ZWALUW DEN BRAVEN 210152 closed-cell PE foam backfilling grey 80 m x 30 mm - 30880233

Name: ZWALUW DEN BRAVEN 210152 closed-cell PE foam backfilling grey 80 m x 30 mm - 30880233
Brand: ZWALUW
SKU: 08076886
Price: 28.8 EUR
Availability: PreOrder

Supplier number: ZWALUW 30880233 | EAN 8711595072830

28.80 tax incl.

€23.80 excl. VAT (incl. all environmental contributions)

On order: delivered from 09/10/2026

roll

Delivery by DHL

✆ Talk to a specialist

Ideal backing for joint sealing

Practical benefits

Prevents harmful three-point adhesion: By providing a proper base, it ensures sealant adheres only to the sides so you achieve long-lasting joint elasticity.
Moisture resistant closed cells: The closed-cell polyethylene foam does not absorb water, allowing you to use it reliably in high-moisture exterior applications.
Generous 80 m roll length: With 80 m of continuous 30 mm cord, you fill large expansion joints efficiently across extensive construction projects.

In a nutshell

The right choise for

With the Den Braven Zwaluw 210152 pe backing rod, you effortlessly establish the correct joint depth while preventing damaging three-point adhesion. The closed-cell polyethylene foam does not absorb moisture, making it exceptionally reliable for expansion and connection joints in facades, floors, and concrete structures exposed to harsh weather. Thanks to its 30 mm diameter, the foam stays firmly seated under compression, while the generous 80 m roll lets you complete large sealing jobs without unnecessary interruptions. It keeps your sealant flexible over time and helps prevent excessive material consumption.

Product information FAQ

€28.80

tax incl.

Key features according to our expert

Width: 30 mm
Roll length: 80 m
Material: PE
Thickness: 30 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: 30 mm
Roll length: 80 m
Material: PE
Thickness: 30 mm
Colour: Grey
Length: 80 m
Diameter: 30 mm
Packaging: Role

Brand ZWALUW
08076886
EAN 8711595072830
Supplier number ZWALUW 30880233

Frequently asked questions about this product

Answered by specialists

What is the purpose of this backing rod?: You use this closed-cell PE foam cord to set the correct joint depth and prevent three-point adhesion of sealant.
What are the dimensions of this roll?: The roll has a total length of 80 m and a diameter of 30 mm.
What is the benefit of the closed-cell structure?: The closed cells do not absorb moisture, making the material water-resistant and suitable for heavy-duty joints.
Which sealants can this product be combined with?: It is compatible with standard construction sealants, including silicone, acrylic, and hybrid polymer sealants.
How do you select the correct diameter for the joint?: Choose a diameter 20 to 25 percent wider than the joint width so the foam sits firmly in place under compression.