ZWALUW DEN BRAVEN 210155 closed-cell PE foam backfilling grey 84 m x 50 mm - 30880232

Name: ZWALUW DEN BRAVEN 210155 closed-cell PE foam backfilling grey 84 m x 50 mm - 30880232
Brand: ZWALUW
SKU: 08076888
Price: 88.8 EUR
Availability: PreOrder

Supplier number: ZWALUW 30880232 | EAN 8711595072854

88.80 tax incl.

€73.39 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

roll

Delivery by DHL

✆ Talk to a specialist

Reliable joint depth by Zwaluw

Practical benefits

Prevents three-sided adhesion: You ensure the ideal joint dimensions to prevent three-sided adhesion, allowing your sealant to move and flex naturally.
Water-resistant closed-cell foam: The closed-cell PE foam will not absorb water, letting you use it safely in applications exposed to high moisture.
Generous 84 m roll: With an 84 m continuous roll and a 50 mm diameter, you fill wide expansion joints quickly and efficiently.

In a nutshell

The right choise for

With the Zwaluw 210155 pe backer rod, you effortlessly achieve the correct joint depth in wide joints across facades, floors, and concrete structures. This closed-cell foam prevents three-sided adhesion, allowing your elastic sealant to expand and contract freely for long-lasting performance. Because the pe material is water resistant and absorbs no moisture, you can rely on it in demanding indoor and outdoor applications. The generous 84m roll with a 50mm diameter fills expansion joints around 40mm quickly and without interruption, helping you save on sealant consumption while delivering professional results.

Product information FAQ

€88.80

tax incl.

Key features according to our expert

Width: 50 mm
Roll length: 84 m
Material: PE
Thickness: 50 mm

Product description:

Back padding made of PE foam for achieving the correct joint depth-to-width ratio

Advantages:

Backfilling for joints between building materials
Available in various diameters, from Ø 6 to 50 mm
Prevents three-point sealant adhesion
Water-resistant
Applicable in places with high water and/or mechanical loads

Areas of application:

Zwaluw Backfill should be used in construction and expansion joints to achieve correct joint dimensions and prevent three-point adhesion of the sealant.
Ensure that the width of the joint is in accordance with the movement capacity of used Zwaluw sealant. How to calculate a correct joint dimension can be read on our website or by contacting us for correct advice.
Joint depth can be calculated using the following formula: Joint depth = (Joint width, divided by 3) + 6.
Make sure that the diameter of the PU Zwaluw Backfill is 50% larger than the width of the joint between the two substrates. If the joint is 20 mm, the diameter of the Zwaluw Backfill should be Ø30 mm. For PE Zwaluw Backfill, the diameter should be 25% larger than the width of the joint.

All Features

Width: 50 mm
Roll length: 84 m
Material: PE
Thickness: 50 mm
Colour: Grey
Length: 84 m
Diameter: 50 mm
Packaging: Role

Brand ZWALUW
08076888
EAN 8711595072854
Supplier number ZWALUW 30880232

Frequently asked questions about this product

Answered by specialists

What is this backer rod used for?: You use it to establish the correct joint depth and prevent three-sided adhesion of sealants.
What are the dimensions of this roll?: The roll has a total length of 84 m and a diameter of 50 mm.
Which joint width is this 50 mm diameter suitable for?: The PE backer rod diameter should be 25% larger than the joint width, making it suitable for 40 mm wide joints.
Is this material water resistant?: Yes, thanks to its closed-cell structure, the PE foam is water resistant and suitable for high-stress applications.