, clean, and free from dust, grease, and any other materials that could hinder adhesion, and it can be either dry or damp. It is advisable to use ARDEX Degreaser to remove oils, waxes, curing agents, and other contaminants from the substrate. Any loose surface coatings that are not firmly bonded should be removed before application. In-situ concrete, brickwork, and concrete blockwork should be a minimum of six weeks old to allow for initial drying shrinkage. Thoroughly remove paint, gypsum plaster, and other barriers to expose a clean, solid background. Settlement cracks can be filled with rendering mortar, but cracks caused by structural movement cannot be guaranteed to be eliminated. Small cracks should be enlarged for better contact with the material. Metal components require proper corrosion protection. When rendering over dense surfaces like old glazed bricks, ceramic tiles, or timber-framed constructions, or where old paint finishes cannot be removed, install anchored reinforcement securely fixed to the background, following the guidelines in BS 5385: Part 2. Proper substrate preparation is essential for ensuring the render adheres effectively. We recommend applying ARDEX AM 100 Rapid Hardening One Coat Render through the reinforcement, which can be applied up to 20mm thick, allowed to harden for at least two hours, and then smoothed with a thin layer of ARDEX A 125 for the desired finish.

Mixing

To mix ARDEX A 125, add the powder to water in a clean container while stirring, ensuring a thorough mix to achieve a slump-free, easily workable mortar. Using an ARDEX mixing paddle with a 10mm chuck variable speed electric drill is recommended for ease of mixing. The mixing ratio by volume is approximately 3 to 3½ parts ARDEX A 125 powder to 1 part water. A 22kg bag of ARDEX A 125 requires around 5½ to 6 liters of water. The pot life of the mixed mortar is approximately 4 hours at 20°C.

Application

Apply the mixed mortar with a suitable trowel to the prepared substrate as a bonding layer or scratch coat, approximately 1mm thick, then apply the ARDEX A 125 mixed mortar to the desired thickness, using the fresh-in-fresh method to reduce bubbling. The maximum application thickness is 5mm. For a smooth finish, lightly trowel the surface with a wet tool once it becomes firm. After drying for about 24 hours at 20°C, ARDEX A 125 can be painted or covered with other cement-resistant decorative coatings. For localized thicker applications, such as filling cracks and holes, use ARDEX A 46 Multi-Purpose Repair Mortar. For smoother finishes, apply ARDEX A 125 on top of ARDEX A 46 once it has set sufficiently, which can take as little as one hour at 20°C. For deeper applications over larger areas, ARDEX AM 100 Rapid Hardening One Coat Render can be applied from 2mm to 20mm, then smoothed with ARDEX A 125 in as little as 2 hours. For more details, consult the relevant datasheets or contact ARDEX Technical Services.

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Type of window frame material	Minimum witdth of joints for a butled mounting b in mm				Minimum witdth of joints for a inner mounting b in mm
Hard PVC (white)	10	15	20	25	10	10	15
Hard PVC and PMMA (dark) (colour extruded)	15	20	25	30	10	15	20
Hard PUR integral foam	10	10	15	20	10	10	15
Wood-aluminium-window	10	10	15	20	10	10	15
Aluminium-plastic sandwich frame (bright)	10	10	15	20	10	10	15
Aluminium-plastic sandwich frame (dark)	10	15	20	25	10	10	15
Wooden window frame	10	10	10	10	10	10	10

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Ryan Thorne

16:04 28 Oct 24

Sun Shine

11:56 01 Oct 24

I made a purchase from Sealant Supplies for Mapei Kerapoxy (5kg) (who were significantly cheaper than elsewhere, I ended up buying 4 tubs!).For those in the know.... this is an excellent product, easy to apply, excellent finish and most important the only product to use when you want your white grout to remain white!Epoxy grout is more expensive than normal grout, but in my view it works out so significantly cheaper. We did a huge bathroom, including steam shower, using 2 tubs.I always measure small quantities to mix, apply, have a cuppa, wash off, and the following morning wash again to remove any haze.The UK is very slowly becoming aware of the benefits of Epoxy grout, so this product is rarely kept in stock. Usually website do not advertise this, but inform you at point of purchase. On Sealant Supplies website, they were honest stating this was not a stocked item, and giving a rough delivery period. I was extremely pleased when the items we ordered where dispatch immediately and received the following day, in perfect condition.I normally do not write reviews (good or bad), but after having numerous issues with suppliers, it was such a pleasure to order something, and receive what I ordered timely, in perfect condition at the cheapest price.I cannot recommend this company enough, and will be using them going forward.

