NBS Source
List your products

Sikasil® WS-355

Third party certifications:
  • BSI Kitemark

    Certificate type

Sika Limited

High performance, neutral-curing, low modulus silicone weather sealant.

Jump to:
+44 (0)1707 394444 www.sika.co.uk
Application

For professional use only. To be gunned into place. Suitable for jointing natural stone applications such as:

  • Marble.
  • Granite.
  • Sandstone.
  • Quartzite.
  • Facades (e.g. cladding of natural stone or other materials).

Available in 300 ml or 600 ml. Consult manufacturer for information regarding suitable preparation and application methods for this product. Sika recommend project specific stain testing to confirm the performance of the product.

Description

High performance, neutral-curing, low modulus silicone weather sealant with a high movement capability and good adhesion to porous and non-porous substrates. Developed for use in natural stone applications.

Features and benefits:

  • Does not stain areas adjacent to the joint or the joint edges, unlike with conventional silicone sealants.
  • Non-streaking.
  • Movement capability of ±50%.
  • Solvent free, with very low emissions.
  • UV and weather resistant.
  • Adheres to a wide range of materials, including natural stone, concrete, glass, metals, coated and painted metals, plastics and wood.
  • Bonds well to a wide variety of substrates.

Applications:

For professional use only. To be gunned into place. Suitable for jointing natural stone applications such as:

  • Marble.
  • Granite.
  • Sandstone.
  • Quartzite.
  • Facades (e.g. cladding of natural stone or other materials).

Available in 300 ml or 600 ml. Consult manufacturer for information regarding suitable preparation and application methods for this product. Sika recommend project specific stain testing to confirm the performance of the product.

General information
Specification data - Silicone construction joint sealants
Product Reference

Sikasil® WS-355

Standard product features

Technical characteristics:

  • Density: ~1.49 kg/L.
  • Non-sag properties: <2 mm.
  • Service temperature: -40°C to +150°C.
  • Skin time: ~20 minutes.
  • Application temperature: 5°C to 40°C.
  • Tensile strength (CQP 036-1 / ISO 37): ~1 N/mm.
  • Shore A hardness (CQP 023-1 / ISO 868): ~22.
  • Movement capability (ASTM C 719): ± 50%.
  • Elongation at break (CQP 036-1 / ISO 37): ~800%.
  • Thermal resistance: 180°C. Short term: 200°C (four hours), 220°C (one hour).

Third party certifications
  • British Standards Institution (BSI) - certficate : Meets the requirements of ISO 11600 25 LM F and G, ASTM C 920 (class 50), ASTM C 1248, TT-S00230C, and TT-S001543A
  • British Standards Institution (BSI) - certficate : CE marked according to EN 15651-1:2012, F EXT-INT 25HM, EN 15651-2:2012, G CC 25HM, and certified by Control Body 1119
Similar products from Sika Limited