Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Italy.
🌟 Seal the deal with Sika Flex 521 UV — where strength meets style!
Sika Flex 521 UV is a premium 300 ml polyurethane hybrid sealant designed for professional-grade waterproofing and bonding. It offers exceptional weather and aging resistance, adheres to a wide range of substrates without special treatment, and delivers a flexible, paintable finish. Free from solvents, silicone, and PVC, it ensures a safer application while providing a strong 1500 PSI tensile strength and high electrical resistance, making it the go-to choice for durable, elastic joints in demanding environments.
| ASIN | B00A9UK1TQ |
| Best Sellers Rank | 25,181 in Automotive ( See Top 100 in Automotive ) 251 in Fillers, Adhesives & Sealants |
| Brand | Sika |
| Colour | Weiß |
| Country Of Origin | Germany |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,739) |
| Full Cure Time | 3E+1 Minutes |
| Global Trade Identification Number | 07611237142116 |
| Item Form | Paste |
| Item Type Name | Sika Flex-521UV Weatherproof Hybrid Sealant |
| Item Weight | 0.42 Kilograms |
| Liquid Volume | 300 Millilitres |
| Manufacturer | Sika |
| Manufacturer Part Number | 54864 |
| Material | Polyurethane Silicone silicone Polyvinyl chloride |
| Model Number | 54864 |
| Number of Items | 1 |
| Product Warranty | Product guarantees 0 months. |
| Surface Recommendation | Wall, ceiling, door, window |
| Tensile Strength | 1500 Pounds Per Square Inch |
| Unit Count | 300.0 millilitre |
| Water Resistance Level | Water Resistant |
M**L
Needed it fast.
Needed this specific product for a client task. As always the main criteria was getting the item quick as this was a urgent task. Delivery was quick and well packaged. The product worked well but as this product was a requirement by the customer I don't think it's fair to compare it to other products. It has remained flexible and provided a weatherproof seal on the component.
K**N
Brilliant stuff very strong joint.
Easy to use, full size solar panel fitted to the caravan glued in 6 positions very strong joints fitted Saturday morning could not move it Sunday morning, no holes required in the caravan roof.
M**T
Solar panals glue
Great stuff used to glue solar panals on my van
L**N
Best sealant on the market
Use this before on our caravan would highly recommend
G**N
Sikaflex
Perfect for the job putting solar on campervan roof
S**E
Good sealant for motorhome, and general outdoor settings
Great sealant for motorhome
P**P
keep out the damp
Not tried this batch but last lot very good
A**R
Yes
Excellent
F**S
Buen sellador las uniones me han quedado perfectas y fuertes, he conseguido impermeabilizar en el exterior con este producto fácilmente.
E**O
Resiste a sole, pioggia e agenti chimici in misura superiore al già valido Sikaflex 11 FC. Sarà forse perché contenuto in una cartuccia metallica, ma mi ha ricordato l’11 nella sua vecchia formulazione. Ottima adesione su metallo, legno, PVC, vetro, ceramica e superfici murarie: un sigillante versatile e molto affidabile.
D**M
Très bon produit, je ne regrette pas d'avoir acheté,
S**E
Il n'est plus la peine de faire la publicité de Sika ! Cette marque est presque indispensable sur bon nombre de chantiers, qu'ils soient professionnels ou amateurs, et ce produit ne fait pas exception à la règle. ✅ Points Forts : • Réputation Confirmée : On achète Sika, on achète la tranquillité. La qualité est toujours au rendez-vous. • Facilité d'Application : Le produit s'extrude et se lisse très facilement (avec les outils adéquats, bien sûr !). Il a une bonne consistance, sans couler. • Double Rôle Parfait : Il colle bien et fait parfaitement son rôle de joint d'étanchéité (intempéries, humidité, etc.). • Adhérence : J'ai obtenu une très bonne adhérence sur mes supports (vous pouvez ajouter les supports si vous voulez, ex: bois, métal, béton). C'est un produit fiable que je valide sans hésitation. Si vous cherchez un colle-mastic polyvalent et durable, vous l'avez trouvé. Je recommande ce produit à 100% !
R**T
Snabb leverans och bra packat
Trustpilot
3 weeks ago
2 months ago