ZWALUW DEN BRAVEN 210154 closed-cell PE foam backfilling grey 120 m x 40 mm - 30618126

Name: ZWALUW DEN BRAVEN 210154 closed-cell PE foam backfilling grey 120 m x 40 mm - 30618126
Brand: ZWALUW
SKU: 08076887
Price: 72.2 EUR
Availability: PreOrder

Supplier number: ZWALUW 30618126 | EAN 8711595072847

72.20 tax incl.

€59.67 excl. VAT (incl. all environmental contributions)

On order: delivered from 03/10/2026

roll

Ordered before 20:00 - delivered as of 03/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

✆ Talk to a specialist

Ideal joint depth and movement

Practical benefits

Prevents sealant three-point adhesion: You ensure your sealant maintains full flexibility and does not tear under joint movement or thermal expansion.
Water-resistant closed-cell PE foam: Its durable closed-cell construction repels moisture and withstands high mechanical stress across indoor and outdoor applications.
Continuous roll for large jobs: The generous 120 M length allows you to fill wide 40 MM expansion joints seamlessly without unnecessary joints or waste.

In a nutshell

The right choise for

With the Den Braven Zwaluw 210154 pe backer rod, you effortlessly establish the correct joint depth and eliminate three-point sealant adhesion in facades, floors, and concrete structures. Because elastomeric sealants do not adhere to closed-cell polyethylene, your joints can freely expand and contract without tearing. The closed-cell foam structure ensures the grey rod is completely water-resistant and stable under heavy mechanical loads. Featuring a 40 MM diameter and a generous continuous roll length of 120 M, it allows you to fill wide expansion joints efficiently and without interruptions, while significantly reducing excessive sealant consumption.

Product information FAQ

€72.20

tax incl.

Key features according to our expert

Width: 40 mm
Roll length: 120 m
Material: PE
Thickness: 40 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: 40 mm
Roll length: 120 m
Material: PE
Thickness: 40 mm
Colour: Grey
Length: 120 m
Diameter: 40 mm
Packaging: Role

Brand ZWALUW
08076887
EAN 8711595072847
Supplier number ZWALUW 30618126

Frequently asked questions about this product

Answered by specialists

What is this PE backer rod used for?: You use this closed-cell PE foam to set the correct joint depth and prevent three-sided sealant adhesion.
What are the diameter and roll length of this product?: This product has a diameter of 40 mm and comes on a roll with a total length of 120 m.
Is this backing rod water resistant?: Yes, thanks to its closed-cell polyethylene structure, the material is resistant to water and airtight.
Does sealant adhere to this PE foam?: No, joint sealants do not adhere to polyethylene, allowing the joint sealant to expand and contract freely.
What joint width is suitable for this 40 mm diameter rod?: Choose a backing rod with a diameter 25% larger than the joint width, making this ideal for 32 mm joints.