Sikadur®-33
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
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
Interior, vertical and overhead repair of:
- Corners and edges
- Hole and void filling
- Joint arrises
- Crack filling and sealing (non-moving)
- Fixing and fastening of handrails, railings, balustrades and supports
- Fixing of window and door frames
- 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
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
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) |
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 days | Blastcleaned steel | >10 N/mm2 |
| 3 days | Dry 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
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 °C | 90 minutes |
+35 °C | 45 minutes |
Minimum cartridge temperature +10 °C
Curing time
Temperature | Curing Time Tcur |
+10 °C | 3 days* |
| +20 °C | 2 days* |
+35 °C | 1 day* |
*To achieve approx. 80% of the performance
Minimum cartridge temperature +10 °C
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.
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.