Your Cart

Ceresit CT42 Acrylic Paint Masonry ǀ 15 litre bucket

Ceresit CT42 Acrylic Paint Masonry - 15 litre bucket - 50m2
Ceresit CT42 Acrylic Paint Masonry ǀ 15 litre bucket
  • BBA Certificate No. 14/5142
  • Assumed consumption: average approx. 0.3 l/m2 with two coatings
  • Approximate coverage per one bucket - 50m2
  • Temperature of application: from +5 °C to +25 °C
  • Resistance to rain: after approx. 24 h
Estimated delivery:
In Stock
£ 177.40
Ex VAT: £ 147.83
  • Brand: Ceresit®
  • Model: CT42 EWI
  • Weight: 15.00kg
  • Product code: P1-403

Options available

Ceresit CT42 is a waterproof, highly breathable, fast-drying Acrylic Masonry Paint used for protecting external walls and concrete constructions.

This functional paint can be used indoor and outdoor on concrete, cement plasters, lime-cement and mineral substrates.

Very efficient paint, one bucket coverage is 50m2, depending on the smoothness and absorption of the substrate (average approx. 0.3 l/m2 with two coatings).

The facades covered with the paint CT42 can be washed with washing devices operating under low pressure. 

Ceresit CT42 BioProtect formula gives effective and durable protection of the façade from biological contamination, e.g. fungi, mould, and algae. 

Due to special capsules with biocide agent, release of substances is under control and ensures long lasting effect


Key Points:

 · Damage resistant

 · Low water absorption

 · Resistant to weather conditions

 · Very efficient paint (50m2 - 15l bucket)

 · BioProtect formula - resistant to the development of fungi, algae and mould

 · Available in full palette of Ceresit Colours of Nature and RAL Colors



Ceresit CT42 is used for protecting facades, concrete constructions, interiors.

CT42 can be used for painting Ceresit CT34, CT35 and CT137 mineral plasters and Ceresit CT 60 Acrylic.

Acrylic plasters applied on traditional substrates and within Insulated Render Systems.

The exposure of the facade to the sun causes dangerous tensions, therefore dark colours should be used only on small areas, e.g. architectural details. 



 · Skin and eyes should be protected.

 · Stains should be carefully rinsed with water. 

 · This product should be stored out of reach of children. 

 · Protective gloves and glasses should be worn while applying the paint.

 · In case of contact with eyes, they should be rinsed with water and the general practitioner should be consulted.

 · Application should be performed in dry conditions with the ambient and substrate temperature ranging from +5 °C to +25 °C and the humidity below 80 %. 

 · The paint may cause decolouration impossible to be removed on glass, ceramic, wooden, metal and stone surfaces, therefore all the elements in contact with CT42 should be protected. 

 · The performance characteristics are given in the text of corresponding to the product Declaration of Performance

 · Do not sprinkle paint with water!


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet 


*Special Product - Non returnable cancelable.

Board covarage 50.00 m2
Colour 200+ available
Consistancy Liquid - Fluid
Material Acrylic Paint
Shelf Life 12 months
Application Temperature from +5 °C to +25 °C
Shipping method Rigid Vehicle / Courier
Applications Concrete, Cement & Mineral substrates
ETA Notification YES

Write a review

Note: HTML is not translated!
Bad Good

We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
Ceresit CT42 Acrylic Paint Masonry - 15 litre bucket - 50m2
Ceresit CT42 Acrylic Paint Masonry ǀ 15 litre bucket
£ 177.40