Sikadur®-300
Sikadur®-300 is a 2-component, epoxy based impregnating resin. Suitable for use in hot and tropical climatic conditions.
- Easy mix and application by trowel and impregnation roller
- Manufactured for manual or mechanical saturation methods
- Good adhesion to many substrates
- High mechanical properties
- Extra long pot life
Usage
Sikadur®-300 is used as- Impregnating resin for SikaWrap® fabric reinforcement for the wet application method
- Primer resin for the wet application system
Advantages
- Easy mix and application by trowel and impregnation roller
- Manufactured for manual or mechanical saturation methods
- Good adhesion to many substrates
- High mechanical properties
- Extra long pot life
Packaging
| Component A | 22.305 kg |
| Component B | 7.695 kg pails |
Colour
Component A: light yellow to amber liquid Component B: pale yellow to clear liquid Components A + B: light yellow to clear liquid
Product Details
APPROVALS / CERTIFICATES
- Road and Bridges Research Institute (Poland): IBDiM No AT/2008-03-336/1.
- Adhesive for structural bonding tested according to EN 1504-4,
Composition
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
| 1.16 kg/l (mixed component A + B) (+23 °C) |
Viscosity
Shear rate: 50/s
| Temperature | Viscosity |
| +15 °C | ~2 000 mPas |
| +23 °C | ~700 mPas |
| +40 °C | ~200 mPas |
System Structure
Substrate primer: Sikadur®-330 / Sikadur®-300. Impregnating/laminating resin: Sikadur®-300. Structural strengthening fabric: SikaWrap® type to suit requirements.
Modulus of Elasticity in Flexure
| ~2 800 N/mm2 (7 d, +23 °C) | (DIN EN 1465) |
Tensile Strength
| ~45 N/mm2 (7 d, +23 °C) | (ISO 527) |
Tensile Adhesion Strength
| Concrete fracture (> 4 N/mm2) on sandblasted substrate | (EN ISO 4624) |
Coefficient of Thermal Expansion
| 6.0 x 10−5 per °C (Temperature range -20 °C min. / +40 °C max.) | (EN 1770) |
Glass Transition Temperature
| Curing time | Curing temperature | TG |
| 30 d | +30 °C | +53 °C |
Heat Deflection Temperature
| Curing time | Curing temperature | HDT |
| 7 d | +15 °C | +43 °C |
| 7 d | +23 °C | +49 °C |
| 3 d | +40 °C | +60 °C |
| 7 d | +40 °C | +66 °C |
Resistant to continuous exposure +45 °C.
Service Temperature
-40 °C min. / +45 °C max.
Application
Mixing Ratio
Component A : Component B = 100 : 34.5 (by weight) When using bulk material the exact mixing ratio must be safeguarded by accurately weighing and dosing each component.
Ambient Air Temperature
+15 °C min. / +40 °C max.
Dew Point
Beware of condensation.Substrate temperature during application must be at least 3 °C above dew point.
Substrate Temperature
+15 °C min. / +40 °C max.
Substrate Moisture Content
< 4 % pbw
Pot Life
| Temperature | Potlife | Open time |
| +15 °C | ~6 h | ~3 h |
| +23 °C | ~4 h | – |
| +40 °C | ~90 min | ~60 min |
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 and B before mixing them (not below +5 °C).
Consumption
See the "Method Statement for SikaWrap® manual wet application" reference 850 41 03 and the "Method Statement for SikaWrap® saturator machine wet application". Guide: 0.4 – 1.0 kg/m2
SUBSTRATE QUALITY
The substrate must be sound and of sufficient tensile strength to provide a minimum pull off strength of 1.0 N/mm2 or as per the requirements of the design specification. See also the "Method Statement for SikaWrap® manual wet application" and the "Method Statement for SikaWrap® saturator machine wet application".
SUBSTRATE PREPARATION
See the "Method Statement for SikaWrap® manual wet application" and the "Method Statement for SikaWrap® saturator machine wet application".
MIXING
Pre-batched units: Mix components A and B together for at least 3 minutes at low speed. Avoid aeration while mixing. Then, pour the whole mix into a clean container and stir again for approximately 1 more minute at low speed to keep air entrapment at a minimum.
Bulk packing, not pre-batched: Add the components in the correct proportions into a suitable mixing pail and stir correctly using an electric low speed mixer as above for pre-batched units.
CLEANING OF EQUIPMENT
Clean all equipment immediately with Sika® Colma Cleaner. Cured material can only be removed mechanically.