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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Strong sealant

Product ID: 223298374

Details

Brand
Sika
Item dimensions L x W x H
49 x 49 x 225
Item weight
0.47 Kilograms
Material
Silane Polymer
Water resistance level
Waterproof

🦠High fungicidal protection

☀️UV & weather resistant

🛠️300ml precision application

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Description

🛡️ Seal your adventure with confidence—weatherproof, moldproof, worry-proof!

HYGIENE GRADE SAFETY - Certified by ISEGA for food prep areas, perfect for maintaining clean, mold-free environments.
FAST EASY APPLICATION - Smooths out effortlessly with finger, dries in just 30 minutes for quick project turnaround.
VERSATILE BONDING POWER - Bonds seamlessly with wood, glass, metal, ceramics, plastics, and painted surfaces—interior or exterior.
TRUSTED BY PROS DI YERS - Ranked #4 in Sealers with 4.7-star rating from over 12,000 users—join the caravan care elite.
ULTIMATE WEATHERPROOF SEAL - Silicone & solvent-free formula ensures long-lasting resistance against UV rays, rain, and mold.

Sika Sikaflex-522 is a 300ml moisture-curing adhesive sealant designed specifically for caravans and motorhomes. Its silicone and solvent-free formula delivers superior UV, weather, and mold resistance, certified safe for food prep areas. Ideal for both interior and exterior use, it bonds to multiple surfaces including wood, glass, and metal, drying quickly for efficient repairs. Trusted by professionals and DIY enthusiasts alike, it ensures durable, hygienic sealing that keeps your mobile home protected and pristine.

Specifications

ASIN	B08BZCXQCH
Best Sellers Rank	117 in DIY & Tools ( See Top 100 in DIY & Tools ) 5 in Sealers
Brand	Sika
Colour	White
Compatible Material	Wood, Glass, Metals, Ceiling
Country Of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (12,287)
Global Trade Identification Number	07612895613086
Included Components	Adehesive Tube
Item Dimensions	49 x 49 x 225 millimetres
Item Form	Paste
Item Type Name	Caravan Adhesive Sealant
Item Weight	0.47 Kilograms
Manufacturer	Sikaflex
Manufacturer Contact Information	Sika Everbuild 41 Knowsthorpe Way, Leeds LS9 0SW
Manufacturer Part Number	522
Material	Silane Terminated Polymer
Model Number	522
Number of Items	1
Product Warranty	Product guarantees 0 months.
Surface Recommendation	Roof
Unit Count	300.0 millilitre
Water Resistance Level	Waterproof

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