Round PU joint filler - Joint fillers - Soudal

Round PU joint filler - Joint fillers - Soudal

The round PU joint backer rod is designed to adjust the depth of the sealant.

• Refer to the current minutes.

Features :

• Very good applicability
• Great flexibility
• Compression and tensile strength
• Very good resistance to many chemicals, mild acids or alkalis.
• Compatible with most commonly used sealants (silicone, polyurethane, polysulfide, acrylic, etc.)
• Available in several widths. Length = 1 m (Sold in packs of 50)

Applications:

• Allows for filling construction and expansion joints.
• It can also be used as a joint backer rod to prevent sealants from adhering on three sides.

Instructions for use:

1. The diameter of the round PU joint base must be 50% greater than the space between the two building supports.

Packaging:

Sold in packs of 50 x 1 m:

• 15 mm
• 20 mm
• 25 mm
• 30 mm
• 40 mm
• 50 mm

FAQ - Frequently Asked Questions

1. What is the purpose of a joint filler?
   It allows control of the sealant depth, improves joint elasticity and reduces sealant consumption.
2. Can I use this joint filler with all sealants?
   Yes, it is compatible with polyurethane, silicone, MS polymer, acrylic and hybrid sealants.
3. How to choose the right diameter?
   Choose a diameter slightly larger than the width of the joint (20–30% larger) to ensure optimal fit.
4. Does the joint sealant absorb water?
   No, thanks to its closed-cell structure, it is hydrophobic and does not absorb moisture.
5. Can I use it outdoors?
   Yes, it is perfectly suited for outdoor use thanks to its resistance to humidity, frost and temperature variations.
6. Does the backing board improve the lifespan of the seal?
   Yes, it allows the sealant to deform properly and prevents premature cracking.
7. Is it mandatory for expansion joints?
   Recommended in all cases, it is essential for expansion joints to guarantee the freedom of movement of materials.
8. How does it arise?
   Simply insert it into the bottom of the joint using a blunt tool, then apply the sealant over it.