Tony Zudys

11:05 01 Oct 24

What a happy discovery! One supplier with every possible sealant or adhesive, whatever you purpose.Excellent pricing, rapid delivery, and best of all wonderful videos showing expert tips - wish I'd seen those a few years ago!

Colin McClung

10:09 01 Oct 24

Excellent product range, excellent service

Acton Glass Ltd

15:21 28 Aug 24

Great Company. Wide range of sealants and excellent prices. I will buy it again.

Ady

04:46 13 Aug 24

Fantastic range of sealants and other products at very good prices, all with knowledgeable friendly service.Recommended.

Nicole Ho

12:41 06 Aug 24

The service is fast and reliable. Every question is answered promptly, with quick responses and a friendly attitude.

Roger Rockley

11:40 06 Aug 24

Top drawer, delivery,quality and price point 10/10 thx

Kathy

10:22 06 Aug 24

Excellent choice of products here at very competitive prices combined with good old-fashioned customer service and extremely fast delivery. Will keep shopping here.

Ian Black

10:19 06 Aug 24

Good variety of products, prices very competitive and a first class delivery.Definitely use again.

P B

10:17 06 Aug 24

ExcellentGreat products and service, definitely recommend!

Bradly Gladden

09:50 10 Jul 24

Always friendly staff very helpful and always have what I need in stock

David R.

09:26 10 Jul 24

Excellent company to deal with, and with a good range of products at competitive prices.

Ashley Stevens

12:28 09 Jul 24

Great to deal with 100% will use again.

waqas rafiq

09:11 17 Jun 24

Amazing service from Mike and the team, got exactly what I needed and was kept updated through out the whole way. Will most certainly be using them again!

Jacqueline Kelsall

15:37 05 Jun 24

Highly recommend.Good products at competitive prices. Dispatched promptly and well packaged.

Alan Fuller

14:03 02 May 24

The service we received from SSL was exceptional. Very clear and easy to use website, speedy delivery along with fantastic products which deliver what it says on the tin. Plus staff gave me good advice regarding which product would be best for my project. Well done SSL.

Charlene Hurlock

08:30 25 Apr 24

Great service - Love Reggie!

Carla Villa

06:20 25 Apr 24

Quality sealant and adhesive properties good value for money I'll use again without doubt many thanks

Beverley Betts

13:17 24 Apr 24

Very fast delivery. Very good product. Very happy with service.

Tim B

10:54 14 Apr 24

Over a week and still no details about what is going on with my order. Will likely will have to do a charge back.

Christian Gluntz

10:13 02 Feb 24

Dianne David

13:07 20 Jan 24

I needed to fix a couple of mouse mesh panels to outside airbricks. Realising that they would needed to be stuck instead of screwed into place, I googled sealant and adhesive that would do the job.Sealant Supplies had exactly what I needed and at a brilliant price. It was delivered really quickly and I'm really pleased with the result.

Luke Badcock

11:32 19 Jan 24

Amazing customer service, they had what I needed, super quick turnaround👏 highly recommended 👌

MICHAEL BELTON

11:08 19 Jan 24

GREAT SERVICE

Chris Meeks

11:03 03 Jan 24

First time customer, visited the store and had a friendly welcome. Got advised on what products I needed. Very happy with the service provided and the cost of the items.

Ella Harding

20:42 19 Dec 23

Eliza Parkin

20:41 19 Dec 23

Fantastic service by Mike and Reggie. Colour matched my kitchen perfectly. Thank you

Dani Dani

12:58 18 Dec 23

Good shop to buy things , very good products and good ppl on shop !

J GRANT

11:44 15 Dec 23

The product that I purchased did an excellent job. It arrived on time and I would definitely use these traders again.

Richard curd

16:08 14 Dec 23

5 stars that's all you can say about sealant supplies Ltd we are a small company and they are there to help .

