Fosroc Dekguard S

SKU
ID25409
UN1263 (Class: 3, Pk Grp: III)
A single pack, solvent based acrylic protective and decorative coating for concrete and masonry at low temperatures.
Available in 10 Litres. Sold in stock colours, but can be tinted upon request.
From £359.90 £299.92
In stock
Only %1 left
Product Description

Fosroc Dekguard S is a single pack, solvent based aliphatic acrylic protective and decorative coating for concrete and masonry conforming to the requirements of BS EN 1504-2. Suitable for application down to low temperatures.

Best Uses

Fosroc Dekguard S is formulated to protect atmospherically exposed reinforced concrete structures from attack by acid gases, chloride ions, sulfates, oxygen and water. The product is also suitable to protect other cementitious substrates and masonry.

Dekguard S is suitable for use on all types of structures, especially those in aggressive marine and coastal environments. It is equally suitable for new and existing structures. Dekguard S is a component of Fosroc’s Renderoc system of concrete reinstatement.

  • Excellent barrier to carbon dioxide, chloride ions, sulfates, oxygen and water
  • Allows water vapour to escape from the structure
  • Highly UV-resistant: exceptional resistance to the effects of long-term weathering
  • Highly durable in all climatic conditions
  • Wide range of decorative colours
  • Excellent resistance to dirt pick-up
  • Suitable for application at low temperatures

Application of Dekguard S (or the diluted primer coat) should not proceed if the air or substrate temperature is 2°C and falling (at a steady 2°C, or 2°C and rising, application may commence). Dekguard S should not be applied at less than 3°C above the dew point or >85% RH, or where exposure to dust, rain or frost is likely within the drying time.

Application

Bare concrete and masonry
All surfaces should be dry and free from contamination such as oil, grease, loose particles, decayed matter, moss, algal growth, laitance, and all traces of mould release oils and curing compounds. For concrete surfaces, this is best achieved by suitable mechanical means. On other surfaces where moss, algae or similar growths have occurred, treatment with a proprietary biocide should be carried out.

If Nitobond AR has been used as a curing membrane over Renderoc patch repairs, it is not necessary to remove this prior to the application of Dekguard S. It is essential to produce an unbroken coating of Dekguard S. To ensure this is achieved, surfaces containing blowholes or similar areas of pitting should first be filled using Renderoc FC, a cementitious fairing coat. Depending on the thickness required, rougher substrates can be levelled using Renderoc ST05, a protective cementitious coating, or Renderoc RP252 cementitious reprofiling and protection mortar. All relevant data sheets must be referred to before commencing overcoating
of Renderoc products with Dekguard S.

Existing coatings
The Dekguard S system is formulated for application to clean, sound concrete or masonry. When applied over existing coatings or paints, the performance characteristics of Dekguard S may be impaired and its fire rating invalidated. Trial areas should be conducted to ensure compatibility and bond of Dekguard S to the existing coating, and also to validate retention of the bond between the underlying coating and the substrate after overcoating. Only after successful test panels are completed, should application proceed over large areas.

Dekguard S should not be applied over elastomeric coatings. The existing coating should be cleaned by high pressure water jetting and / or with a sponge and dilute detergent, then rinsed with clean water to remove all service contaminates and allowed to thoroughly dry. Any areas of flaking or crazing in the existing coating should be removed back to an area soundly bonded. Any bare concrete exposed should be prepared as described above.

Upon completion of preparation and validation testing, proceed with priming and Dekguard S application as described below.

In order to obtain the protective properties of the Dekguard S system, it is important that the correct rates of application and overcoating times are observed. Prior to use, Dekguard S tins should be thoroughly stirred to disperse any settlement. Where more than one batch of material is to be used, restrict use of the batch to whole separate elevations.

Any areas of glass and window frames should be masked. Plants, grass, joint sealants, asphalt and bitumen-painted areas should be protected during application.
All prepared substrates and existing coatings should be primed with a dilution of Dekguard S as follows. Using suitable volumetric containers, add 2 parts Dekguard S and 1 part Fosroc Solvent 102 by volume into a clean bucket. Mix with a paint stirrer until a uniform, thin consistency is obtained. Apply this priming coat to the prepared substrate (or existing coating) by brush or roller. The primer should be remixed periodically to re-disperse any settlement. Ensure any unused primer is stored in a sealed container. It is suggested that only sufficient primer to complete the upcoming day’s work is made up at a time.

Technical Details

Approvals

  • Dekguard S is suitable for principles 1.3, 2.2 and 8.2 as defined by BS EN 1504-2

Technical Info

Components: Single Pack
Type: Aliphatic Acrylic
Finish:
Stock Colours: White 00-E-55, Magnolia 08-B-15, Sandstone 08-B-17, Portland 00-A-01
Tintable: Yes, upon request. Please note, bespoke tints are non refundable / exchangeable
VOC Content: 520 g/L
Volume Solids: 44.5%
Suitable Substrates: Concrete and Masonry
Application Method: Brush, Roller or Airless Spray
Theoretical Coverage:
  • Priming layer: 0.1 litres per m2 (after dilution)
  • Dekguard S: 0.175 litres per m2
Wet Film Thickness (WFT): 175 microns per coat
Dry Film Thickness (DFT): 35 microns per/coat
Induction Time: -
Pot Life: -
Surface Dry: 30 minutes at 20°C
Overcoatable: After 6 hour minimum at 20°C
Fully Cured:
Cleaner / Thinner: Dekguard S should be removed from tools and equipment using Fosroc Solvent 102
Shelf Life: 18 months minimum in original unopened containers.
Packaging: Available in 10 Litres

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