Parex
Parex (Sikawall 580) Monorex GM G20 Off White 25kg
Parex (Sikawall 580) Monorex GM G20 Off White 25kg
SKU:BM006990
inc. vat
ex. vat
inc. vat
ex. vat
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Parex (Sikawall 580) Monorex GM G20 Off White 25kg
High‑Performance External Render for Trade & DIY
Parex Monorex GM is a professional‑grade, through‑coloured render for vertical masonry and concrete. The one‑coat system delivers a durable, breathable, colour‑consistent finish with no need for painting. Ideal for new builds, extensions, and refurbishments, it offers multiple textures (scraped, spray-textured, smoothed) and a full range of colours to suit both traditional and contemporary designs.
Key Features & Benefits
- Through‑coloured — colour runs through the render; no painting required
- One‑coat application — saves time and labour
- Weather‑resistant & breathable — built for UK conditions
- Hand or machine applied — suitable for diesel/electric spray machines
- Versatile finishes — scraped, spray‑textured (tyrolean to roughcast), or smoothed
- Granulometry — 0–2.5 mm (finish dependent)
- Certifications — EN 998‑1 (OC CS II / W2), Reaction to Fire: A1, BBA Certificate No. 21/5888
Use Cases
- Exterior walls on houses, extensions, garages, and garden rooms
- Refurbishment of tired or failed render
- New build facades needing a quick, long‑lasting decorative finish
- Commercial and residential projects requiring reliable, colour‑consistent results
Technical & Product Details
| Bag size | 25 kg |
| Pallet contents | 40 bags (≈1 tonne) |
| Coverage (guidance) |
|
| Water addition (per bag) | 5.2–6.3 L |
| Maximum grain size | 0–2.5 mm |
| Compressive strength | Class CS II (EN 998‑1) |
| Capillary water absorption | Class W2 (EN 998‑1) |
| Reaction to fire | A1 (EN 13501‑1) |
| Shelf life | 12 months from manufacture (unopened) |
| Storage | Store dry, off the ground, protected from frost; keep bags sealed until use |
Substrate Compatibility & Prep
- Suitable on sound, clean blockwork, brick, masonry and cast concrete
- Highly porous backgrounds may require a suction‑control/bonding primer (e.g. Parex Micro Gobetis 3000 or equivalent)
- Not for gypsum‑based backgrounds or previously painted/sealed substrates unless correctly treated
Application Conditions
- Apply between +5 °C and +30 °C
- Avoid direct sun, rain, high winds and frost
- Do not apply to frozen/damp substrates or when frost is expected within 24 hours
- For high‑exposure/coastal areas, use increased thickness as per the application guide
- For consistent colour across elevations, use the same batch number where possible
Supporting Resources
- Technical Data Sheet (Sika)
- Manufacturer Product Page
- NSAI Agrément (Ireland)
- BBA Certificate No. 21/5888 (see approvals on Sika page)
Always follow the manufacturer’s guidance on preparation, mixing and curing. Test a small area if in doubt.
| Delivery Charges | |
|---|---|
| Order Value | Delivery Charge |
| Up to £1000.00 | £49.00 |
| Orders over £1000.00 | Free Delivery |
| Parcel Delivery Charges | |
|---|---|
| Order Value | Delivery Charge |
| Up to 50 kg | £25.00 |
| Collections |
|---|
| To collect your order, please email us at sales@rendersdirect.co.uk with your contact details, along with the products and quantities you require. Our team will review your email and respond with a secure payment link. For your security, we do not process payments over the phone. Once payment is received, your order will be processed, and our team will notify you when it’s ready for collection. |
- Standard delivery - Up to 5 working days.
- We process orders the same day.
- Delivery charges will automatically be calculated within the checkout process.
- Orders are only processed for delivery between 8.00am - 5.00pm Monday to Friday excluding bank holidays.
- Moffett offload will be used for large bulky deliveries and only when agreed with you.
- Please advise of any access issues on ordering.
- Delivery is Kerbside only.
- In the unlikely event that your delivery is not correct or damaged please notify us immediately and mark any issues on the delivery slip.
Where We Deliver
- We have a fleet of FORS delivery vehicles all with Moffett mechanical off loads that deliver nationwide. Sometimes we may use 3rd party carriers for smaller orders.
Product Delivery Times
- The vast majority of our orders are dispatched within 2 - 5 working days, this can however be up to 4 working days, please contact us if you require something urgent.
- Speciality items may take up to 21 working days.
- We will contact you with in 24/48hrs of your order been placed to confirm delivery times and dates.
Customer Reviews
Needed render for a rush job, ordered online and the full order was with me 2 days later. Great contact from the haulage firm and very helpful driver. 1 st class service from the beginning to the end. 10 out of 10
Great service from order to delivery one of the best customer service I have received in many years and definitely since Covid. All companies should take a page from their book.
Good value, fast (and prompt) delivery. Excellent delivery driver positioned all goods out of the way (which was very much appreciated)
The finish looked great and and I don’t have to paint it.
Easy to apply with roller, gives good key to render
Great stuff easy to apply by hand
