Materials for fabric expansion joints

Expansion joints are made of materials which answer for European criterions protection for ecology and can keep all their properties. Project and production of expansion joints prefer quality and advisability used materials for given medium and required parameters.

Used materials for the production of fabric expansion joints and their base properties:

Material
For continues 
operation temperature
Chemical resistant Description
max. C acids bases
Netting        
Wire netting 1.4828 + 1000 1 1 use for protective insulating layer against abrasive medium
Wire netting 1.4301 + 550 2 1
Wire netting 1.4401 +300 2 1
Insulants        
Ceramic filaments + 1250 1 1 use for heat insulation layer
Isofilz + 1000 1 1
Mineral wool + 600 2 2
Fabric        
Ceramic fabrc + 1000 2 2 use for carrier layer
Glass fabric HT + 700 2 2
Glass fabric + 550 2 2
Coated fabric        
PU-TEX + 150 2 2 use for carrier and sealing layer
PTFE-TEX + 260 1 1
VITEX + 200 1 2
SILTEX + 200 3 2
ALUTEXTEM + 400 2 2
Hypalon -TEX + 80 2 2
PTFE-GW + 260 1 1  
Sealing foil        
Alu-foil + 500 2 2 use for sealing layer
PTFE-foil + 260 1 1
Viton + 200 1 2

1 - significant 
2 - conditional
3 - little
3* - little chemical resistance, but significant physical properties


Frequently Asked Questions (FAQ)

What types of materials are commonly used for fabric expansion joints?

Fabric expansion joints are typically made from a variety of materials, including fiberglass, silicone, PTFE (Teflon), and rubber composites. Each material offers unique properties suited for different operational environments. For instance, silicone is often used for high-temperature applications due to its excellent thermal stability, while PTFE provides outstanding chemical resistance.

How do the properties of these materials affect the performance of expansion joints?

The properties of the materials used in fabric expansion joints significantly impact their performance. For example, flexibility and elasticity are crucial for accommodating movement, while temperature resistance ensures functionality in extreme conditions. Furthermore, materials like fiberglass provide high tensile strength, contributing to the joint's overall durability and longevity.

What factors should be considered when selecting materials for fabric expansion joints?

When selecting materials for fabric expansion joints, it is essential to consider factors such as temperature ranges, chemical exposure, pressure conditions, and the specific medium the joint will be exposed to. Additionally, compliance with European environmental criteria is vital to ensure ecological protection. Always consult with a technical expert to determine the most suitable material for your specific application.