High quality, heavily textured, highly flexible masonry paint with 1,600+ colours that is highly waterproof and will protect your building for up to 20 years.
Wethertex HBS Flex-Coat Hi-Build Coating is a high quality, heavily textured, flexible masonry paint available in 1,600+ colours, inc. RAL, RAL Design, BS, NCS & the new NCS 2050 colours.
Developed using advanced Optilife silicone technology, HBS offers outstanding breathability, is highly waterproof and will protect your building for up to 20 years.
Due to its extreme flexibility, this one coat masonry paint is the perfect solution for the renovation of areas that are uneven, badly weathered or that have developed small cracks.
| Application Tool | Roller or Trowel |
| Suitable Substrates | Existing well adhered paint coating, Render, Plaster, Building Board |
| Dilution | Maximum 2% clean water |
| Coverage | 2-3kg per m2 or 1.4-2.1m2 per litre |
| Application Temperature | 5℃ - 25℃ for a minimum of 24 hours |
| Humidity Temperature | Less than 85% |
Make good cracks and structural defects.
All surfaces must be clean, dry and free from algae, lichen & other growths. Wethertex C10 Multi-Surface Fungicidal Wash is ideal for treatting affected areas prior to the application of Wethertex HBS Flex-Coat Hi-Build Coating.
Any faults in the substrate/structure, particularly those that can lead to moisture penetration, must be rectified or can affect the finish quality.
Any existing crazed or flaking paint, dirt, grease or other surface contaminants should be removed.
For optimum performance apply to a substrate that has been primed with Wethertex ST1 Quick Dry Stabilising Primer.
Scaffolding must be independently tied to allow for uninterrupted application.
Stir the product thoroughly and do not contaminate.
For application by hawk and trowel apply to 1-2mm thick and texture using a High Build application roller such as Wethertex Textured Rollers, or other texturing rollers or tools. For spray application, prime all areas to be decorated.
For best results in terms of finish, coverage, speed of application and low over spray the following set up is recommended:
Use a GC 200/24 2HP compressor or larger that can continuously deliver a maximum of 80psi at 4-5 cubic feet per minute on a 3 metre (max) length air-line to the spray gun. A GC 330 hopper feed spray gun with a 3mm air cap and tip size of 3-4mm. Apply at 40psi air flow/ spraying pressure with an 18” (450mm) distance from gun tip to the surface being coated.
Cover areas not to be sprayed with masking tape and wet strength masking paper or film. Spray using a ‘cross hatch’ method, i.e. horizontally & vertically to achieve a full, uniform and even texture overall. Clean the tip and air cap frequently during use to prevent blocking.
Apply all products in accordance with BS 6150: 2006 Code of Practice for painting of buildings and BS 8000: Part 12: 1989 Code of Practice for decorative wall coverings and painting.
When stored unopened in a dry place at temperatures above 5ºC, shelf life is 12 months from the date of manufacture.
If you have any leftover product, ensure that you close the tin by replacing the lid firmly and securely and store in a safe place.
Protect from frost.
To avoid the risk of spillage, always store and transport in a secure upright position.
All equipment must be washed with clean, cold water immediately after use. Waste material should not be emptied in the drainage systems. Some local authorities have special facilities for the disposal of leftover paint. Please do not add any product into drains or watercourses.
