Wecryl 230
Manufacturer: WestWood Liquid Technologies
Materials: Poly Methyl Methacrylates (PMMA)
Wecryl R 230 comprises:
- Wecryl R 230 — a two-component polymethyl methacrylate waterproofing resin available in traffic grey (RAL 7043) pebble grey (RAL 7032) and White.
- Wecryl R 230 Thix — a thixotropic version of the standard resin, for use in detailing at upstands, corners, connections and other details, available in traffic grey (RAL 7043) pebble grey (RAL 7032) and White.
- Wecryl R 230 TT — a low-temperature installation version of the standard resin, with a modified cure system, to allow application between +25 and –15°C available in Traffic grey (RAL 7043) pebble grey (RAL 7032) and White.
- WestWood Fleece — a 1.10 kg·m–2 polyester fleece for use as a reinforcement.
- Wecryl 112 Primer — a primer based on a two-component fast-reactive polymethyl methacrylate resin, for the preparation of asphaltic and bituminous substrates.
- Wecryl 176 Primer — a primer based on a two-component fast-reactive and fast-curing polymethylmethacrylate resin, for the preparation of absorbent substrates such as concrete, screeds and timber.
Number: 14/5117
Issue date: 02/05/2025
Number: 16/0812
Issue date: 16/12/2016
Approved for use on
Flat Roofs Green Roofs Pitched Roofs Roof Gardens Zero Falls Buried Roofs
For use as a waterproofing system on flat and pitched roofs with limited access, including green roof and roof gardens
The system is also satisfactory for use on zero fall roofs with limited access on concrete substrates. The adhesion
to, and compatibility with, other substrates must be confirmed by test
Substrate
Concrete Reinforced Bituminous Membranes Single Ply Membranes - PVC Timber
on substrates of:
• concrete
• bitumen
• timber
• metal
• plastic
Surface Temperature Application
Durability
30 Years
Wecryl R 230 will achieve a service life in excess of 30 years.
Installation Requirements
The system should only be installed by installers who have been trained and approved by the Certificate holder.
Puncture Resistance
P1 - non accessible
Most Compressible Substrate (eg insulation)
P3 - accessible for maintenance of plant and equipment and to pedestrian traffic
Least compressible (eg concrete)
Fire Safety
In the opinion of the BBA, a system comprising a 12 mm thick gypsum glassrock roof board, primed with Wecryl 276 Primer and coated with Wecryl R 230 (grey) reinforced with WestWood Fleece, can be classified as BROOF(t4) in accordance with BS EN 13501-5 : 2005.
In the opinion of the BBA, a roof garden incorporating the system covered with a drainage layer of gravel 100 mm thick and a soil layer a minimum of 300 mm thick, will be designated as BROOF(t4).
In the opinion of the BBA, when the system is used in irrigated roof gardens its use will be unrestricted under the requirements of the national Building Regulations.
If allowed to dry, plants used in a roof garden may allow flame spread across the roof. This should be taken into consideration when selecting suitable plants.
The designation of other specifications should be confirmed by: England and Wales — test or assessment in accordance with Approved Document B, Appendix A, clause A1, Scotland — test to conform to Mandatory Standard 2.8, clause 2.8.1(1)(2)
(1) Technical Handbook (Domestic).
(2) Technical Handbook (Non-Domestic).
Northern Ireland — test or assessment by a UKAS-accredited laboratory, or an independent consultant with appropriate experience.
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Downloads
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ETA 16/0812
Document class :
Document type : File
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Wecryl 230 BBA Version 7
Document class :
Document type : Link
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WestWood Liquid Technologies
31 Morris Road
Nuffield Industrial Estate
Poole BH17 0GG
United Kingdom