Zwaluw Den Braven Acrylic-W 310ml

Zwaluw Den Braven Acryl-W is a professional, water-based acrylic sealant for sealing expansion joints indoors and outdoors. This sealant retains its durable plasto-elastic properties and offers excellent adhesion to virtually all building materials. Ideal for neat finishing in both renovation and new-build projects.

What is Zwaluw Acryl-W used for?

Zwaluw Acryl-W is suitable for:

• Expansion joints between window frames and walls
• Joints between concrete and masonry
• Stairs, skirting boards and window sills
• Joints between walls and ceilings
• Indoor and outdoor applications (provided the weather is dry)

Key properties

• Remains durably plasto-elastic
• Excellent adhesion to most substrates
• Can be overpainted with water-based and synthetic paints
• Easy to apply and finish smoothly
• Suitable for indoor and outdoor use
• Low emission (EC1 Plus & A+ certified)

Technical specifications

Application advice

For optimal results:

1. Ensure the substrate is clean, dust- and grease-free
2. Remove loose parts and ensure a load-bearing substrate
3. For porous substrates, apply a primer (1 part Acryl-W / 2 parts water)
4. Apply the sealant evenly in the joint
5. Finish smoothly with water

Important:
The correct joint dimensions are essential:

• Up to 10 mm: ratio 1:1 (minimum 5 mm deep/wide)
• Wider than 10 mm: width ÷ 3 + 6 mm = joint depth

Tip:
Always finish joints neatly within the skin formation time to prevent cracking and irregularities.

Overpaintability

Zwaluw Acryl-W is excellently overpaintable after full curing.

• Suitable for water-based paint
• Suitable for synthetic paint
• Note: shrinkage may occur during drying, which can affect the paint layer

Limitations

• Not suitable for prolonged exposure to water
• Not suitable for substrates such as PE, PP, PTFE and bitumen
• For outdoor use only when dry for at least 5 hours

Shelf life

Good for up to 18 months in unopened packaging when stored between +5°C and +25°C.

	TECHNICAL DATA SHEET
	SAFETY DATA SHEET