Würth Painter's Acylic Filler

High-quality acrylic sealant for window sealing inside and other internal and external expansion joints

The sealant can be coated/plastered, excellent adhesion to most common paints and brushes

Due to the wide variety of paint and lacquer formulas available, we recommend that you always carry out preliminary testing in order to rule out any interactions.

Caution: Sealant joints that have been fully painted over tend to crack when movement occurs in the joint, as the applied paint is generally less elastic than the sealant.

• Highly elastic
• Broad adhesive range on a range of standard construction surfaces
• Building material class B2 according to DIN 4102
• Silicone-free
• Resistant to ageing, weathering and UV
• Odourless

Our products featuring the EMICODE label are low emission/environmentally compatible. The EMICODE classification system awards labels to construction products that comply with the very stringent health and environmental requirements of recognised institutes.

Notice

Not suitable for use in building construction joints in accordance with DIN 18540. Due to the wide variety of paint and lacquer formulas available, we recommend that you always carry out preliminary testing in order to rule out any interactions.

Caution: Sealant joints that have been fully painted over tend to crack when movement occurs in the joint, as the applied paint is generally less elastic than the sealant.

The setting speed is dependent on the application temperature, the weather and the surface moisture. The speed is greatly delayed in cold, damp weather. Discolouration may occur in wood containing tannic acid.

For vertical joints, please observe the run-off behaviour of the sealant. May cause corrosion on metals such as steel, copper and zinc-plated surfaces.

Standing water should be prevented in the acrylic joint as this can lead to erosion.

Acrylic is very unstable in terms of water absorption and release. Since the diffusion behaviour also changes as a result of the differences in water adsorption in the material, neither the water vapour diffusion resistance (μ) nor the diffusion-equivalent air layer thickness (SD) can be measured on this material in accordance with DIN EN 12572. The value of 5,000 is the average value obtained through testing.

Do not use in applications involving contact with pre-compressed sealing tapes.

Paint acrylic is not suitable for adhesive bonding or filling cavities. Due to the large number of varnish and glazing formulations available, especially on alkyd resin paints and powder-coated aluminium, always carry out your own tests on the area first.

Tested in accordance with EN 15651 Part 1

• Fire behaviour: Class E
• Stability under load: ≤ 3 mm
• Volume loss: ≤ 25 %
• Tensile behaviour after immersion in water (at 23°C), ductile: ≥ 100 %
• Durability: Passed

EMICODE EC1plus: Very low emissions: The EMICODE classification system distinguishes the environmental and health compatibility of construction products. The lowest-emission products bear the EC1plus mark.

Container

Cartridge

Contents

310 ml

Fungicidal properties

No

Colour

White

Chemical basis

Acrylic resin dispersion

Density

1.5 g/cm³

Continuous motion absorption

20 %

Smell/fragrance

Characteristic

Full curing speed

1 mm/d

Fully hardening/curing conditions

23°C and 50% relative humidity

Min. skin-formation time

10 min

Min. breaking elongation

500 %

Breaking elongation conditions

for 2-mm film

Conditions for skin-formation time

at 23°C and 50% relative humidity

Shore A hardness

10

Min./max. temperature resistance

-20 to 80 °C

Min./max. processing temperature

5 to 40 °C

Recoatable/Can be painted over

Yes

Water-vapour diffusion resistance factor value µ

24000

Surface pre-treatment required

On absorbent or porous surfaces

Mixing ratio

Mixing ratio of painters acrylic to water = 1:5 to 1:10

Ultraviolet resistance

Yes

Coating compatibility

Yes

Shelf life from production

24 Month

Conditions to maintain shelf life from production

at min. -15°C, slow defrosting time

Sustainability

Low-emission/low-pollution

• Technical Data Sheet
• Declaration of Performance
• Safety Data Sheet

Application area

Expansion joints indoors and outdoors. In the window sealing system: Painter's acrylic inner seal and windows and façade-tight outer seal.

Instructions

Adhesion surfaces must be clean, dry and firm. Priming improves adhesion to porous and highly absorbent substrates.

Please observe the "General Notes on Application for Sealants" overview sheet.

For more information, please refer to the technical data sheet.