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
 Malc lambert on 2024-03-30 09:31:19 | Question: Wethertex hi build is this a better textured coating than sandtex texture paint ..is it fairly easy to apply and can I get it in a cornish cream colour please ..many thanks malc ..(Southampton). |
Answer from Rawlins’ Technical Team: We do not stock Sandtex, but this is a good quality textured coating. It should be applied with the Wethertex Textured Rollers. This is available in a range of Wethertex colours, RAL, NCS or BS colours. | |
| Fiona on 2023-08-21 12:50:38 | Question: Will this product cover trowel marks on my exterior wall? |
Answer from Rawlins’ Technical Team: This product should cover trowel marks on your exterior wall, however it would be dependent on how deep these are and what trowel marks have been left. We have replied seperately to request more information. | |
| Andrew Batchelor on 2023-06-23 18:39:35 | Question: Hello, I have applied one coat using your textured roller but I can still see slight undulations on the wall, can I apply a second coat and would this help mask the undulations. |
Answer from Rawlins’ Technical Team: While this is a high build coating that can assist with covering small cracks or uneven areas, it cannot be used to fill areas. It will mirror the contours of the substrate, but the texture will assist with hiding it. | |
| Jones on 2022-11-25 18:20:27 | Question: Is this paint suitable for covering a currently un-painted pebble dash external wall? |
Answer from Rawlins’ Technical Team: Yes assuming the pebble dashed wall is clean, dry, sound and prepared as detailed in the technical data sheet this can be applied by hawk and trowel or with a Wethertex Textured Rollers For optimum performance apply to a substrate that has been primed with Wethertex ST1 Quick Dry Stabilising Primer. | |
| Watson on 2022-11-24 07:55:07 | Question: Our 1930's build property ( solid wall/ no cavity) had the old pebbledash render removed & a concrete based smooth render applied. The property has been painted with a good quality weather shield paint. Would this product be suitable to provide extra protection as water penetrates through to the internal wall in one small area around a door frame. |
Answer from Rawlins’ Technical Team: Yes this product is highly waterpoof and it can be applied to previously painted external walls. We would recommend a test for compatibility and adhesion on a small area prior to full application. The previously painted wall must be clean, dry, sound and prepared as detailed in the technical data sheet. For application and curing the temperature must be between 5 and 25°C. | |
| R Phipps on 2022-11-02 07:55:32 | Question: Hello, Can your product - HBS Flex-coat Hi-Build Coating - be used to provide an external finish for timber framed walls lined (externally) with cement board to provide a protected, weather/water proof finish. This is for a single story garage extension with a flat roof; the new external walls are lined with OSB, membrane and cement board to the outside face, the product would be applied to this board face. It is just the external finish to apply to complete the works for Building Control sign-off. R Phipps |
Answer from Rawlins’ Technical Team: This product can be applied to cement render boards, assuming they are clean, dry, sound and prepared as detailed in the technical data sheet. The whole surface of the boards must be be primed with Wethertex ST1 Quick Dry Stabilising Primer then the joints taped with a scrim tape prior to application. | |
| Mick Little on 2022-07-27 12:40:59 | Question: Can this be used for external lime render ? |
Answer from Rawlins’ Technical Team: Unfortunately no, this cannot be applied to a lime render. | |
| Steve on 2022-04-25 19:52:05 | Question: Hi, can this be applied directly with a roller? |
Answer from Rawlins’ Technical Team: This paint can be applied by spray application or hawk and trowel. When applied by hawk and trowel a Wethertex Textured Roller is used to add texture after application. | |
| Samuel on 2022-04-09 16:19:57 | Question: Will this product help prevent penetrating damp coming through a solid exterior wall? |
Answer from Rawlins’ Technical Team: Wethertex HBS Flex-Coat Hi-Build Coating is a high quality, heavily textured, highly flexible masonry paint that is highly waterproof and will protect your building for up to 20 years. If the penetrating damp is caused by the weather, this product would offer waterproofing from the elements. | |
| Emma on 2022-03-17 10:47:09 | Question: Hi. Is this suitable for insulated cladding exterior walls? |