Ivan Watton

13:06 14 Dec 23

I purchased some lead guttering repair sealant from Sealant Supplies Ltd and the on-line purchase was quick and easy. The delivery address was in Norther Ireand and I received the product 2 days later which was an excellent service. Will definitely us this company again and gladly recommend them.

Kris Treharne

16:28 01 Dec 23

Brilliant service and good deal 👍🏻Use them all the time.

Rhys Smith

08:51 23 Nov 23

Highly recommended for all your sealant and mastic requirements, reasonable priced and very helpful

Manchester Help

09:28 30 Oct 23

I found Sealant Supplies through an online search for ARBO sealant and was impressed with the range of competitively priced products on the website. The online ordering process is straightforward and the shipping time was quick - we will back to purchase more in the future.

Clive Goudercourt

11:32 27 Oct 23

This was my first visit to sealant supplies, here’s my review; The website is so easy to navigate, which, for me is good as I do sometimes struggle with them. I found there was a really good range of products and the prices are really good. I had done a bit of searching around on the net as I need a lot of product so want to get the best price I could get. After a couple of minutes I’d found what I wanted and added to my basket, went through the payment process and that was it, done.Delivery was actually a lot faster than I expected and the product was very well wrapped. I bought some expanding foam and, if you’re reading this you probably know the differences in quality of this kind of product. I did think that at the price it wouldn’t be the best, but my mind was put at rest when I used it. The foam is a really good quality product and absolutely perfect for the job I’m doing, which is restoring an old motorhome.To summarise, great website, well laid out, easy to navigate, secure payment options, super quick delivery and really well packed. Don’t think I could ask for more and I’ll certainly be using Sealant supplies again, what a great find.

margaret mcgeever

16:20 26 Oct 23

Excellent service knew what I need led and speedy delivery and great price. Thank you

michael coleman

14:49 26 Oct 23

Excellent service, fast delivery of good products

Rick Guy

10:56 13 Oct 23

paid for express delivery. was delivered 3 days later. had to source elsewhere as trades starting on site. when returning the item was charged a further 25% restocking fee. If they had sent on time I wouldnt have had an issue.

scott williams

13:48 11 Oct 23

Great service

Nick S

11:03 04 Oct 23

Excellent quick service.Thoroughly recommended.

Win Fix

10:53 03 Oct 23

Brilliant service, friendly bunch of good people always ready to help.Will definitely come back.Thanks Mike

No One

09:39 03 Oct 23

Cheapest around

ian stewart

00:42 29 Sep 23

Great company to deal with

David Ellis

11:11 28 Sep 23

Excellent service, first class customer service and also sales advice. Excellent range and customer care. Five stars from me

Manjit Singh

11:27 25 Sep 23

Top service

Lewis Hodge

08:35 14 Sep 23

Very helpful 👍 would use again.

frank saville

08:31 14 Sep 23

sean quinn

15:48 05 Sep 23

I’ve been waiting over two weeks for a delivery. I was promised next day delivery 5 days ago and still no sign. Won’t be using again.

Eric McQueen

17:45 30 Aug 23

Excellent service and prompt delivery. Definitely use this company again.

AG Fencing

12:30 30 Aug 23

Good communication, high quality products with competitive prices!

Tom

14:45 11 Aug 23

Great products, good prices and great communication!

Parbinder Singh

09:31 08 Aug 23

Good stock level and fast service.

John Oldham

18:05 27 Jul 23

Bought plasterers enhanced gritcoat from sealant supplies, this is a great prep grit before plastering, easy to spread and sets hard, got a great price from sealant supplies with speedy delivery.

googlenick 2

16:02 27 Jul 23

I needed my order in a rush and SSL were really helpful getting it despatched very quickly. Friendly and customer focussed, plus a good range of stock at competitive prices - highly recommended

roy atkinson

14:34 27 Jul 23

Brilliant silicone fast delivery will certainly recommend you to all trades i deal with

Simon Roberts

22:45 30 May 23

Great price and great communication. Products arrived in good time and perfect for the job, a fungicidal wash to help keep moss off the roof. Already recommended Sealant Supplies to a neighbour so we'll no doubt have the cleanest roofs in the area :-)

julie close

18:25 30 May 23

Excellent service. Very easy to order and purchase. Very helpful with my query on the phone.

