Sika Sikaflex® 522 is a high-quality, elastic adhesive-sealant based on Silane Terminated Polymer (STP) . The product is specially developed for the needs of campers, caravans, motorhomes and automotive applications where reliable bonding and sealing against vibrations and external influences are required.
The adhesive provides excellent adhesion to metal, aluminum, glass, painted surfaces, plastics and composites, without the need for a primer in most applications. It is resistant to UV rays, moisture and weather conditions, making it suitable for outdoor use.
Sikaflex® 522 is free of isocyanates and solvents, has a low odor and can be painted after curing.
Main advantages:
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Glues and seals at the same time
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Excellent adhesion without primer to most materials
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Resistant to UV rays and weather conditions
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Free of isocyanates and solvents
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Low odor
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Suitable for indoor and outdoor use
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Can be painted after curing
Applications:
- Installation and sealing of hatches, windows and doors on campers and caravans
- Gluing panels, profiles and decorative elements
- Sealing joints and connections exposed to vibrations
- Suitable for metal, aluminum, glass, painted surfaces, plastics and composite materials
Technical characteristics:
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Type: adhesive sealant (STP)
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Curing: by moisture from the air
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Volume: 300 ml
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Shape: cartridge
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Color: (depending on availability – white / black / gray)
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Application temperature: approximately +5°C to +40°C
| Characteristics
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Sikaflex®522
|
Sikaflex®554 |
| Product type |
Elastic sealant + glue |
Mostly bonding adhesive
|
| Main function |
Basic sealing with additional adhesive ability |
Basic bonding and assembly of components
|
| Application
|
For joints, sealing windows, hatches, covers, sanitary areas, kitchens, etc. |
For installation of large elements , panels, structures, heavily loaded connections
|
| Dynamic loads |
Appropriate, but not the main focus |
Excellent resistance to dynamic loads and vibrations |
| Adhesion without primer
|
Yes — good adhesion to many surfaces without primer
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Yes — good adhesion without primer, especially for assembly applications |
| Weather resistance |
High resistance and UV stability
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Very good resistance to external conditions |
| Special certificates |
EC1+ (very low emissions), ISEGA (can be in contact with food), VDI 6022 (hygiene requirements)
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ISEGA, DIN EN 45545-2 R1/R7 HL3 (fire protection) |
| Application in caravans / campers |
Sealing joints, windows, water repellency |
Installation of heavy elements - panels, rails, fasteners |
| Recommended for DIY or professional |
Suitable for a wide range of uses, including DIY |
More for installations and professional use
|
Key differences explained
🟡 Sikaflex®-522 is a universal sealant with adhesive properties , intended primarily for elastic sealing and small assembly tasks . It is characterized by very low emissions , good odor and high weather resistance, making it suitable for standard joints, windows, sanitary and kitchen seals in campers and caravans.
🟢 Sikaflex®-554 is a strong assembly adhesive with STP technology, designed for bonding larger and loaded components . It offers good adhesion without primer, very good weather resistance and is suitable for dynamic loads and structural assemblies , e.g. fastening panels, solar and other heavy elements.
When to choose which one?
✅ Choose Sikaflex®-522 if you are looking for:
• Sealing joints, windows, hatches or sanitary areas
• Low emission product with high UV resistance
• Universal adhesive for light to medium applications
✅ Choose Sikaflex®-554 if:
• You are installing heavier or structural elements
• You want strong traction and resistance to dynamic loads
• Installation work on panels, rails, supports, etc.
