Product Data Sheet Show all documents
Sikadur®-32 Normal

Sikadur®-32 Normal

2-component structural epoxy bonding agent

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

Sikadur®-32 Normal has the following advantages:
  • Easy to mix and apply
  • Suitable for dry and damp concrete surfaces
  • Very good adhesion to most construction materials
  • High bond strength
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Impermeable to liquids and water vapour
  • Good chemical resistance
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Product Data Sheet Show all documents

Usage

Sikadur®-32 Normal is used as a structural bonding agent and adhesive for:
  • Concrete elements (including bonding fresh to hardened concrete)
  • Hard natural stone
  • Ceramics, fibre-cement
  • Mortar, Bricks, Masonry
  • Steel, Iron, Aluminium
  • Wood
  • Polyester / fibreglass and Epoxy resin materials
  • Glass
 

Advantages

Sikadur®-32 Normal has the following advantages:
  • Easy to mix and apply
  • Suitable for dry and damp concrete surfaces
  • Very good adhesion to most construction materials
  • High bond strength
  • Hardens without shrinkage
  • Different coloured components (for mixing control)
  • No primer needed
  • High initial and ultimate mechanical strength
  • Impermeable to liquids and water vapour
  • Good chemical resistance

Packaging

5 kg (A+B)Pre-batched unit
pallets of 450 kg (90 x 5 kg)

Colour

Component A: white
Component B: dark grey
Components A+B mixed: concrete grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • Structural bonding agent tested according to EN 1504-4, provided with the CE-mark
Product Information

Chemical Base

Epoxy resin

Shelf Life

24 months from date of production

Storage Conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

Density

1.4 ± 0.1 kg/l (component A+B mixed) (at +23 °C)
Technical Information

Compressive Strength

Curing time

Curing temperature

+10 °C

+23 °C

+30 °C

1 day−~24 N/mm2~30 N/mm2
3 days~13 N/mm2~28 N/mm2~41 N/mm2
7 days~32 N/mm2~39 N/mm2~52 N/mm2
14 days~42 N/mm2~49 N/mm2~56 N/mm2

 Compressive strength at 4 % elongation

Modulus of Elasticity in Compression

~ 3 250 N/mm2 (14 days at +23 °C)(ASTM D 695-95)

Flexural Strength

Curing time

Curing temperature

+10 °C

+23 °C

+30 °C

1 day−~29 N/mm2~52 N/mm2
3 days~12 N/mm2~48 N/mm2~57 N/mm2
7 days~24 N/mm2~50 N/mm2~60 N/mm2
14 days~42 N/mm2~56 N/mm2~65 N/mm2

Flexural E-Modulus

~ 3 600 N/mm2 (14 days at +23 °C)(DIN EN ISO 178)

Tensile Strength

Curing time

Curing temperature

+10 °C

+23 °C

+30 °C

1 day−~16 N/mm2~24 N/mm2
3 days−~25 N/mm2~30 N/mm2
7 days~20 N/mm2~32 N/mm2~33 N/mm2
14 days~25 N/mm2~33 N/mm2~34 N/mm2

Tensile Adhesion Strength

Curing timeSubstrateCuring temperature

Adhesion strength

7 days

Concrete dry

+10 °C

> 3 N/mm2 *

7 days

Concrete moist

+10 °C

> 3 N/mm2 *

1 daySteel+10 °C~8 N/mm2
3 daysSteel+10 °C~12 N/mm2
3 daysSteel+23 °C~13 N/mm2
3 daysSteel+30 °C~15 N/mm2

*100% concrete failure

Shrinkage

Hardens without shrinkage.

Coefficient of Thermal Expansion

8.2 × 10−5 1/K (Temperature range +23 °C − +60 °C)

(EN 1770)

Heat Deflection Temperature

Curing time

Curing temperature

HDT

7 days+23 °C+46 °C

(thickness 10 mm)

Application

Application Information

Mixing Ratio

Component A : component B = 2 : 1 by weight or volume

Layer Thickness

~ 1 mm max in one application.Multiple layers can be used to achieve required final thickness.Wait for each previous layer to harden before applying next layer.

Sag Flow

On vertical surfaces it is non-sag up to ~ 1 mm thickness.(EN 1799)

Product Temperature

Sikadur®-32 Normal must be applied at temperatures between +10 °C and +30 °C.

Ambient Air Temperature

+10 °C min. / +30 °C max.

Dew Point

Beware of condensation.
Substrate temperature during application must be at least 3 °C above dew point.

Substrate Temperature

+10 °C min. / +30 °C max.

Pot Life

Temperature

Potlife*

Open time

+10 °C

~ 145 minutes

–

+23 °C

~ 55 minutes

~ 120 minutes
+30 °C~ 35 minutes~ 60 minutes

*200 g

The potlife begins when the resin and hardener 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 portions. Another method is to chill components A+B before mixing them (not below +5 °C).
Consumption

Consumption

The consumption of Sikadur®-32 Normal is ~ 1.3 kg/m2 per mm of thickness.
Application steps

SUBSTRATE QUALITY

Hardened mortar and concrete must be older than 28 days (depending on any minimal strength requirements).
Verify the substrate strength by testing (concrete, masonry, natural stone).
The substrate surface (all types) must be clean, dry or mat damp (no standing water) and free from contaminants such as dirt, oil, grease, existing surface treatments and coatings etc.
Steel substrates must be de-rusted to a condition similar to Sa 2.5.
The substrate must be sound and all loose or friable particles must be removed.

SUBSTRATE PREPARATION

Concrete, mortar, stone and brick
Concrete and other hardened mineral substrates must be prepared by suitable means such as high pressure water jetting and / or blast cleaning, in order to obtain surfaces that are sound, clean, dry or mat damp (no standing water) and free from any cement laitance, ice, grease, oils, old coatings or other surface treatments. Any loose or friable particles must also be removed to achieve a contaminant free and open textured surface.
Steel
Steel surfaces must be cleaned and prepared thoroughly to the acceptable quality standard equivalent to Sa 2.5 i.e. normally by blast cleaning and then removing any dust by vacuum. Avoid dew point conditions.

 

MIXING

Pre batched units (A & B Components):
Mix components for at least 3 minutes with a suitable mixing spindle for the pack size. Spindle should be securely attached to a slow speed electric drill (max. 300 rpm). Mix until the material becomes a smooth consistency and a uniform grey colour. Avoid air entrapment at all times to a minimum while mixing. After 1st mix, pour this mix into a clean container and stir again for approximately 1 more minute. Do not part mix the pre batched units.When mixing large quantities of units,mix only the required quantity of units that can be used within their potlife.

CLEANING OF TOOLS

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

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