Sika Sikadur 31 DW

SKU
ID22481
Part A: Non Hazardous, Part B: UN1759 (Class: 8, Pk Grp: III)
A 2 part epoxy structural adhesive with drinking water contact approval. DWI Approved.
Available in 6 Kg in Concrete Grey
From £139.16 £115.97
In stock
Only %1 left
Product Description

Sika Sikadur 31 DW is a 2-part epoxy based moisture tolerant, thixotropic, structural adhesive which bonds most construction materials.

Best Uses

Sika Sikadur 31 DW potable adhesive has high mechanical strength and can also be used for minor concrete repairs, joint filling and crack sealing. Suitable for temperature ranges between +10°C to +30°C, internally and externally.

Specially formulated to meet the requirements for use in contact with drinking water. Sikadur®-31 DW may only be used by experienced professionals.

  • Easy to mix and apply.
  • Very good adhesion to most construction materials.
  • High mechanical strengths.
  • Thixotropic: non-sag in vertical and overhead applications.
  • Hardens without shrinkage.
  • Different coloured components (for mixing control).
  • No primer needed.
  • High initial and ultimate mechanical strength.
  • Good abrasion resistance.
  • Impermeable to most liquids and water vapour.
  • Good chemical resistance.

Structural adhesive for bonding:

  • Concrete elements
  • Hard natural stone
  • Ceramics and Fibre Cement
  • Mortar, Bricks, Masonry
  • Steel, Iron, Aluminium
  • Wood
  • Polyester, Epoxy
  • Glass

Sikadur®-Combiflex® System for drinking water applications

Repair and adhesive for:

  • Corners and edges
  • Holes and void filling
  • Metal profiles
  • Bonding brick slips

Joint filling and crack sealing:

  • Joint and crack arris / edge repair
  • Sealing non-structural static cracks
Technical Details

Approvals and Certifications

  • DWI Approved for potable water - DWI 56/4/94
  • CE Marking and Declaration of Performance to EN 1504-4: Structural bonding
  • Adhesive for Waterproofing System ÖNORM B 5014 Test 1, Sikadur®-31 DW, OFI Technologie & Innovation GmbH, Test Report No. 408.394
  • Migration Analysis RD 118/2003, Sikadur®-31 DW, O.T.E.C., Test Report No. 0761415488.
  • Water Regulations Approval BS6920-1, Sikadur®-31 DW, WRAS, Approval No. 1708503.

Technical Info

Components: Two Component
Type: Epoxy resin and selected fillers
Finish: -
Stock Colours: Concrete Grey
Tintable: No
VOC Content: n/a
Volume Solids: -
Suitable Substrates: Concrete, Bricks, Masonry, Steel, Iron, Aluminium, Wood, Natural Stone
Application Method: Spatula, Trowel, Notched Trowel or by Gloved Hand
Theoretical Coverage: ~2.0 kg/m2 per mm of thickness
Layer Thickness: 30 mm max
Induction Time: -
Pot Life: 105 minutes at 23°C
Tensile Strength: 14 days at 23°C
Tensile Adhesion Strength: 7 days at 23°C
Overcoatable: May be overcoated with a Sika® compatible epoxy coating when adhesive has hardened
Cleaner / Thinner: Thinner C
Shelf Life: 2 years from date of production unopened
Packaging: Available in 6 Kg

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