Product Data Sheet Show all documents

Sikadur®-32+

2-part structural epoxy adhesive for bonding, fixing and anchoring with sustainable benefits

Sikadur®-32+ is a moisture tolerant, structural, 2-part adhesive, based on a combination of epoxy resins and special fillers, designed for use at temperatures between +10 °C and +30 °C.

  • Application temperature range +10 °C to +30 °C
  • Suitable for dry and damp concrete substrates
  • Easy to mix and apply
  • Very good adhesion to a range of construction materials
  • Hardens without shrinkage
  • Different coloured parts (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Impermeable to liquids and water vapour
  • Good chemical resistance
Product Data Sheet Show all documents

Usage

The Product is used as a structural adhesive for bonding the following:
  • Fresh concrete to hardened concrete
  • Concrete elements
  • Hard natural stone
  • Ceramics and fibre cement
  • Mortar, bricks, masonry and render
  • Iron and steel
  • Wood
The Product is used as an adhesive for fixing and anchoring the following:
  • Small anchors
  • Fasteners
The Product is used as a primer for the Sika® Icosit® KC System:
  • On prepared dry and mat damp concrete surfaces
  • On prepared metal surfaces

Advantages

  • Application temperature range +10 °C to +30 °C
  • Suitable for dry and damp concrete substrates
  • Easy to mix and apply
  • Very good adhesion to a range of construction materials
  • Hardens without shrinkage
  • Different coloured parts (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Impermeable to liquids and water vapour
  • Good chemical resistance

Packaging

Pre-batched unit Part A + Part B

1 kg unit (8 x 1kg units per outer carton)

Colour

Part A

Light grey

Part B

Dark grey

Parts A+B mixed

Concrete grey

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building product disclosure and optimization — Environmental Product Declarations under LEED® v4

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4

  • Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU)

APPROVALS / STANDARDS

  • CE marking and declaration of performance based on EN 1504-4:2004 Products and systems for the protection and repair of concrete structures — Structural bonding

  • CE marking and declaration of performance based on EN 1504-6:2004 Products and systems for the protection and repair of concrete structures — Anchoring reinforcing steel bar
Product Information

Product Declaration

EN 1504-4: Structural bonding

EN 1504-6: Anchoring

Chemical Base

Epoxy resin

Shelf Life

24 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Density

Mixed resin at +23 °C.

(1.5 ± 0.1) kg/l
Technical Information

Compressive Strength

61 N/mm2

(EN 12190)

Curing time

+10 °C

+23 °C

+30 °C

1 day

5 N/mm2

35 N/mm2

-

3 days

40 N/mm2

42 N/mm2

55 N/mm2

7 days

45 N/mm2

48 N/mm2

60 N/mm2

14 days

51 N/mm2

52 N/mm2

-

Modulus of Elasticity in Compression

Cured 14 days at +23 °C

3300 N/mm2

5000 N/mm2

(EN 13412)

Flexural Strength

Curing time

+10 °C

+23 °C

+30 °C

1 day

10 N/mm2

18 N/mm2

-

3 days

35 N/mm2

37 N/mm2

-

7 days

40 N/mm2

40 N/mm2

35 N/mm2

14 days

42 N/mm2

42 N/mm2

-

Modulus of Elasticity in Flexure

Cured 14 days at +23 °C

3700 N/mm2

Tensile Strength

Curing time

+10 °C

+23 °C

+30 °C

1 day

10 N/mm2

16 N/mm2

-

3 days

28 N/mm2

30 N/mm2

-

7 days

34 N/mm2

35 N/mm2

-

14 days

36 N/mm2

37 N/mm2

-

Shear Strength

11 MPa

(EN 12615)

 

Tensile Adhesion Strength

Pull-Out Resistance

≤ 0.60 mm at load of 75 kN

Pull-Out railway applications

No damage at 60 kN

Fastening systems

100 kN

Bond or adhesion strength

Pass

Curing time

Substrate

Curing temperature

Adhesion strength

7 days

Concrete dry

+10 °C

> 3 N/mm2

100% concrete failure

7 days

Concrete moist

+10 °C

> 3 N/mm2

100% concrete failure

7 days

Steel

+25 °C

15 N/mm2

Creep

Durability/Creep under tensile loads

≤ 0.6 mm at load of 50 kN after 3 months

Shrinkage

< 0.1 %

(EN 12617-1)

