Ottoseal S80 natural stone silicone transparent 310ml
€10.29
- Leaves no marks on the stone, even on pale marble
- Low in odour and therefore pleasant on longer grouting jobs
- Bonds to many substrates without a pre-coat
- Stays elastic and weatherproof, indoors and out
- 14 days right of withdrawal
- Expert advice: 02831 9167703 Mon–Thu 9–16, Fri 9–12 (CET)
- Specialist dealer in Kevelaer, Lower Rhine
Description
OTTOSEAL® S 80 is a high-quality, low-odour natural stone silicone developed specifically for safe jointing of sensitive natural stones. It prevents edge-zone discolouration and ensures long-lasting, elastic seals indoors and outdoors.
Benefits & properties
- ✔️ Low-odour, user-friendly formulation
- ✔️ No edge-zone discolouration on natural stone
- ✔️ Permanently elastic and weather-resistant
- ✔️ High adhesion without primer on many substrates
- ✔️ Ideal for high-quality natural stone surfaces indoors and outdoors
Areas of application
- Prevents discolouration in natural stone joints (e.g. marble, granite, slate)
- For sanitary areas, kitchens, floor joints, facades and high-quality natural stone installations
- Alternative to standard silicones, which often lead to edge-zone discolouration
Detailed product description
OTTOSEAL® S 80 is based on neutral-curing silicone technology and is specially formulated for sensitive natural stones. The material is highly viscous, permanently elastic and resistant to moisture, UV radiation and temperature fluctuations. It is ideally suited to construction, trades, sanitary installations and professional natural stone processing.
Application takes place on clean, dry substrates; on natural stone no primer is required. For optimum results, masking the joint edges and smoothing with suitable tools is recommended.
Technical data
| Property | Value |
|---|---|
| Colour | Wide range of natural stone shades |
| Container size | 310 ml cartridge |
| Application temperature | +5 °C to +35 °C |
| Temperature resistance | -40 °C to +180 °C |
| Skin-forming time | approx. 10–20 minutes |
| Shelf life | 12 months (cool & dry) |
| Viscosity | Pasty, non-sag |
| Standards/certificates | EC1 Plus, DIN EN 15651 |
FAQ
Is OTTOSEAL® S 80 suitable for all natural stones?
Yes, the silicone is specially developed for sensitive natural stones and reliably prevents edge-zone discolouration.
Can the product be used outdoors?
Yes, OTTOSEAL® S 80 is UV- and weather-resistant and ideally suited to facade and floor joints.
Is a primer needed?
On natural stone a primer is generally not required, as the product offers very good adhesion.
How long does curing take?
Complete curing takes place within 24–48 hours, depending on temperature and humidity.
Is the silicone mould-resistant?
Yes, OTTOSEAL® S 80 has fungicidal properties and is therefore ideally suited to damp rooms.
Technical data
| Material: | Silicone |
|---|
| Version | |
|---|---|
| Colour: | transparent |
| Technical data | |
| Contents: | 310 ml |
| Product type: | Natural stone silicone |
| Standards | |
| Standard: | DIN EN 15651 |
| Use | |
| Merchandise group: | Sealants |
| Application | |
| Application temperature: | +5 °C to +35 °C |
Data sheets
Data sheets and documents
All documents come unchanged from the manufacturer.
Manufacturer information
Manufacturer information pursuant to Art. 19 EU GPSR
Postal address
Hermann Otto GmbH
Krankenhausstr. 14
83413 Fridolfing
Germany
Electronic address info@otto-chemie.de
Information as of: 2026-09-17
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