One Coat Dash Cover (OCDC) (EWI-065) - 25kg | EWI Store

One Coat Dash Cover (OCDC) (EWI-065) – 25kg

Brand:EWI Pro

Rated 4.60 out of 5

(5 customer reviews)

£16.58 Excl. VAT

Quantity Price (Excl. VAT)
1 - 9 £16.58
10 - 39 £14.92
40+ £11.61

One Coat Dash Cover is the perfect solution for covering over pebbledash without the hassle of removing it. Durable and vapour permeable, the basecoat can be machine-applied up to 25mm thick in one pass, effectively masking the pebbledash.

  • Breathable
  • Lightweight
  • Flexible
  • Covers over pebbledash in two passes
  • up to 25mm thick in one pass (if machine applied)
SKU: EWI-065

EWI-065 One Coat Dash Cover (OCDC)

Do you live in a pebbledash property? Bored of it looking tired and dated? Can’t afford to remove the pebbledash? Our One Coat Dash Cover (OCDC) is the perfect solution to cover up old pebbledash and give your property a modern look.

OCDC is a breathable, lightweight and flexible solution to covering over pebbledash. OCDC can be applied up to 25mm thick in one pass and once dry provides a perfectly flat surface ready to render or paint. This product has a high air content and excellent tensile strength, providing a stable and durable base while allowing trapped moisture within the underlying pebbledash to escape. The finished result is a completely transformed and updated property!


The One Coat Dash Cover comes as a dry mix in 25kg bags. The bag needs to be mixed with 6.3 litres of clean potable water using an electric paddle mix. It is recommended the basecoat is mixed for 2-3 minutes to achieve the required consistency. OCDC is then ready for use. When hardened, the product should not be re-mixed with fresh material.


Before application, ensure that the pebbledash substrate is stable. Any loose pebbles should be removed, and the pebbledash should be primed using EWI-310 Universal Primer.

The OCDC can be applied up to 25mm thick in one pass, up to a maximum thickness of 50mm if applying more than one pass. The basecoat should be applied to the substrate using a plastering trowel or spray machine, and a Fibreglass Mesh should be embedded within it. We recommend the use of our Orange Fibreglass Mesh for thick-coat plasters and renders. OCDC can be applied in either a single pass or multiple layers, depending on how much is required to cover over the pebbledash.

Once set, you can choose to apply either paint or render finish!

One Coat Dash Cover Application conditions

  • Substrate primer: EWI- 301 or EWI-310 if a key is required.
  • Application temperature (air, substrate, materials): from +5°C to +25°C
  • Water mix proportions: approx. 6.3 litres of water per 25 kg of dry mix
  • Time of usability after mixing with water: approx. 2 hours (temp. +20°C)
  • At 5mm thick, 25kg of OCDC will cover approximately 4.5m²

One Coat Dash Cover Storage conditions

Comes in powder form in a 25kg paper bag.

Store in a cool, dry place. Avoid ingress of water. Shelf life: up to 12 months from the date of manufacture.

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5 reviews for One Coat Dash Cover (OCDC) (EWI-065) – 25kg

  1. Rated 5 out of 5

    Lawrence Conrad

    Flows really well and sets in a good time. Very reasonably priced also

  2. Rated 5 out of 5

    Sam Christie

    This stuff is awesome. Bought a house in April with pebbledash and both me and the wife thought it look really dated, but covered it in the OCDC and although a bit tricky to get it dead flat (had to do it in two coats), once all dried it looked the business. We then painted this and the house looks brand new. Would definately recommend

  3. Rated 5 out of 5

    Sara Dreher

    SO impressed. Thought I was going to have to get the pebbledash removed, but was relieved to find this product. Will definitely recommend to others.

  4. Rated 3 out of 5

    S Smith

    Worked well, but needed more bags than advertised to get it flat so turned out more expensive than we would of liked.

  5. Rated 5 out of 5


    I bought this to cover our pebbledash garage to ensure our toddler didn’t tear her face off as she ran past it. It was easy enough to mix and apply. The site says 5L of water per 25kg bag, but the bag itself says 6.1L per bag. When mixing I’d say add the majority of OCDC but keep some back in case you make it too wet. I mixed half a bag each time. I’d also say lay it on thick if going over pebbledash so when you trowel over it doesn’t catch the stones so often. 4 1/2 bags covered about 17sqm so coverage is slightly less than advertised, good job I bought a spare bag. Postage is a bit steep at £25 too.

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