Product Data Sheet Show all documents

Sikadur®-30

2-part epoxy structural adhesive for bonding reinforcement

Sikadur®-30 is a 2-part epoxy based thixotropic structural adhesive which bonds to most construction materials. It has high mechanical strength and is used for bonding structural reinforcement and structural strengthening using steel or Sika® CarboDur® plates.

Sikadur®-30 has the following advantages:
  • Easy to mix and apply.
  • No primer needed.
  • High creep resistance under permanent load.
  • Very good adhesion to concrete, masonry, stonework, steel, cast iron, aluminium, timber and Sika® CarboDur® plates.
  • Hardening is not affected by high humidity.
  • High strength adhesive.
  • Thixotropic: non-sag in vertical and overhead applications.
  • Hardens with relatively low shrinkage.
  • Suitable for structural concrete repair, class R4
  • Different coloured components (for mixing control).
  • High initial and ultimate mechanical resistance.
  • High abrasion and shock resistance.
  • Impermeable to liquids and water vapour.
Product Data Sheet Show all documents

Usage

Suitable for structural concrete repair (Principle 3, Method 3.1 of EN 1504-9). Repair of spalling and damaged concrete in buildings, bridges, infrastructure and superstructure works. Suitable for structural strengthening (Principle 4, Method 4.3 of EN 1504-9). Increasing the bearing capacity of the concrete structure by bonding plate reinforcement. Adhesive for bonding structural reinforcement, particularly in structural strengthening works. Especially for the following uses:
  • Sika® CarboDur® Plates to concrete, brickwork and timber (for details see the Sika® CarboDur® Product Data Sheet and the relevant Method Statement).
  • Steel plates to concrete (see the relevant technical information below).
 

Advantages

Sikadur®-30 has the following advantages:
  • Easy to mix and apply.
  • No primer needed.
  • High creep resistance under permanent load.
  • Very good adhesion to concrete, masonry, stonework, steel, cast iron, aluminium, timber and Sika® CarboDur® plates.
  • Hardening is not affected by high humidity.
  • High strength adhesive.
  • Thixotropic: non-sag in vertical and overhead applications.
  • Hardens with relatively low shrinkage.
  • Suitable for structural concrete repair, class R4
  • Different coloured components (for mixing control).
  • High initial and ultimate mechanical resistance.
  • High abrasion and shock resistance.
  • Impermeable to liquids and water vapour.

Packaging

6 kg sets (Part A: 4.5 kg, Part B: 1.5 kg)

Colour

Part A: white

Part B: black

Part A+B mixed: light grey

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

  • ETA-21/0276 (European Technical Assessment)  based on EAD 160086-00-0301 – "Kits For The Strengthening of Concrete Elements by Externally Bonded CFRP Strips"
  • CE Marking and Declaration of Performance to EN 1504-3 - Concrete repair product for structural repair
  • CE Marking and Declaration of Performance to EN 1504-4 - Structural bonding
  • France: Technical Approval, CSTB, Avis Technique 3.3/20-1021_V1
  • Italy: Certificate of Technical Valuation, CSLLPP, No. 209/2019
Product Information

Product Declaration

Complies with the general requirements of EN 1504-3: Class R4

Complies with the general requirements of EN 1504-4: Structural bonding

Chemical base

Epoxy resin and selected fillers

 

Shelf life

24 months from date of production

Storage conditions

Store in original, unopened and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

Density

(1.98 ± 0.10) kg/l (parts A+B mixed) (at +23 °C)

Volatile organic compound (VOC) content

Compliant with VOC emission classification GEV-Emicode EC1PLUS
Technical Information

Compressive Strength

Curing Time

Curing Temperature

+10 °C

+35 °C

12 hours

-

≥ 80 N/mm2

1 day

≥ 50 N/mm2

≥ 85 N/mm2

3 days≥ 65 N/mm2≥ 85 N/mm2
7 days≥ 70 N/mm2≥ 85 N/mm2

Tensile Strength

Curing Time

Curing Temperature

+15 °C

+35 °C

1 day

≥ 18 N/mm2

≥ 23 N/mm2

3 days

≥ 21 N/mm2

≥ 25 N/mm2

7 days≥ 24 N/mm2≥ 26 N/mm2

Shear Strength

Curing Time

Curing Temperature

+15 °C

+35 °C

1 day

≥ 3 N/mm2

≥ 15 N/mm2

3 days

≥ 13 N/mm2

≥ 16 N/mm2

7 days≥ 14 N/mm2≥ 16 N/mm2

Or concrete failure (at about 15 N/mm2)

Tensile Adhesion Strength

Curing time

Substrate

Curing temperature

Adhesion strength

7 days

Concrete dry

+23 °C

> 4 N/mm2*

7 days

Steel

+23 °C

> 17 N/mm2

*or concrete failure 

Shrinkage

About 0.04 %

(FIP: Fédération Internationale de la Précontrainte)

Control pull-off strength (restrained movement) ~3.8 MPa

(EN 12617-4)

Coefficient of Thermal Expansion

2.5 x 10-5 per °C (Temperature range: −20 °C to +40 °C)

(EN 1770)

Service temperature

−40 °C to +45 °C (when cured at +23 °C)

Glass Transition Temperature

Curing time

Curing temperature

TG

30 days

+30 °C

+52 °C

Heat Deflection Temperature

Curing time

Curing temperature

HDT

3 hours

+80 °C

+53 °C

6 hours

+60 °C

+53 °C

7 days+35 °C+53 °C
7 days+10 °C+36 °C

Thermal Compatibility

Durability

Pass

Reaction to Fire

Euroclass C–s1, d0

Euroclass Bfl–s1

(EN 13501-1)

Application

Application Information

Mixing ratio

Part A : Part B = 3 : 1 by weight or volume

Layer Thickness

30 mm max.

Sag Flow

On vertical surfaces it is non-sag up to 3–5 mm thickness at 35 °C

(FIP: Fédération Internationale de la Précontrainte)

Squeezability

4000 mm2 at +15 °C at 15 kg

(FIP: Fédération Internationale de la Précontrainte)

Product Temperature

Sikadur®-30 must be applied at temperatures between +8 °C and +35 °C.

Ambient Air Temperature

+8 °C min. / +35 °C max.

Dew Point

Beware of condensation. Substrate temperature during application must be at least +3 °C above dew point.

Substrate Temperature

+8 °C min. / +35 °C max.

Substrate Moisture Content

Max. 4 % pbw. When applied to mat damp concrete (≤ 4%), brush the adhesive well into the substrate.

Pot Life

Temperature

Potlife

Open time

+8 °C

~120 minutes

~150 minutes

+20 °C

~90 minutes

~110 minuets

+35 °C~20 minutes~50 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).
Application steps

SUBSTRATE QUALITY

See the Product Data Sheet of Sika® CarboDur® Plates and Sika® CarboDur® BC rods.

 

SUBSTRATE PREPARATION

See the relevant Method Statement.

MIXING

IMPORTANT

Avoid over mixing to minimise air entrainment.

Note: Use a spiral paddle in an electric single at a maximum speed of 300 rpm.

  1. Mix Part A (resin) for ~30 seconds.
  2. Add Part B (hardener) to Part A.
  3. Mix Part A+B continuously for ~3 minutes until a uniformly smooth, coloured mix is achieved.
  4. To ensure thorough mixing, pour materials into another clean container and mix again to achieve a smooth and uniform mix.

CLEANING OF TOOLS

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

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