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Sikadur 31+ Rapid | Fast Curing Structural Adhesive

Sikadur 31+ Rapid

SIK31PLUSRAPID
SIK10948

Sikadur 31+ Rapid is a 2-part, fast-curing, epoxy based structural adhesive. It is moisture-tolerant, bonds to many construction materials and can also be used for structural concrete repairs, joint filling, and crack sealing.

  • Easy to mix and apply - Very low VOC
  • Good adhesion to many construction materials
  • High initial and final mechanical strength
  • Suitable for structural concrete repair, class R4 according to EN 1504-3:2005 (Structural and non-structural repair)
  • Thixotropic: non-sag in vertical and overhead applications
  • No primer needed
  • Abrasion and Chemical resistant
  • Different coloured components for mixing control
  • Impermeable to most liquids and water vapour

Colour
Size
£47.14(incl. VAT)
£39.28(ex. VAT)
Quantity
Please choose your colour
Available for Delivery (See Delivery Options Below)

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Description

Sikadur 31+ Rapid is a 2-part, fast-curing, epoxy-based structural adhesive. It is moisture-tolerant, bonds to many construction materials and can also be used for structural concrete repairs, joint filling, and crack sealing.



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Features & Benefits


       
  • Easy to mix and apply
  • Very low VOC (GEV Emicode EC1 PLUS)
  • Very good adhesion to many construction materials
  • Hardens without shrinkage
  • Can be applied up to 30 mm thick in one layer
  • Can be applied at temperatures between +5 °C and +20 °C



Uses


The Product is used as an adhesive for:

  • Structural concrete repair (Principle 3, Method 3.1 of EN 1504-9). Repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works
  • Structural strengthening (Principle 4, Method 4.3 of EN 1504-9). Bonding plate reinforcement
  • Structural strengthening (Principle 4, Method 4.4 of EN 1504-9). Adding mortar

The Product is used for bonding the following materials:

  • Concrete
  • Natural stones
  • Ceramics
  • Fibre cement
  • Mortar
  • Brick masonry
  • Brick slips
  • Steel
  • Iron
  • Wood 

The Product if used for repairing and reprofiling:

  • Structural concrete elements such as beams, columns, and walls
  • Non-structural concrete elements
  • Small patches and edges

The Product is used for filling and sealing:

  • Joint arrises
  • Crack arrises
  • Non-structural static cracks
  • Holes
  • Voids



Substrate Preparation


Substrate Quality

Concrete, Masonry, Mortar, Stone:

  • Concrete and mortar must be at least 28 days old
  • Substrates must be sound, clean, dry or matt damp with no standing water
  • Substrates must also be free from contamination such as ice, dirt, oil, grease, coatings, laitance, efflorescence, surface treatments and loose friable material

Steel:

  • Surfaces must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, coatings and loose friable material

Wood:

  • Surfaces must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, coatings and loose friable material

Substrate Preparation

IMPORTANT - Reduced adhesion performance Surface contamination such as dust and loose material, including that caused during substrate preparation can reduce performance.

Thoroughly clean all substrate surfaces before application of the product by vacuum or dust removal equipment.

Concrete, Masonry, Mortar, Stone:

Suitable techniques for substrate preparation include the following:

  • Abrasive blast cleaning
  • Needle gunning
  • Light scabbling
  • Bush hammering
  • Grinding
  • Prepare the substrate mechanically using a suitable technique

The substrate has an open textured gripping surface profile.

Steel:

Suitable techniques for substrate preparation include the following:

  • Abrasive blast cleaning
  • Rotating wire brush
  • Grinding
  • Prepare the substrate mechanically using a suitable technique

The substrate has a bright metal finish with a surface profile to satisfy the necessary tensile adhesion strength requirement.

Wood:

  • Prepare the substrate by planing, sanding or using other suitable equipment



Mixing


IMPORTANT

Maintaining workability and handling time

  • When using multiple units during application, do not mix the following unit until the previous one has been used

Pre-Batched Units

  • Mix full units only. Note: Mix only the quantity which can be used within its pot life
  • Prior to mixing all parts, mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (maximum 300 rpm)
  • Add part A to part B (hardener) and mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved
  • IMPORTANT: Do not overmix. To ensure thorough mixing, pour materials into a clean container and mix again for approximately 1 minute. Mixing time for A+B = 4 minutes



Application


IMPORTANT -Provide temporary support for heavy components positioned vertically or overhead

Bonding

Preconditions - Prior to application, confirm dew point conditions before and during application.

  • IMPORTANT: On damp prepared concrete substrates, always apply by brush and work the Product well into the substrate. Apply mixed adhesive to the prepared surfaces with a spatula, trowel, notched trowel or by gloved hand
  • For optimum adhesion, apply adhesive to both surfaces that require bonding
  • For heavy components positioned vertically or overhead, provide temporary support until the Product has fully hardened. Hardening will be dependent on ambient temperatures

Repair

Preconditions - Prior to application, confirm dew point conditions before and during application.

  • Place temporary formwork as required
  • IMPORTANT: On damp prepared concrete substrates, always apply by brush and work the Product well into the substrate. Apply mixed adhesive to the prepared surfaces with a spatula, trowel or by gloved hand

Note: For repairs greater than 30 mm deep, the Product must be applied in layers.

  • Scratch the surface of the freshly applied intermediate layer to form a key for the subsequent layer
  • Apply successive layers once the previous layer has hardened
  • If the time between layers is going to be more than 2 days, blind the wet adhesive to excess with quartz sand immediately after application

Joint Filling and Crack Sealing

  • Apply mixed adhesive to the prepared surfaces with a spatula or trowel

Cleaning Of Tools

  • Clean all tools and application equipment with Sika Thinner C immediately after use
  • Hardened material can only be removed mechanically



Limitations


  • Sikadur resins are formulated to have low creep under permanent loading. However, due to the creep behaviour of all polymer materials under load, the long term structural design load must account for creep
  • Generally, the long term structural design load must be lower than 20−25 % of the failure load. A structural engineer must be consulted for load calculations for the specific application
Product Details
10948-1004781

Data sheet

Manufacturer
Sika
For Use On
Concrete
Natural Stone
Wood
Polyester
Brick
Masonry
Cement
Steel
Iron
Application Method
Trowel
Colour
Standard / Ready Mixed
Single, Two or Three Pack
Two-Pack
Pack Size
1.2KG
6KG
UN Number
N/A
Suitable For Use On
Masonry
Suitable For Use On
Concrete
Suitable For Use On
Brick
Suitable For Use On
Wood
Suitable For Use On
Steel
Suitable For Use On
Cement
Suitable For Use On
Iron
Suitable For Use On
Natural Stone
Suitable For Use On
Polyester
Application Method
Trowel
Manufacturer
Sika
Components
2K
Usages
Structural Strengthening
Product Usage Type
Adhesive
Product Range
Sikadur
Attachments
Download


Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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IMPORTANT SHIPPING & DELIVERY INFORMATION

Sikadur 31+ Rapid is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT


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