Answer from Rawlins’ Technical Team: Thank you for the enquiry, we will need more information to assist with this enquiry, we have contacted you directly. | |
| Alison Dean on 2022-02-10 15:44:47 | Question: Can I use Wethertex HBS flex coat to paint over my render? Original cement render then 10 years ago coated with Everflex resin product. Looks tatty & needs refreshing. Surface is pretty sound. Thanks in advance. |
Answer from Rawlins’ Technical Team: The only Everflex systems we can reference are silicone based, so unfortunately no this would not be suitable. If you can provide more information regarding the full product name we can look further into this for you. | |
| Andy on 2022-01-10 16:04:55 | Question: I wish to use Wethertex HBS Flex-coat on rendered walls but not sure whether is krend or cement based. Is it one coat suitable? Many thanks. |
Answer from Rawlins’ Technical Team: This product can be applied to cement based render or k rend assuming it is clean, dry, sound and prepared as detailed in the technical data sheet. We would recommend priming first with Wethertex ST1 Quick Dry Stabilising Primer. | |
| Dave flaunty on 2021-10-31 07:54:36 | Question: Hi can this product be over painted at a later date should colour change be required |
Answer from Rawlins’ Technical Team: Assuming it is clean, dry and sound yes it can be over painted. We would recommend Wethertex AP77 Flexible Smooth Masonry Paint. | |
| Paul Swales on 2021-07-18 09:57:24 | Question: Morning. I was just looking at your products and wondered what coverage I would get out of 15kg please. I have a patio wall I want to cover which is approx 7sq metres |
Answer from Rawlins’ Technical Team: The coverage for this product is 2 to 3kg per m². For 7m² you will require approximately 2 x 15kg. | |
| Ian on 2021-07-14 13:14:02 | Question: Can this product be applied with a flicker. |
Answer from Rawlins’ Technical Team: No, the recommended application methods are by hawk and trowel, apply to 1-2mm thick and texture using a High Build application roller or spray application. | |
| Bill Turner on 2021-04-30 07:45:58 | Question: Hi, Can Wethertex HBS Flex-Coat Hi-Build Coating be used on a wall with K-rend on it. Thanks |
Answer from Rawlins’ Technical Team: Assuming the wall with K-Rend applied is clean, dry, sound and prepared as detailed in the Technical Data sheet, is then primed with Wethertex ST1 Quick Dry Stabilising Primer, Wethertex HBS Flex-Coat Hi-Build Coating can be use. | |
| Wynne on 2021-03-02 12:26:04 | Question: I live in a 1936 built house which has a pebble dash exterior. The wall seems stable but has a few fine cracks and I was hoping to cover this with a breathable water proof coating. Would Wether HBS Flex-Coat Hi Build coating be suitable. ? Also can this be applied without having to use a brush ? |
Answer from Rawlins’ Technical Team: Wethertex HBS Flex-Coat is a highly breathable, waterproof, high build exterior coating. It can be applied with a textured roller or hawk and trowel to obtain your desired textured finish. | |
| Richard on 2020-05-08 11:55:08 | Question: Hi. I would like to ask if Wethertex HBS Flex-Coat Hi-Build Coating would be suitable for my property. I have and old brick built house which in places has no cavity wall. The building has been rendered using a lime based render. I need to do some repairs to the render and then repaint. I was hoping that a textured paint would assist in hiding the repared areas, but I am concerned that the final finish needs to be breathable so as not to cause problems. Is this product suitable in these circumstances? Thanks |
Answer from Rawlins’ Technical Team: This cannot be applied over a lime render. It will adhere initially but it will start to blister after a short period of time. | |
| Lionel Owen on 2019-08-31 19:39:48 | Question: I have old (flakey in places)highly textured, high build paint on concrete render that I need to remove in order to apply another coat of smoother high build properly. What is the best way and easiest to remove high build please? Many thanks |
Answer from Rawlins’ Technical Team: You could try something like Thermoguard Thermostrip PRO to soften the existing coating for removal but ultimately we would assume it necessary to employ pressure washing, scraping, wire brushing, etc. to gain complete removal. | |
| Richard Measures on 2019-08-28 12:50:05 | Question: I have bare breezeblock to cover on a garage - will this product do the job? I'm looking for a rough finish rather than smooth |
Answer from Rawlins’ Technical Team: Yes, the breeze block should however first be primed with Wethertex ST1 Quick Dry Stabilising Primer. | |