Matt Dodman

14:18 19 Apr 23

Great product, great service with a competitive price and efficient delivery. I highly recommend Sealant Supplies!

Alan Gray

10:20 19 Apr 23

I ordered mastic online from Sealant Supplies and was very pleased with the product supplied. The delivery service service was very fast and cost was very competitive. I do use a lot of mastic from time to time on different projects and will certainly be using Sealant Supplies again for future orders.Thanks Alan

June Brook

08:26 05 Apr 23

I found exactly what I needed here and it was delivered quickly and well packaged. The grout and sealant I purchased was of very good quality and easy to use. I would have no hesitation in recommending this company and will purchase from them again in the future.

Eóin Dawson

15:33 14 Feb 23

Delivered exactly what I needed in a really timely manner all the way to N. Ireland, which a lot of companies seem to struggle with these days. The sealant was well packaged and arrived in perfect condition. Overall an inexpensive, hassle free experience.

Sarah Jackson

01:21 09 Feb 23

Could not get epoxy grouting from anywhere in Northern Ireland but I came across sealant supplies and they sent it in good time great price and well packed !!!!!just want to say thank you for a great service

Amanda Macdonald

12:02 24 Jan 23

Quick and easy order and delivery. Was actually surprised how quick they were at getting it delivered. We will definately use Sealant Supplies again. And recommend to my other clients Thanks

Stephen Hudson

19:12 15 Sep 22

Tried to obtain Wide Gap Joint Fill unsuccessfully all over the country without success but Sealant Supplies came up trumps! Not only did they have it in stock but the price was lower than prices I had seen elsewhere (and the othes couldn't deliver anyway as they were 'out of stock'). Not only that but delivery was extremely quick too. Good company first class service!

Simon

12:11 14 Sep 22

James and the team were great. Our block paved back patio, side path & driveway were a mess. Over 15 years old, full of moss & weed and badly discoloured by black & white lichen. I was on a budget so forced to completely jet wash, bleach, re-colour, re-sand & seal from scratch (or replace with tarmac costing £'000). Decided to use Bond It "Drive Alive" products including the new black & brindle colour enhancer and patio seal. Found "Sealant Supplies" online so ordered over the internet, paid by PayPal. Orders confirmed by reply email. Goods delivered within 3 working days. Great service from the guys. Project cost a little over £500 of which +£350 with Sealant Supplies. Much cheaper solution than replacement. Photos speak for themselves.Thanks, Sealant Supplies!

Paul Morris

07:01 03 Sep 22

Initially the items I ordered didn't turn up and when I contacted the team about this they were excellent, very apologetic and arranged for the items to be re-sent out straight away. Things do go wrong, probably with the delivery company, but the important thing is how they are dealt with when this happens and in this case the team at Sealant Supplies were brilliant. Many thanks to all involved in quickly resolving this for me.

Mohammed Esmail

16:06 02 Sep 22

I used Sealant Supplies (via Amazon) to purchase Resiblock Gloss Superior Block Paving Patio Sealer. The delivery time was on schedule and the price was cheaper than other distributers - thumbs up from me

Dave Meyrick

13:09 02 Sep 22

Brilliant prices, brilliant after sales service. I really wouldn't hesitate to use sealant supplies again for all my sealants and coatings. Easy to purchase what you require on line. Quick delivery time. Highly recommend sealant supplies.

Raymond Gregg

11:24 02 Sep 22

Spent a lot of time looking for the right colour of sealant with no real results until I stumbled across Sealant Supplies. I was able to match the colour I required with their color swatches and ordering was some painless via their website. Item was ordered and I was kept up to date as to when my item was despatched and it was delivered before the estimated delivery date even thought it had to be delivered to Northern Ireland. My first stop now for sealant will be Sealant Supplies. Excellent service, highly recommended.

Elaine Robins

08:37 26 Jul 22

Fantastic Company with just about possible colour Sealant you could ever want and a really wide range of products available.Both Mike & James are a wealth of knowledge and offer great customer service. Great Prices too!!Can't recommend highly enough.

Ardex A 125 Fine Coat Smoothing and Finishing Render 22kg

Data Sheets

Surface Preparation

Mixing

Application

Reviews

Related Products

Trade Account

Delivery Information

Bulk Orders

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