Home > Companies > Fassa UK Ltd > Sylan 290 Plus

Silane-terminated, hybrid polymer sealant with a low modulus of elasticity.

Features and benefits:

  • Highly durable.
  • Solvent-free.
  • Adheres onto absorbent, non-absorbent, and damp substrates.
  • Can be painted over.
  • Odourless.
  • Can be used to seal pools which have a low and controlled chlorine content.
  • Water-hardening.
  • Can also be used as an adhesive.
  • Non-corrosive.
  • CE marked, and manufactured in accordance with EN 15651-1, EN 15651-3 and EN 15651-4.


Suitable for interior and exterior use on walls and floors in high traffic areas. Can be used on the elastic joints between:

  • Glass.
  • Metals.
  • Ceramics.
  • Cement.
  • Gypsum.
  • Plasterboard.
  • Bricks.
  • Rigid plastics.
  • Insulating panels.
  • Wood.

Used to create perimeter, control and expansion joints on the following:

  • Terraces.
  • Balconies.
  • Flat roofs.
  • Exterior paving.
  • Connecting joints between precast elements.
  • Facades.
  • Sanitary environments.
  • Pedestrian walkways.

Can also be used as an adhesive for bonding non-structural profiles and construction elements – consult manufacturer for details.

Must be used in its original state, without the addition of other materials.

Consult manufacturer's literature for details on recommended substrate preparation, mixing instructions and consumption on different sized joints.

Related literature

The following content references this product:

Standard product features



Technical characteristics:

  • Form: Thixotropic paste.
  • Specific weight: 1.58 (±0.02) kg/L.
  • Reticulation speed (at 23°C and 50% RH): 2 mm per 24 hours.
  • Shore D hardness (to ASTM D 868): 28–35.
  • Modulus of elasticity at 100% elongation (to ISO 37/ DIN 53504): ≥0.6 MPa.
  • Tensile strength (to ISO 37/ DIN 53504): ≥1.4 MPa.
  • Elongation at break (to ISO 37/ DIN 53504): ≥350%.
  • Application temperature: 5–40°C.
  • Temperature resistance: -40°C to 100°C.
  • Conformity: To EN 15651-1: F EXT-INT-CC; to EN 15651-3: XS3; to EN 15651-4: PW EXT-INT-CC.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-55-75/350 Glazing compounds or sealants
45-55-75/345 Silicone construction joint sealants
45-55-75/315 Construction joint sealants

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Fassa UK Ltd


+44 (0)1684 212272

Product reference

Sylan 290 Plus

Manufacturer details

Fassa House,
Ashchurch Business Centre,
Alexandra Way,
Tewkesbury , GL20 8TD
Tel +44 (0)1684 212272
NBS Plus