Sikadur®-300
EPOXY IMPREGNATING RESIN FOR SIKAWRAP® STRUCTURAL STRENGTHENING FABRICS
Sikadur®-300 is a 2-part, epoxy-based impregnating / laminating resin for SikaWrap® structural strengthening fabrics. Suitable to use in hot and tropical climatic conditions.
- Easy to mix
- Application by impregnation roller
- Formulated for manual or mechanical saturation methods
- Good adhesion to many substrates
- High mechanical properties
- Extra-long pot life
Usage
- As an impregnating / laminating resin for the SikaWrap® fabric reinforcement wet application method
- As a substrate primer for the wet application method
Advantages
- Easy to mix
- Application by impregnation roller
- Formulated for manual or mechanical saturation methods
- Good adhesion to many substrates
- High mechanical properties
- Extra-long pot life
Packaging
Please refer to local country price list for available packaging sizes:
| Part A | 14.88 kg pre-batched unit | 22.305 kg pre-batched unit |
| Part B | 5.12 kg pre-batched unit | 7.695 kg pre-batched unit |
| Part A+B | 20 kg | 30 kg |
Colour
Part A | amber / liquid |
Part B | pale yellow / liquid |
Parts A + B mixed | light-yellow / liquid |
Product Details
SUSTAINABILITY
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Conforms with LEED v4 MR credit: Building product disclosure and optimization — Environmental Product Declarations (option 1)
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Conforms with LEED v4 MR credit: Building product disclosure and optimization — Material ingredients (option 2)
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Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institute für Bauen und Umwelt e.V. (IBU)
APPROVALS / CERTIFICATES
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Czech Republic: Technical Approval, ITC, Nr. STO-AO 224-1012/2020
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Technical Approval, CSTB, Avis Technique 3.3/19-1005_V1
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Certificate of Technical Valuation, CSLLPP, No. 209/2019
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National Technical Assessment Sika CarboDur® kit, ITB, No. ITB-KOT-2019/0415 v.1
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National Technical Assessment Sika CarboDur® kit, ITB, Approval No. ITB-KOT-2018/0414 v.2
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Technical Approval Sika CarboDur, Nr. IBDiM-KOT-2019-0361 v.2
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Technical Agreement, CTPC, No. 016-011401-2019
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Slovakia: Technical Assessment, TSUS, No. SK04-ZSV-2669
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Technical Approval, DIT, No. N604R/19
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Test Report, Ministry of Regional Development (Ukraine), No. ЗНТ–219–2167.13-001
Product declaration
EN 1504-4: Structural bonding
Composition
Epoxy resin
Shelf life
24 months from date of production
Storage conditions
The product must be stored in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C.
Always refer to packaging.
Density
Mixed resin ~1.16 kg/l
Value at +23 °C.
Viscosity
Shear rate: 50 /s
Temperature | Viscosity |
+15 °C | ~2000 mPa·s |
+23 °C | ~700 mPa·s |
+40 °C | ~200 mPa·s |
System structure
Substrate primer: Sikadur®-300 / Sikadur®-330
Impregnating / laminating resin: Sikadur®-300
Structural strengthening fabric: SikaWrap® type to suit requirements
Modulus of elasticity in flexure
~2800 N/mm2 (7 days at +23 °C) | (DIN EN 1465) |
Tensile strength
~45 N/mm2 (7 days at +23 °C) | (EN ISO 527-2) |
Tensile adhesion strength
Concrete fracture (> 4 N/mm2) on sandblasted substrate | (EN ISO 4624) |
Coefficient of thermal expansion
| ~6.0 × 10−5 (± 0.2 × 10–5) 1/K (linear expansion between -20 °C and +40 °C) | (EN 1770) |
Service temperature
| Maximum | +45 °C |
| Minimum | –40 °C |
Glass transition temperature
Curing time | Curing temperature | TG |
30 days | +30 °C | +53 °C |
Heat deflection temperature
| Curing time | Curing temperature | HDT |
| 7 days | +15 °C | +43 °C |
| 7 days | +23 °C | +49 °C |
| 3 days | +40 °C | +60 °C |
| 7 days | +40 °C | +66 °C |
Resistant to continuous exposure +45 °C.
Application
Mixing ratio
Part A : Part B = 100 : 34,5 by weight
Material temperature
Maximum | +40 °C |
Minimum | +15 °C |
Ambient air temperature
Maximum | +40 °C |
Minimum | +15 °C |
Dew point
Beware of condensation.
The substrate and uncured applied resin must be at least +3 °C above dew point to reduce the risk of condensation or blooming on the resin surface.
Substrate temperature
Maximum | +40 °C |
Minimum | +15 °C |
Substrate moisture content
≤ 4 % parts by weight
The following test methods can be used: Sika®-Tramex meter, CM-measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).
Pot Life
Temperature | Pot life | Open time |
+15 °C | ~3 hours | ~6 hours |
+23 °C | - | ~4 hours |
+40 °C | ~60 minutes | ~90 minutes |
The pot life 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 pot life. 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).
Consumption
Guide: ~0.6 – 1.0 kg/m2
Also refer to:
- "Method Statement for SikaWrap® manual wet application"
- "Method Statement for SikaWrap® saturator machine wet application"
SUBSTRATE QUALITY
Substrates must be structurally sound and of sufficient tensile strength to provide a minimum tensile strength of 1.0 N/mm2 or as required in the design specification.
Reference must be made to the Sika® Method Statements:
- Method Statement: SikaWrap® manual wet application - Ref 850 41 03
- Method Statement: SikaWrap® saturator machine wet application - Ref 850 41 04
SUBSTRATE PREPARATION
Reference must be made to the Sika® Method Statements:
- Method Statement: SikaWrap® manual wet application - Ref 850 41 03
- Method Statement: SikaWrap® saturator machine wet application - Ref 850 41 04
MIXING
PRE-BATCHED UNIT
- Mix only the quantity which can be used within its pot life
- Prior to mixing all parts, mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm).
- Add part B (hardener) to part A and mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved.
- To ensure thorough mixing pour materials into a clean container and mix again for approximately 1 minute. Over mixing must be avoided to minimise air entrainment. Mix full units only. Mixing time for A+B = 4.0 minutes.
BULK CONTAINER
- Mix only the quantity which can be used within its pot life.
- Prior to mixing all parts, mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm).
- Add both parts in the correct proportion into a suitable clean, dry container and mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved.
- To ensure thorough mixing pour materials into a clean container and mix again for approximately 1 minute. Over mixing must be avoided to minimise air entrainment. Mixing time for A+B = 4.0 minutes.
APPLICATION
Reference must be made to the Sika® Method Statements:
- Method Statement: SikaWrap® manual wet application - Ref 850 41 03
- Method Statement: SikaWrap® saturator machine wet application - Ref 850 41 04
CLEANING OF EQUIPMENT
Clean all tools and application equipment immediately after use with Sika® Colma Cleaner. Hardened material can only be removed mechanically.