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DuraPuds 650 rapid

Rapid-hardening repair and levelling render

For rendering walls made of brick, concrete and LECA concrete
For use as a substrate for finishing render or as a top surface
For interior and exterior use
Rapid-hardening – ready in 3 hours
Diffusion open
Low waste
Layer thickness 3–50 mm
Ideal for embedding cables, connection boxes, flush mount housings, etc.
Ideal for filling channels/recesses for electrical installations, etc.

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Product information

Application

Surfaces

Brick and concrete.
Contact our Service-technical department for additional details.

Surface preparation

The substrate must be structurally sound and free from dust, loose mortar residue, paint, grease, salts,
vegetation and other substances that may impede adhesion.
Depending on the nature of the substrate, it may be necessary to prepare it with wet or dry sand blasting.
Strongly absorbent surfaces must be primed with Alfix PlaneMixPrimer.

How to use

Mix the contents of one 20 kg sack with 2.5–3.5 litres of clean, cold water. Pour the water into a clean
container and add the powder gradually while stirring strongly to produce a smooth, lump-free paste.
Use an electric drill fitted with a mixing hook or a forced action mixer. Stir the render again after a few
minutes and it is then ready for use.

Use a trowel/smooth steel board float to apply Alfix DuraPuds 650 rapid in layers of up to 50 mm each.
For large areas, apply the product in layer thicknesses of up to 50 mm in several passes.
When applying in layer thicknesses of more than 50 mm on a brick or concrete substrate, add up to 20%
kiln-dried quartz sand with a grain size of 0-2 mm.

The coverage area of DuraPuds 650 rapid can generally also be extended by adding up to
20% kiln-dried sand.

Level the render using a straight edge and/or a float to create a finished surface within 30–60 min. at +20ºC.
Drying time between the individual layers: Approx. 3 hours at +20ºC.
Do not start on larger areas than it is possible to complete within the stated working time.

NB!
Do not add extra water to render that has already begun to set.
When rendering walls made of foundation blocks, start by applying a rough cast in a 1:1 sand/cement mix.
Drying time: Approx. 1 day.

Render should only be applied to aerated concrete in layers of ≤10 mm and on small areas up to approx. 1 m².
When applying thicker layers of up to 20 mm, add kiln-dried quartz sand with a grain size of 0–2 mm.
Alfix DuraPuds 650 rapid can also be used for embedding cables, fixtures, connection boxes, flush mount
housings, etc. in walls.

Outdoor rendering work should only be performed in dry weather at temperatures of between +5ºC and
+25ºC, and not in direct sunlight.
Façades must be covered if there is a risk of rain or temperatures lower than +5ºC.
It is not recommended to attempt outdoor rendering in the winter months.

Cleaning

Use water to clean Alfix DuraPuds 650 rapid residue off tools, etc. before it sets. Cement-based products
harden when submerged in water, so never flush left-over product into the sewer system.

Downloads

	Alfix A/S H.C. Ørsteds Vej 11-13 DK-6000 Kolding alfix.com 22	Ydeevnedeklaration nr. 52	EN 998-1:2010 Alfix DuraPuds 650 rapid Mineralsk puds CS IV
Brandklasse	A1	Varmeledningsevne	λ10,dry ≤ 0,83 W/(m⋅K) for P=50% λ10,dry ≤ 0,93 W/(m⋅K) for P=90% (tabelværdier efter EN 1745)
Vandabsorption	NPD
Diffusionsmodstands-faktor µ	≤ 25
Vedhæftning på beton	≥ 0,08 N/mm²	Holdbarhed / frostresistens	NPD

DuraPuds 650 rapid

Product

Coverage

Packaging

Precautions

Technical data

Surfaces

Surface preparation

How to use

Cleaning

Guidance

Downloads

Product info

Sustainable Building

Material Safety Data Sheet