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DuraPuds 615

Water repellent plinth render

For rendering on concrete, lightweight concrete, brickwork, and plastic-based foam insulation, EPS/XPS
Suitable for plinths below ground level
High strength
Water repellent and diffusion open
Very low capillary suction
Prevents moisture rising from the ground
Coat thickness 3 - 15 m

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Application

Surfaces

Concrete, foundation blocks, lightweight concrete, and lightweight blocks.
Plastic-based foam insulation of expanded polystyrene (EPS) and extruded polystyrene (XPS) with a cementious fibre-reinforced surface.

For further information, please contact our Technical Service Department.

Surface preparation

The background should be dimensionally stable and free from dust, loose mortar residues, grease, salts, fouling, and other contaminations.
If necessary to improve render bonding, use dry or wet sandblasting prior to further treatment.
For concrete, lightweight and foundation blocks, it is recommendable to apply a preparatory roughcast made of cement/sand in a 1:1 ratio.
Alternatively, apply a ribbed contact coat of Alfix Durapuds 830 facade adhesive. Drying time: approx. 24 hours.

How to use

Add approx. 3.0 litres of clean, cold water per 20 kg powder. Pour water into a clean container and sprinkle the powder in while stirring until a lump-free consistency is obtained. Use mixing drill or concrete mixer. Leave the mixture to rest for a few minutes and remix briefly before use.

Without reinforcement
Apply Alfix DuraPuds 615 plinth render in a coat thickness of up to 10 mm using straight steel trowel. Once set, work rendered plinth with a float to achieve a smooth and even surface finish.

Reinforcement with glass fibre mesh
Use Alfix DuraPuds 615 plinth render in the Alfix facade insulation system for rendering onto EPS or XPS insulation boards.

Apply as a 2-coat treatment:
On the first day, apply render with straight trowel in a 3-4 mm layer thickness. Embed the Alfix mesh 4x4 mm into the fresh render immediately.
At joints, embed mesh with 10 cm overlap. Position mesh by pressing gently into the wet render using the trowel.
Observe that mesh is placed at the surface top of the render coat.
On the second day, apply a new coat of Alfix DuraPuds 615 plinth render to full coverage in a 3-4 mm thickness. Once set, work rendered plinth with a float to achieve a smooth and even surface finish.

Note!
Do not add additional water to render which has begun to set.
Exterior work with plinth render should only take place in dry weather at temperatures between +5ºC and +25ºC, and not in direct sunlight.
If rainy weather or temperatures below +5ºC are forecast, cover facades.
Avoid exterior rendering during the winter season.

Cleaning

Clean residues from tools with water before the mortar sets. Cement-based products harden when mixed with water, hence do not dispose of excess material by pouring into drainage system.

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	Alfix A/S H.C. Ørsteds Vej 11-13 DK-6000 Kolding alfix.com 13	Declaration of performance No. 2	EN 998-1:2010 Alfix DuraPuds 615 For external and internal use on walls CS IV
Reaction to fire	A1	Thermal conductivity	λ10,dry ≤ 0,83 W/(m⋅K) for P=50% λ10,dry ≤ 0,93 W/(m⋅K) for P=90% (EN 1745 table)
Capillary water absorption	W2
Water vapour permeability μ	≤ 25
Adhesion	≥ 0,08 N/mm²	Durability	NPD

DuraPuds 615

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