OTTOSEAL® A 205 310ml – Premium Acrylic Sealant

What is OTTOSEAL® A 205?

OTTOSEAL® A 205 is a high-quality premium acrylic sealant for elastic connection and expansion joints indoors and outdoors. It is particularly suitable for applications between walls, ceilings, skirting boards, door frames, and window sills.

Thanks to its flexible formula with a total permissible deformation of 18%, OTTOSEAL® A 205 reliably compensates even larger joint movements. The material is paintable, does not yellow or gray, and ensures a permanently clean joint appearance.

Areas of Application

• Connection joints in skirting, wall, and ceiling areas (indoors & outdoors)
• Joints on window sills, roller shutter boxes, and door frames
• Sealing of skirting boards and component connections
• Renovation, extension, and refurbishment work

Features & Benefits

• 18% total permissible deformation according to ISO 9046
• Paintable & overpaintable (paint compatibility according to DIN 52452)
• No yellowing or graying
• UV-resistant – also suitable for weathered outdoor areas
• Frost-resistant – storage & transport up to 48 h at max. –10 °C possible
• Very low emission (EMICODE® EC 1 Plus)

Technical Key Figures (Excerpt)

• Total permissible deformation: 18%
• Application area: Indoors & Outdoors
• Paintable: Yes (refer to technical data sheet)
• UV resistance: Good
• Frost resistance: Transport/storage up to –10 °C (max. 48 h)

Standards & Tests

• Tested according to EN 15651 – Part 1 – F EXT-INT 12.5 P
• Fire behavior: EN 13501 – Class E
• EMICODE® EC 1 Plus – very low emission
• IVD Quality Seal (tested by ift Rosenheim)
• VOC Emission Class A+ (France)
• Declaration in Baubook Austria
• REACH compliant according to EC No. 1907/2006
• Suitable according to IVD Data Sheets No. 12, 16, 20, 29, 31, 32, and 35

Matching Accessories & Other Sealants

Further acrylic sealants, silicones, and accessories can be found in our Silicone & Sealants category.

Frequently Asked Questions

Is OTTOSEAL® A 205 paintable?

Yes, OTTOSEAL® A 205 is paintable and overpaintable. For optimal results, please observe the drying time instructions in the technical data sheet.

Can OTTOSEAL® A 205 be used outdoors?

Yes, the sealant is suitable for indoor and outdoor applications and has good UV resistance.

Is OTTOSEAL® A 205 suitable for food contact?

No, the sealant is not approved for applications with food contact.

Where can I find technical data sheets?

The technical data sheet and the safety data sheet are available upon request.

Brand notice:
Brand product of Hermann Otto GmbH. Sold via Bauwolke24.