The floor sealant

1-component hybrid polymer STP sealant
For indoor and outdoor application
  • Highly impact resistant
  • Extremely elastic
  • Good resistance to influence of chemicals
  • Cures practically without shrinkage
Technical datasheet

Product details

The silicone-free floor sealant OTTOSEAL® M 390 is a true all-rounder in the flooring sector, since it forms a robust and highly durable surface in the cured state thanks to its high elasticity and good workability, which not only resists mechanical stresses, but also chemical stresses. This means it is ideally suited for expansion and connection joints in various flooring. In addition, after curing the sealant can be sanded and painted. It also has the ISEGA clearance certificate for food-related areas.

Fields of application

  • Sealing of joints in parquet, laminate, wooden, cork, plastic and vinyl floors
  • Sealing of mechanically highly loaded movement and connection joints, which are exposed to stationary loads or rolling traffic, e.g. in warehouses and production halls, workshops, yards, car washes, parking decks, underground car parks etc.
  • Sealing of chemically heavily loaded floor and connecting joints, e. g. in dairies, abattoirs, beverage and food production plants, canteen kitchens, etc.
  • Stress-equalising sealing of floor and connection joints in interior and exterior areas on pedestrian paths, balconies, terraces and public areas
  • Sealing of movement joints between concrete slabs


  • Very high abrasion resistance and tear resistance
  • Resists high mechanical loads
  • Good resistance to influence of chemicals
  • Suitable for use in areas subject to heavy chemical exposure
  • Very good adhesion on many materials
  • Can be used on many materials without pretreatment
  • Cures practically without shrinkage
  • No reworking and no concave fillets that tend to become soiled
  • Extremely elastic
  • Compensates movements
  • Low odour
  • Convenient processing
  • Silicone-free
  • No interactions with commercially available parquet coatings
  • Free of isocyanates
  • Good weathering and ageing resistance
  • For long-lasting indoor and outdoor applications
  • Grindable and paintable after curing
  • Optically flawless joint adaptation

Standards and tests

  • Tested according to EN 15651 – Part 4: PW EXT-INT CC 25 HM
  • Tested according to EN 15651 – Part 1: F EXT-INT CC 25
  • EMICODE® EC 1 Plus - very low emission
  • Declaration of no objection – tested for use in food-related area (ISEGA Forschungs- und Untersuchungs-Gesellschaft mbH, Aschaffenburg, Germany)
  • Suitable for applications according to IVD instruction sheet no. 1+8+21+35 (IVD = German industry association sealants)
  • Classification according to building certification systems, see the sustainability data sheet
  • Declaration in "baubook" Austria
  • French VOC-emission class A+
  • Tested fire behaviour in accordance with EN 13501: class E

Colours & form of delivery

M 390 Farbtafel DE
310 ml cartridge 580 ml aluminium foil bag
ash, pine, spruce, Eur. maple
M390-04-C105 on request
M390-04-C10 M390-08-C10
M390-04-C2260 M390-08-C2260
M390-04-C76 on request
M390-04-C17 M390-08-C17
concrete grey
M390-04-C56 M390-08-C56
dark brown
M390-04-C49 M390-08-C49
dark oak
M390-04-C1237 M390-08-C1237
fair oak
M390-04-C64 M390-08-C64
pebble grey
M390-04-C8180 M390-08-C8180
rustic oak
M390-04-C98 M390-08-C98
titan grey
M390-04-C1172 M390-08-C1172
M390-04-C01 on request
Units per packaging unit 20 20
Pieces per pallet 1200 600

Due to typographical reasons the colours shown below may differ from the original colours of the products. For an exact colour display please request our original colour charts.

Products, packaging Units and/or colours bearing order codes are available ex warehouse in standard commercial quantities.

Consumption calculator

Please note: This values are approximate and serve as a rough guide for rightangled joints. The depth of the joints is measured to the rear of the profile. Depending on the processing method, additional expenditure of up to 25% is possible.

Do you have questions about our OTTOSEAL® sealants?

Our application consultation is available Monday to Thursday from 8:00 a.m. to 4:00 p.m. and Friday from 8:00 a.m. to 2:00 p.m. and will be happy to receive your request.