

Rowebb are the main Scottish stockists of Kilwaughter Chemical Co Ltd's K-Rend range of polymer cement renders, including Dash Receivers, Scrape and Roughcast Finishes and Sprayed Finishes to be used in conjunction with K-Rend Base Coats. See our colour range below. Additional sundries are available to complete your application.

Kilwaughter were established in 1939 and operate from Larne in Nothern Ireland, where they have grown to be a market leader in pre-bagged render technology.
A key feature of their product development has been the introduction of silicone water repellent technology in their render range. The silicone technology imparts a high degree of water repellency to the render surface whilst allowing water vapour to pass through the render and let the substrate breathe.
Added to this, the inclusion of an algae inhibitor and these silicone based renders are at the forefront of render technology.
All K-Rend products are IS0 9001 approved and are part of the Kitemark BS EN998:2003






















All base coats are IS0 9001 approved and conform to BS 5262 Type II, with the exception of High Polymer base coats, which are highly modified specialist products.





This is a basic pre-blended sand and cement base coat. Used as an internal pargetting render and for basic external base coat applications.
Approx Coverage 14-18kg/m²nominal 8-10mm thickness (approx 1.5m² per bag)
| Typical Substrates | Base Coat |
| Aerated Lightweight block | HPX and scrim @ 6mm |
| Standard 7n concrete block | UF Base Coat @ 8-10mm |
| Standard clay common brick | HP12 @ 6mm or HPX @ 4mm |
| Standard concrete common brick | UF Base Coat @ 8mm |
| Plywood | Rendalath with UF Fibre Base Coat @ 10-14mm |
| Cement Particle Board | HPX & Scrim @ 4-6mm |
| Sandstone | Scrim and pin & HP12 @ 6-8mm |
| Precast concrete blocks | HP12 & Scrim @ 6mm |
| Shuttered Concrete | HP12 & Scrim @ 6mm |
| Existing Drydash | Fungicidal Wash, GP Backing Coat to block out and R7 Acrylic / SBR |
| Painted Render | HP12 Scrim and pin @ 4-6mm |

Silicone Overdash Receiver (spray or hand applied) 20kg bag
A lightweight dash receiver for general drydash applications. It includes silicone and an algae inhibitor to improve water repellence and reduce and algae and mildew growth. It has excellent coverage rates, is available in the full K Rend colour palette and is the chosen product for the professional applicator. Download our Dash Receiver information leaflet.
Apply 8-10mm thick
Approx Coverage:
4-5kg/m² nominal 4-5mm thickness (as used in roughcast wetdash finish) approx 5m² per bag
8-10kg/m² nominal 8-10mm thickness approx 2.5 m² per bag

Silicone WP and Com-Rend are IS0 9001 approved with Com-Rend also having BBA Certification. Both conform to BS 5262 Type II. All textured finishes are available in both fine and coarse texture grades.
Smooth/Flat Render Our general method for obtaining a smooth or flat render is to use Silicone FT Fine Tex Scratch Render. This can be trowelled and floated and left smooth, although we would always advise that it be textured to remove blemishes and any lime bloom. The preferred option is to apply UF Base Coat to a full render thickness and then to float or scratch this render. Additionally, the fine grading of this material leads to a very fine textured render that is ideally suited for a JUB paint final coat in your desired colour. Download our Scrape & Roughcast information leaflet.

Silicone WP - Standard Texture is a coarse scratch render. Applied by hand over an approved base coat to a thickness of 10-12mm thick and then textured as required, or in 1 coat in 2 passes to a full thickness of 20mm and then textured. The finished render will leave a broken stone open texture with a full through render colour. With the inclusion of silicone and an algae inhibitor, these renders have improved water repellence and resistance to algae growth. These renders are available in the full K Rend colour range.
Approx Coverage: 20-24kg/m² approx nominal 16-18mm thickness
1m² per bag as single coat or 1.2m ² per bag over base coat

Silicone FT is a fine scratch render. As above but with a more closed surface textured finish. Coverage as Silicone WP
Approx Coverage: 20-24kg/m² approx nominal 16-18mm thickness
1m² per bag as single coat or 1.2m ² per bag over base coat


All sprayed renders are IS0 9001 approved and conform to BS 5262 Type II.



A hand or machine applied scratch render. A polymer enhanced render with algae inhibitor, this render provides a cost effective scratch render finish. Available in 8 colours only.
Approx Coverage: 26-32kg/m² approx nominal 16-20mm thickness



