Sikadur®-42 HS
High strength pourable epoxy grout
Sikadur®-42 HS is a 3-part pourable grout based on a combination of epoxy resins and specially graded aggregates. After mixing, it forms a flowable mortar, suitable for grouting and filling.
- Precision grouting/casting. Holding down bolts and machines may be grouted to tolerance before or after positioning.
- Excellent initial strength. Substantial loading may be applied after only six hours and high strength reached after 24 hours at 20 °C. No primer is required.
- Easy to use. The ease and simplicity of Sikadur®-42 HS reduces waiting time and labour.
- Excellent mechanical strength
- Hardens even at high humidity
- Excellent resistance against abrasion impact and vibration
- Components of different colour – therefore good control of homogeneity during mixing
- Can be applied on dry and damp surfaces (no standing water)
- Good flow characteristics even in thin layers
Usage
- As a self-levelling mortar on concrete, stone, mortar, plasterwork, steel, aluminium, iron, asbestos sheet, wood, polyester, epoxy, etc.
- In rigid connections as in connecting irons, iron ties, mounting supports, tie-rods, etc.
- Grouting of guide rails, rail posts, support plates, machine foundations, bridge supports, sleeper-less rail fixations, track bases for cranes and heavy equipments
Advantages
- Precision grouting/casting. Holding down bolts and machines may be grouted to tolerance before or after positioning.
- Excellent initial strength. Substantial loading may be applied after only six hours and high strength reached after 24 hours at 20 °C. No primer is required.
- Easy to use. The ease and simplicity of Sikadur®-42 HS reduces waiting time and labour.
- Excellent mechanical strength
- Hardens even at high humidity
- Excellent resistance against abrasion impact and vibration
- Components of different colour – therefore good control of homogeneity during mixing
- Can be applied on dry and damp surfaces (no standing water)
- Good flow characteristics even in thin layers
Packaging
| Part A - resin | 2.47 kg |
| Part B - hardener | 0.77 kg |
| Part C - aggregate | 21.76 kg |
| Part A + B + C | 25 kg set |
Colour
| Part A | Transparent |
| Part B | Transparent |
| Part C | Grey |
| Parts A + B + C (mixed) | Dark grey |
Product Details
Composition
Epoxy
Shelf Life
24 months from the date of production
Storage Conditions
Store properly in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Keep away from direct sunlight.
Density
~2.0 kg/L (A+B+C) at 25 °C
Flash Point
| Part A (Resin) | 215 °C |
| Part B (Hardener) | 163 °C |
Compressive Strength
| 1 day | ~75 N/mm² |
| 7 days | ~100 N/mm² |
Effective Bearing Area
| 1" clearance | High (> 85 %) |
| 2" clearance | High (> 85 %) |
Tensile Strength in Flexure
| 7 days | ~32 N/mm² |
Modulus of Elasticity in Flexure
| 7 days | ~17.2 GPa |
Tensile Strength
| 7 days | ~13.8 N/mm² |
Shrinkage
| 0.014 % (unrestrained, linear) | (ASTM C 531) |
Creep
| 2.8 Mpa load | 3.8 × 10-3 |
| 4.1 Mpa load | 4.2 × 10-3 |
Tensile Adhesion Strength
Concrete
| 1 day | ≥ 3 N/mm² |
| 7 days | ≥ 3 N/mm² |
Coefficient of Thermal Expansion
| 32.2 × 106 cm/cm/°C | (ASTM C 531) 23–99 °C |
Flow Rate
| Clearance | Back of box | Full plate contact |
| 1" | 11 minutes | 13 minutes |
| 2" | 4 minutes, 45 seconds | 5 minutes |
Shear Adhesion
| 7 days (To steel) | ~14 N/mm² |
Application
Mixing Ratio
A : B : C = 3.2 : 1 : 28.3 (parts by weight)
Layer Thickness
| Minimum | 12 mm (per layer) |
| Maximum | 150 mm (per layer) |
Ambient Air Temperature
+20 °C min. / +40 °C max.
Substrate Temperature
+20 °C min. / +40 °C max.
Pot Life
50–60 minutes (25 kg, +32 °C)
Consumption
1 m³ (1000 L) = approximately 80 sets (not inclusive of wastage)
Yield
12.5 L of grout per 25 kg set
SUBSTRATE QUALITY
Substrate and contact area of base plate must be clean, sound and free from all loose and poorly adhered parts. All oil, dirt, debris, paint and loosely adhered parts must be removed by means of an abrasive and/or mechanical process.
SUBSTRATE PREPARATION
Concrete Surface
New concrete must be at least 3 weeks old and have a compressive strength of 25 MPa. The surface must be prepared mechanically using a scabbler, bush-hammer, shotblast or other suitable equipment to remove cement laitence and achieve an open textured surface. Removed all residue with a vacuum cleaner and repair defective areas, if any, with Sikadur®-41 CF Normal. Allow to cure.
Base Plates
Sandblasts the bottom of the baseplates and wipe clean with an approved metal-cleaning solvent.
Form Preparation
Forms must be strong and liquid tight to prevent leakages. Seal all gaps and brace the forms. Apply the surface of the forms with paste wax or use other bond breaking materials to prevent adhesion of the epoxy grout. The forms should also be high enough to permit Sikadur®-42 HS to be brought up to the side of the base plates.
MIXING
Mix all of Part B (hardener) with all of Part A (resin) for at least 2 minutes with a slow speed electric drill (maximum 500 rpm) until a smooth consistency and streakfree colour is achieved. Then add all of Part C (aggregates) and continue mixing until a homogeneous mortar is obtained. Use immediately.
For large volume pours, a pan mixer may be used to mix in the Part C.
CLEANING OF TOOLS
Clean all tools and application equipment with a solvent, Thinner C, immediately after use. Hardened and/or cured material can only be mechanically removed.