Product Data Sheet
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Sikadur®-300

Epoxy impregnating and laminating resin for SikaWrap® structural strengthening fabrics

Sikadur®-300 is a two-part, epoxy-based, impregnating and laminating resin for SikaWrap® structural strengthening fabrics.

  • 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
 
Product Data Sheet
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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
Please note:
  • The Product may only be used by experienced professionals.

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

Part A

14,88 kg pre-batched unit

Part B

5,12 kg pre-batched unit

Refer to the current price list for available packaging variations.

Colour

Part A

amber / liquid

Part B

pale yellow / liquid

Parts A + B mixed

light-yellow / liquid

Product Details

Sustainability / Certifications / Approvals

ENVIRONMENTAL INFORMATION

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building product disclosure and optimization — Environmental Product Declarations under LEED® v4 — 1 point

  • Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4 — 1 point

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

APPROVALS / STANDARDS

  • National Technical Assessment, Sika CarboDur® kit, ITB, No. ITB-KOT-2019/0415 v.2

  • National Technical Assessment, Sika CarboDur® kit, ITB, Approval No. ITB-KOT-2018/0414 v.3

  • Technical Approval Sika CarboDur, Nr. IBDiM-KOT-2019-0361 v.5

  • Technical Approval, CSTB, Avis Technique, Approval No. 3.3/19-1005_V3

  • Technical Approval, DIT, No. N604R/19

  • Technical Agreement, CTPC, No. 016-01/488-2022

  • Certificate of Technical Valuation, CSLLPP, Certificate No. 259/2023

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

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

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

Chemical Base

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.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Density

Mixed resin ~1,16 kg/l

Value at +23 °C.

Product Declaration

EN 1504-4: Structural bonding

Viscosity

Shear rate: 50 /s

Temperature

Viscosity

+15 °C

1000 mPa·s

+23 °C

750 mPa·s

+40 °C

300 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

Product 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: SikaWrap® manual wet application - Ref 850 41 03

  • Method Statement: SikaWrap® saturator machine wet application - Ref 850 41 04
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

  1. Mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm).
  2. IMPORTANT Mix full units only.Add both parts into a clean and dry container.
  3. Mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved
  4. IMPORTANT Avoid entraining air into the mix by over-mixing. To ensure thorough mixing, pour materials into a clean container and mix again for 1 minute.

BULK CONTAINER

  1. IMPORTANT Mix only the quantity which can be used within its pot life. Mix part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm).
  2. Add both parts in the correct proportion into a suitable clean, dry container.
  3. Mix parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved.
  4. IMPORTANT Avoid entraining air into the mix by over-mixing. To ensure thorough mixing, pour materials into a clean container and mix again for 1 minute.

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 TOOLS

Clean all tools and application equipment with Sika® Colma Cleaner immediately after use. Hardened material can only be removed mechanically.

 

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