Coefficient of Thermal Expansion

(8.7 × 10−5 ± 0.1 × 10-5) 1/K linear expansion between +23 °C and +60 °C

(EN 1770)

Electrical Resistivity

4.3 GΩ

(EN 50122-2)

Glass Transition Temperature

+64 °C

(EN 12614)

Heat Deflection Temperature

Curing time

Curing temperature

HDT

7 days

+23 °C

+47 °C

Thermal Compatibility

Durability

Pass

Resistance to moisture

Sensitivity to water

Pass

Reaction to Fire

Class C-s1,d0

Class BFL-s1

(EN 13501-1)

 

Application

Application Information

Mixing Ratio

Part A : Part B

1 : 2 by weight or volume

Layer Thickness

Maximum

1 mm

Sag Flow

Non-sag up to 1 mm thickness on vertical surfaces

(EN 1799)

Product Temperature

Maximum

+30 °C

Minimum

+10 °C

Ambient Air Temperature

Maximum

+30 °C

Minimum

+10 °C

Dew Point

Beware of condensation.

Steel substrate temperature during application must be at least +3 °C above dew point.

Substrate Temperature

Maximum

+30 °C

Minimum

+10 °C

Pot Life

Temperature

Pot Life (200g)

+10 °C

120 min

+23 °C

45 min

+30 °C

35 min

The potlife begins when Parts A+B are mixed. It is shorter at high temperatures and longer at low temperatures. The greater the quantity mixed, the shorter the potlife. To obtain longer workability at high temperatures, the mixed adhesive may be divided into smaller quantities. Another method is to chill Parts A+B before mixing (not below +5 °C).

Open Time

Temperature

Open Time

+10 °C

150 min

+23 °C

90 min

+30 °C

60 min

 

Consumption

Consumption

1.5 kg/m2 per mm of thickness, if used as a continuous layer.

0.7 kg/m2 –1.0 kg/m2 is the quantity normally needed for bonding wet fresh concrete to hardened prepared concrete.

For small anchors or fasteners  (consumption in grams per hole):

Hole/ Rebar Diameter

50 mm depth

80 mm depth100 mm depth

120 mm depth150 mm depth

10 mm / 6 mm

3.8 g

6.0 g

7.5 g 

9.0 g 

11.3 g

12 mm / 8 mm

4.7 g 

7.5 g

9.4 g

11.3 g

14.1 g

14 mm / 10 mm

5.7 g

9.0 g

11.3 g

13.6 g

17.0 g


Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
Application steps

SUBSTRATE QUALITY

CONCRETE, MASONRY, MORTAR OR 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.

CERAMICS OR GLASS

IMPORTANT

Siliconised surfaces

The Product will not adhere to substrates with a siliconised surface.

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 the Product's performance.

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

 

CONCRETE, MASONRY, MORTAR OR STONE

Suitable techniques for substrate preparation include the following:

  • Abrasive blast cleaning

  • Needle gunning

  • Light scabbling

  • Bush hammering

  1. 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

  1. 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

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

CERAMICS OR GLASS

  1. Prepare the substrate by 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

  1. IMPORTANT Mix full units only. Prior to mixing all parts, mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm).
  2. 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.
  3. IMPORTANT Do not over mix. 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 APPLICATIONS

  1. IMPORTANT On damp prepared concrete substrates, always apply by brush and work the Product well into the substrate. Apply the mixed the Product to the prepared substrate by brush, roller, spray or trowel ensuring uniform and complete coverage.
  2. For optimum adhesion, apply the adhesive to both substrates that require bonding.
  3. For bonding wet fresh concrete to hardened prepared concrete, place the concrete whilst the resin layer is still tacky. Note If the product becomes glossy and loses tackiness, apply another coat and proceed to place concrete.

ANCHORING APPLICATIONS

  1. For small anchors or fasteners, clean the hole thoroughly with a special round steel brush and with compressed air (minimum pressure 6 bar), starting from the bottom.
  2. Once the hole is completely clean and free of any loose particles or dust, pour the Product in the hole, avoiding entrapping air.
  3. Insert the anchor or fastener with a rotary motion within the adhesive open time. Note Some of the adhesive must flow out of the hole. 
  4. During the resin hardening time the anchor must not be moved or loaded

SIKA® ICOSIT® KC SYSTEM APPLICATIONS

For information on the application of Sikadur®-32+ in conjunction with a Sika® Icosit® KC system, refer to the relevant product Method Statement or contact Sika Technical Service for advice.

 

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