Can this be applied over existing silicone

I always clean old stuff of first then apply

Can you use for roof rail sealant for VW micro camper(caddy)?

I would use it as I repaired my roof to gutter seam with it and have had no issues yet and that's a couple of months ago

We need to reseal our whole motorhome around all the joints etc. How many packs of this would we need? The Moho is 7.5m long. Thanks

Depends upon what size gaps you’re going to seal. Very sticky, I’d start with two and smooth it in. You could always get more if needed.

Can silka522 be overpainted

Overpainting. Sikaflex®-522 can be best painted within the skin formation time. If painting process takes place after the sealant has built a skin, adhesion could be improved by treating the joint surface with Sika® Aktivator-100 or Sika® Aktivator-205 prior to paint process.

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🛡️ Seal smart, live fresh: The ultimate caravan shield!

CERTIFIED FOOD SAFE - ISEGA-certified for use in food prep zones, meeting strict hygiene and safety standards.
UV STABLE WHITE FINISH - Resists yellowing and discoloration, keeping your seal neat and pristine over time.
MOULD RESISTANT HYGIENE - Contains powerful fungicidal agents to maintain fresh, healthy air quality in ventilation and AC areas.
VERSATILE BONDING POWER - Perfect for sealing and bonding timber, glass, metal, ceramics, plastics, and painted surfaces—indoors and out.
PROFESSIONAL GRADE DURABILITY - Silicone & solvent-free formula ensures long-lasting, weatherproof repairs for your caravan or motorhome.

SikaSikaflex-522 is a 300ml, silicone- and solvent-free adhesive sealant designed for professional caravan and motorhome repairs. It offers superior UV and weather resistance, high fungicidal protection to prevent mould, and meets stringent hygiene and food safety certifications. Suitable for both interior and exterior use, it bonds elastically to a wide range of materials, ensuring durable, clean, and safe sealing solutions.

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Manufacturer	Sikaflex
Part number	522
Item Weight	472 g
Product Dimensions	4.9 x 4.9 x 22.5 cm; 472 g
Item model number	522
Size	300ml
Colour	White
Material	Silane Terminated Polymer
Item Package Quantity	1
Specification met	Entspricht den Hygieneanforderungen für Klima- und Lüftungsanlagen nach VDI 6022, Blatt 1:2011-07
Special Features	Free from isocyanate, solvents and phthalates
Specific uses	Suitable for elastic sealing and bonding applications indoors and outdoors
Included components	Adehesive Tube
Batteries included?	No
Batteries Required?	No

Sika Sikaflex -522 Caravan and Motorhome Adhesive Sealant – Moisture Curing – Weather and Mould Resistant – White – 300ml

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