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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
 
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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 / Certifications / Approvals

SUSTAINABILITY

  • Conforms with LEED v4 MR credit: Building product disclosure and optimization — Environmental Product Declarations (option 1)

  • Conforms with LEED v4 MR credit: Building product disclosure and optimization — Material ingredients (option 2)

  • Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institute für Bauen und Umwelt e.V. (IBU)

APPROVALS / CERTIFICATES

  • Czech Republic: Technical Approval, ITC, Nr. STO-AO 224-1012/2020

  • Technical Approval, CSTB, Avis Technique 3.3/19-1005_V1

  • Certificate of Technical Valuation, CSLLPP, No. 209/2019

  • National Technical Assessment Sika CarboDur® kit, ITB, No. ITB-KOT-2019/0415 v.1

  • National Technical Assessment Sika CarboDur® kit, ITB, Approval No. ITB-KOT-2018/0414 v.2

  • Technical Approval Sika CarboDur, Nr. IBDiM-KOT-2019-0361 v.2

  • Technical Agreement, CTPC, No. 016-011401-2019

  • Slovakia: Technical Assessment, TSUS, No. SK04-ZSV-2669

  • Technical Approval, DIT, No. N604R/19

  • Test Report, Ministry of Regional Development (Ukraine), No. ЗНТ–219–2167.13-001

 
Product Information

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 information

System structure

  • Substrate primer: Sikadur®-300 / Sikadur®-330

  • Impregnating / laminating resin: Sikadur®-300

  • Structural strengthening fabric: SikaWrap® type to suit requirements
Technical Information

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

Application Information

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

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"
Application steps

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.

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