Product Data Sheet
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Sikadur®-33

High Modulus, High-Strength, Structural, Rapid Curing Epoxy, Smooth-Paste Adhesive

Sikadur-33 is a 2-component, 100% solids, moisture-tolerant, high-modulus, high-strength, structural, smooth-paste epoxy adhesive.

  • Can be used on damp concrete
  • Excellent adhesion to the substrate
  • Non-sag, also overhead
  • High load capacity
  • Shrinkage-free hardening
  • Styrene-free
Product Data Sheet
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Usage

As a structural adhesive for:
  • Concrete elements
  • Hard natural stone
  • Ceramics, fibre cement
  • Mortar, Bricks, Blocks, Masonry, render etc.
  • Steel, Iron, Aluminium
  • Wood
  • Polyester, Epoxy
For concrete repairs
Interior, vertical and overhead repair of:
  • Corners and edges
  • Hole and void filling
  • Joint arrises
Joint filling and crack sealing:
  • Crack filling and sealing (non-moving)
Metalwork, carpentry:
  • Fixing and fastening of handrails, railings, balustrades and supports
  • Fixing of window and door frames
  For use in the following:
  • Concrete
  • Hard natural stone
  • Solid rock
  • Hollow and solid masonry
  • Steel
  • Wood

Advantages

  • Can be used on damp concrete
  • Excellent adhesion to the substrate
  • Non-sag, also overhead
  • High load capacity
  • Shrinkage-free hardening
  • Styrene-free

Packaging

2.7 kg kit (2 litres)

27 kg kit (20 litres)

Colour

Component A: white
Component B: grey
Components A + B mixed: Concrete grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Adhesive for structural bonding tested according to EN 1504-4, provided with the CE-mark
  • Potable Water approved to AS4020:2018 - Testing of products for use in contact with drinking water.
  • Qld Roads (TMR) Section 5. Registered and Conforming Products. Part 5.18 Epoxy paste for Bearing Installation
Product Information

Composition

Epoxy resin

Shelf life

12 months from date of production

 

Storage conditions

Store in original, unopened, sealed and undamaged packaging in dry conditions at temperatures between +10 °C and +30 °C. Protect from direct sunlight.

Density

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

Compressive strength

                           

Curing time 

Curing temperature

+23 °C

1 day

~30 N/mm2

7 days

~40 N/mm2

14 days~43 N/mm2

14 days

~50 N/mm2

Tensile strength in flexure

Curing time

Curing temperature

+23 °C

14 days

~20 N/mm2

Tensile strength

Curing time

Curing temperature

+23 °C

14 days

~13 N/mm2

Tensile adhesion strength

Curing time

Substrate

Adhesion strength

3 days

Dry concrete

>5 N/mm2*

3 days

Dry concrete		>5 N/mm2*
3 daysBlastcleaned steel>10 N/mm2
3 daysDry brick>1.5 N/mm2**

*100% concrete failure

**100% brick failure

Shrinkage

Hardens without shrinkage

Coefficient of thermal expansion

9.3 x 10−5 per °C (Temp. range +23 °C − +60 °C)

(EN 1770)

Glass transition temperature

+49°C (7 days / +23°C)

(EN 12614)

Application

Application Information

Mixing ratio

Component A : component B = 1 : 1 by volume

Layer thickness

0.5 mm min. / 10 mm max.

Sag flow

Non-sag, suitable for overhead applicaiton

Ambient air temperature

+10 °C min. / +35 °C max.

Relative air humidity

85% max. (at 25 °C)

Dew point

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

Substrate temperature

+10 °C min. / +35 °C max.

Substrate moisture content

Substrate must be dry or mat damp (no standing water)

Pot Life

60 minutes (+23°C)

Open Time

Temperature

Open Time Tgel

+10 °C

210 minutes

+20 °C90 minutes

+35 °C

45 minutes

Minimum cartridge temperature +10 °C

Curing time

Temperature

Curing Time Tcur

+10 °C

3 days*

+20 °C2 days*

+35 °C

1 day*

*To achieve approx. 80% of the performance

Minimum cartridge temperature +10 °C
Consumption

Consumption

~1.35 kg/m2 per mm of thickness. This figure is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level or wastage etc.
Application steps

SUBSTRATE QUALITY

Mortar and concrete must be older than 28 days.
Adequate substrate strength (concrete, masonry, natural stone) must always be confirmed.

MIXING

Pre-mix each component. Proportion equal parts by volume of Component „B‟ and Component „A‟ into a clean pail. Mix thoroughly for 3 minutes with Sika paddle on low speed (400-600 rpm) drill until uniform in colour. Mix only the quantity that can be used within its potlife.

CLEANING OF EQUIPMENT

Uncured material may be cleaned from application tools, etc. by using Sika Colma Cleaner (flammable solvent). Cured material can only be removed mechanically.

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