Sikadur®-52 Injection Normal
Epoxy low viscosity injection resin - normal pot life
Sikadur®-52 Injection Normal is a 2-part, epoxy, low viscosity, normal pot life, injection resin specially formulated for crack injection work by either pressure injection or gravity feed techniques.
- Injection temperature range +5 °C to +30 °C
- Good adhesion to concrete, masonry, stone, steel and wood substrates
- Suitable for both, dry and damp conditions
- Maximum crack width 5,0 mm
- Good mechanical properties
- Two grades for different climatic conditions
- High mechanical and adhesive strengths
- Hard but not brittle
- Low viscosity
- Injectable with single component pumps
Areas of Application
Sikadur®-52 Injection Normal may only be used by experienced professionals.- Crack injection resin
- Fills and seals voids and cracks in structures such as bridges, civil engineering structures, industrial and residential buildings, e.g. columns, beams, foundations, walls, floors and water retaining structures.
- Structural bonding
- Preventing ingress of water and infiltration of reinforcement corrosion promoting substances
Advantages
- Injection temperature range +5 °C to +30 °C
- Good adhesion to concrete, masonry, stone, steel and wood substrates
- Suitable for both, dry and damp conditions
- Maximum crack width 5,0 mm
- Good mechanical properties
- Two grades for different climatic conditions
- High mechanical and adhesive strengths
- Hard but not brittle
- Low viscosity
- Injectable with single component pumps
Packaging
| Parts A+B | 1 kg pre-batched unit Box of 10 units |
| Bulk | On request |
Refer to current price list for packaging variations.
Color
| Part A | Transparent |
| Part B | Brownish |
| Part A+B mixed | Yellowish-brownish |
Product Details
APPROVALS / CERTIFICATES
- CE Marking and Declaration of Performance to EN 1504-5 - Concrete injection
- Fire Testing DIN EN 13501-1, Sikadur®-52 Injection Normal, MPA Braunschweig, Test report No. K-3604/805/13-MPA BS
Shelf life
24 months from date of production
Storage conditions
The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Always refer to packaging.
Density
| Part A | 1,121 kg/l |
| Part B | 1,006 kg/l |
| Part A+B mixed | 1,1 kg/l |
all values at +22 °C
Viscosity
| Temperature | Part A+B mixed |
| +10 °C | ~1200 mPa·s |
| +20 °C | ~430 mPa·s |
| +30 °C | ~220 mPa·s |
Compressive strength
| Time | +5 °C | +23 °C | +30 °C |
| 1 day | - | 32 N/mm2 | 43 N/mm2 |
| 3 days | 11 N/mm2 | 52 N/mm2 | 51 N/mm2 |
| 7 days | 53 N/mm2 | 55 N/mm2 | 55 N/mm2 |
Modulus of elasticity in compression
| Time | +5 °C | +23 °C | +30 °C |
| 1 day | - | 700 N/mm2 | 650 N/mm2 |
| 3 days | 650 N/mm2 | 1100 N/mm2 | 1000 N/mm2 |
| 7 days | 1500 N/mm2 | 1250 N/mm2 | 1000 N/mm2 |
Tensile strength in flexure
| Time | +5 °C | +23 °C | +30 °C |
| 1 day | - | 36 N/mm2 | 51 N/mm2 |
| 3 days | 11 N/mm2 | 59 N/mm2 | 60 N/mm2 |
| 7 days | 38 N/mm2 | 63 N/mm2 | 67 N/mm2 |
Modulus of elasticity in flexure
| Time | +5 °C | +23 °C | +30 °C |
| 1 day | - | 850 N/mm2 | 1450 N/mm2 |
| 3 days | 700 N/mm2 | 1400 N/mm2 | 1600 N/mm2 |
| 7 days | 1500 N/mm2 | 1600 N/mm2 | 1750 N/mm2 |
Tensile strength
| Time | +5 °C | +23 °C | +30 °C |
| 1 day | - | 23 N/mm2 | 26 N/mm2 |
| 3 days | 5 N/mm2 | 35 N/mm2 | 39 N/mm2 |
| 7 days | 30 N/mm2 | 37 N/mm2 | 37 N/mm2 |
Tensile adhesion strength
Concrete:
| > 4 N/mm2 (failure in concrete) (after 7 days at + 23 °C) | (acc. to DafStb-Richtlinie, Part 3) |
Coefficient of thermal expansion
| ~8,9×10-5 1/K | (EN ISO 1770) |
(linear expansion between -20 °C and +40 °C)
Application
Mixing ratio
Part A : Part B = 2 : 1 parts by weight
Substrate temperature
+5 °C min. / +30 °C max
Substrate moisture content
Dry or damp (SSD - Saturated Surface Dry: no standing water)
Pot Life
| Temperature | 1 kg |
| +5 °C | ~120 minutes |
| +10 °C | ~80 minutes |
| +23 °C | ~25 minutes |
| +30 °C | ~10 minutes |
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).
Yield
1 kg of injection resin: ~0,93 L
SUBSTRATE QUALITY
Substrate surfaces along the line of the crack capping sealer i.e. Sikadur®-31 CF Rapid, must be sound, clean, dry or matt damp. Free from standing water, ice, dirt, oil, grease, coatings, laitance, efflorescence, old surface treatments, all loose particles and any other surface contaminants that could affect adhesion.
Cracks must be clean.
SUBSTRATE PREPARATION
After inserting or bonding injection ports, cap the crack with a capping sealer, allow to cure then purge cracks with resin until the resin runs clean and contaminant free.
MIXING
Add all of Part B to Part A. Mix with a mixing spindle attached to a slow speed electric (max. 250 rpm) for at least 3 minutes. Over mixing must be avoided to minimise air entrainment. Mix full units only.
CLEANING OF EQUIPMENT
Clean all tools and application equipment using the Sika® Injection Cleaning System in accordance with the Product Data Sheet. Hardened material can only be mechanically removed.