Product information
Flexible and 2-component sealant packed in the correct mixing ratio to one another. wedi 520 bridges cracks and guarantees the highest degree of safety in the case of subsequently occurring surface cracks. Suitable for universal indoor use. Specially developed for flexible joint sealing by Subliner Dry & Flex.
- flexible, 2-component sealant
- Crack-bridging, provides good protection against subsequent surface cracking
- hydraulic drying
- for the flexible sealing under tile coverings in showers
- can be used indoors with a general approval certificate of the construction supervision authorities.
- easy to mix because both components are supplied in the correct mixing ratio to one another
- aging-resistant, unaffected by environmental influences.
What must be observed when preparing the substrate?
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Technical Details
Composition:
Powder component: Special cement mortar with selected admixtures and additives
Fluid component: modified acrylate dispersion
| Technical properties | |
|---|---|
| Mixing ratio | 10 kg liquid component to 20 kg powder component |
| Density of mixed material | ca. 1,36 kg / l |
| Curing time | approx. 3 minutes |
| Processing time (at +20°C/50% relative humidity) | approx. 45 mins |
| Processing temperature | +5°C to +25°C |
| Number of work days | at least two |
| Drying time | approx. 3 hours per layer applied |
| Rain resistance | |
| at 5 °C | approx. 6 hours |
| at 20 °C | approx. 3 hours |
| Load-bearing capacity | |
| at +20°C and 50 % relative humidity | Can be walked on after approx. 6 hours* |
| at +20°C and 50 % relative humidity | Ceramic covers can be applied after approx. 12 hours* |
| at +20°C and 50 % relative humidity | Can be exposed to contact with water after approx. 3 days* |
Fundo Integro- Fundo Plano
Fundo Primo
Fundo Ligno Plus
Fundo Borgo
Fundo Trollo
Fundo Nautilo
wedi Solso
Fundo Plano Linea
Fundo Riolito Neo
Fundo Riolito
Fundo RioLigno
Fundo Riofino
Fundo Discreto- New
Fundo sloping board 
Building board
Building board XL and XXL
Sanwell shower wall module
Sanwell wall elements
wedi Subliner Dry
Subliner Dry and Flex
Downloads
abP building board and Fundo with Ardex X77
abP building board and Fundo with Kiesel
abP building board and Fundo with Mapei
abP building board and Fundo with PCI
abP building board and Fundo with Sakret
abP building board and Fundo with Schoenox
abP building board and Fundo with wedi 320
abP Subliner Dry
abP Subliner Dry & Flex
abP wedi 520
Brochure - wedi world of systems
Certificat - GEV EMICODE for wedi 520 sealant
Technical datasheet - wedi 520 - Flexible sealant
Certificate ISO 50.001 - Energy management system (valid from 2022-2025)
ISO 9001:2015 certificate
Usage
wedi 520 flexible sealant is suitable for flexible sealing under tile coverings:
- In wash rooms, as well as in toilet and shower facilities
- In combination with ceramic coverings for indoor use
- On walls and floors in both humid and wet areas
- Officially approved for composite waterproofing in frequently wet areas suitable for moisture exposure classes A, B, A0 and B0 according to the Building Rules List A, as well as the “composite waterproofing” ZDB information sheet in load classes A and B
- For use with water impact category W0-I to W3-I in accordance with DIN 18534-1
- Interior seals for industrial water tanks up to 2 m water depth
Product features
- Two-component, easy to mix. Both components are provided in the optimal component ratio
- Resistant to ageing and not susceptible to environmental influences
- Crack-bridging, provides good protection in the case of subsequent surface cracking.
- Waterproof for universal indoor use
- Licensed together with wedi 320 in a building-approved system as an alternative sealing in combination with ceramic tiles and building boards