Product Data Sheet Show all documents

Sikadur®-300

High-Modulus, High-strength, 2-part epoxy Impregnating resin used with SikaWrap Structural Strengthening systems

Sikadur®-300 is a two-component 100% solids, moisture-tolerant, high strength, high modulus epoxy. Sikadur®-300 is an unfilled primer or impregnation resin with an extra-long pot life and a slow curing speed.
Sikadur®-300 is compliant with the 2012 and 2009 International Building Codes (IBC) and the 1997 Uniform
Building Code (UBC) per ICC-ES Evalutation Report ESR- 3288.

  • Easy mix and application by trowel and impregnation roller
  • Manufactured for manual or mechanical saturation methods
  • High mechanical properties
  • Extra-long pot life
  • Tolerant of moisture before, during and after cure
  • High strength, high modulus adhesive
  • Excellent adhesion to concrete, masonry metals, wood and most structural materials
  • Fully compatible and developed specifically for the SikaWrap® System
  • High temperature resistance
  • High abrasion and shock resistance
  • Solvent-free, VOC compliant
Product Data Sheet Show all documents

Usage

Sikadur®-300 may only be used by experienced professionals. Sikadur®-300 is used as
  • Impregnating resin for SikaWrap® fabric reinforcement for the wet application method
  • Primer resin for the wet application system
  • is used as a seal coat and impregnating resin for horizontal and vertical applications.
 

Advantages

  • Easy mix and application by trowel and impregnation roller
  • Manufactured for manual or mechanical saturation methods
  • High mechanical properties
  • Extra-long pot life
  • Tolerant of moisture before, during and after cure
  • High strength, high modulus adhesive
  • Excellent adhesion to concrete, masonry metals, wood and most structural materials
  • Fully compatible and developed specifically for the SikaWrap® System
  • High temperature resistance
  • High abrasion and shock resistance
  • Solvent-free, VOC compliant

Packaging

15lt kit

Colour

Component A: light-yellow to amber liquid
Component B: pale yellow to clear liquid
Components A + B mixed: light-yellow to clear liquid

Product Details

Sustainability / Certifications / Approvals

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, provided with the CE-mark
Product Information

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 (component A+B mixed) (at +23 °C)

Viscosity

Temperature

Viscosity

+15 °C

~2,000 cps

+23 °C

~700 cps

+40 °C~200 cps
System information

System structure

Substrate primer - Sikadur®-330 / Sikadur®-300.
Impregnating/laminating resin - Sikadur®-300.
Structural strengthening fabric - SikaWrap® type to suit requirements.
Technical Information

Compressive strength

4o C

23oC

32oC

3 days-~55 MPa-

7 days

~7.0 MPa

~80 MPa

~80 MPa

28 days

-

~75 MPa

-

Material cured and tested at the temperatures indicated and 50 % R.H.

Modulus of elasticity in compression

~2,620 MPa  (7 days)

+23oC, 50%R.H

Modulus of elasticity in flexure

~ 3,500 MPa (+23 °C, 50 % R.H)(ASTM D-790)
~ 4,130 MPa (+60 °C, 50 % R.H, post cured min. 48hrs)

Tensile strength

~ 41 MPa (+23°C, 50% R.H)

~ 70 MPa 

(+23°C, 50% R.H , post cured min.48hrs)

(ASTM D-790)

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 − +40 °C)

(EN 1770)

Service temperature

–40 °C to +45 °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

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 hours

~3 hours

+23 °C

~4 hours

–
+40 °C~90 minutes~60 minutes

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+B before mixing them (not below +5 °C).
Consumption

Consumption

See the "Method Statement for SikaWrap® manual wet application" Ref 850 41 03 and the "Method Statement for SikaWrap® saturator machine wet application" Ref 850 41 04.
Guide: 0.4–1.0 kg/m2.
Application steps

SUBSTRATE QUALITY

The substrate must be sound and of sufficient tensile strength to provide a minimum pull off strength of 1.5 N/mm2 or as per the requirements of the design specification ACI 440.2R,  AS5100.8:2017 or Vic Roads Spec Section 688: 2018 .
See also the "Method Statement for SikaWrap® manual wet application" Ref 850 41 03 and the "Method Statement for SikaWrap® saturator machine wet application" Ref 850 41 04.

SUBSTRATE PREPARATION

See the "Method Statement for SikaWrap® manual wet application" Ref 850 41 03 and the "Method Statement for SikaWrap® saturator machine wet application" Ref 850 41 04.

MIXING

Pre-batched units:
Mix components A+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 approx. 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.

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