| Peter Hilling on 2019-08-09 16:39:22 | Question: I want to apply Wethertex to a hollow block retaining garden wall, but my concern is that damp could come through the wall from the back and damage the Wethertex. My question - Is there a waterproof coating that can be used on the wall on to which I can then paint the Wethertex |
Answer from Rawlins’ Technical Team: Depending on the level of negative water pressure expected, something like Sikalastic 1K, followed by applicaiton of Wethertex HBS Flex-Coat Hi-Build Coating. | |
| John Riggs on 2019-04-22 13:06:03 | Question: Would OSB3 Board need any preparation before applying this product? Other than taping over joints and filling the fixing holes. It's to be used on the South-west (prevailing wind)side of a park home. |
Answer from Rawlins’ Technical Team: On OSB we recommend priming first with Wethertex ST1 Quick Dry Stabilising Primer and then using a plasterers scrim on the joints before applying the Wethertex HBS Flex-Coat Hi-Build Coating. | |
| Mark on 2019-03-22 16:02:12 | Question: Can you this product to paint over the outside walls (house)if they have been painted previously with waterproof paint . Thanks. |
Answer from Rawlins’ Technical Team: Wethertex HBS Flex-Coat Hi-Build Coating can be used over existing coatings however it does depend on which type has been applied. As we do not know this we would recommend a test area is applied to ascertain suitability and would advise the use of Wethertex ST1 Quick Dry Stabilising Primer also. | |
| Tim on 2019-03-13 18:58:42 | Question: Hi. Would this coating bridge butt joints in OSB3 clad walls without a bridging material? If no, what bridging material is available? |
Answer from Rawlins’ Technical Team: On OSB we recommend priming first with Wethertex ST1 Quick Dry Stabilising Primer and then using a plasterers scrim on the joints before applying the Wethertex HBS Flex-Coat Hi-Build Coating. | |
| Nicholas on 2019-01-22 13:05:24 | Question: Hi Is this paint, suitable for a garden wall surrounding our patio, which I’d made from blocks? |
Answer from Rawlins’ Technical Team: Wethertex HBS Flex-Coat Hi-Build Coating can be applied to blockwork, in this particular application the important factor would be to ensure no water/moisture is allowed to penetrate through the wall from behind the coating to cause issues. | |
| Lynne on 2018-11-13 19:20:15 | Question: I have been advised to use something called terrain paint to fix a problem with an area on my park home. Is this product similar? |
Answer from Rawlins’ Technical Team: We're not familiar with 'Terrain Paint' but Wethertex HBS Flex-Coat Hi-Build Coating is used extensively on park homes. | |
| Ross faulkner on 2018-10-13 14:48:37 | Question: Can it be painted straight on to cement boards |
Answer from Rawlins’ Technical Team: For optimum performance apply Wethertex ST1 Quick Dry Stabilising Primer to the substrate first. | |
| Chris on 2018-10-13 10:57:48 | Question: Hello,can this product be used on exterior ply board? It is for a chalet type home of timber construction. |
Answer from Rawlins’ Technical Team: On plywood we recommend priming first with Wethertex ST1 Quick Dry Stabilising Primer and then using a plasterers scrim on the joints before applying the Wethertex HBS Flex-Coat Hi-Build Coating. | |
| James on 2018-09-27 15:21:44 | Question: Can you get different colours or can you paint over it. |
Answer from Rawlins’ Technical Team: Wethertex HBS Flex-Coat Hi-Build Coating is only available in the colours listed but can be overcoated with Wethertex AP77 Flexible Smooth Masonry Paint if desired. | |
| Andrew on 2018-09-17 15:09:03 | Question: Hi there can you paint metal with this paint? |
Answer from Rawlins’ Technical Team: No, but we offer a range of finishes from Cromadex that offer a textured finish for metal surfaces, see HERE | |
| Brian Gant on 2018-06-30 07:40:24 | Question: How much coverage per tub on new. Smooth sand and cement rendering? |
Answer from Rawlins’ Technical Team: The coverage rate is 2-3kg per m² which means a 15kg tub will cover 5 - 7.5m². | |
| Wayne T on 2017-10-03 14:07:15 | Question: Hi I want to paint new ply outside with Wethertex HSB flex coat high build Would I need to prime the ply 1st if so what’s the primer to use? |
Answer from Rawlins’ Technical Team: On plywood we recommend priming first with Wethertex ST1 Quick Dry Stabilising Primer and then using a plasterers scrim on the joints before applying the Wethertex HBS Flex-Coat Hi-Build Coating. | |
Wethertex HBS Flex-Coat Hi-Build Coating is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
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