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Sikadur®-30 LP IN

Thixotropic epoxy structural adhesive for bonding reinforcement

Sikadur®-30 LP IN is a 2-part epoxy based thixotropic structural adhesive which bonds to most construction materials and especially designed for use at higher temperatures between +25 °C and +55 °C. It has high mechanical strength and is used for bonding structural reinforcement and structural strengthening using steel or Sika® CarboDur® plates.

  • Long pot life
  • High temperature resistance at elevated curing temperatures
  • Easy to mix and apply

Usage

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, timber and steel (for details see the Sika® CarboDur® Product Data Sheet, the “Method Statement for Sika® CarboDur® Externally Bonded Reinforcement” Ref: 850 41 05 and the “Method Statement for Sika® CarboDur® Near Surface Mounted Reinforcement” Ref: 850 41 07).
  • Steel plates to concrete (for details see the relevant Sika Technical information).

Packaging

Part A+B pre-batched

6 kg

Part A4.5 kg container

Part B

1.5 kg container

Advantages

  • Long pot life
  • High temperature resistance at elevated curing temperatures
  • 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 without shrinkage
  • Different coloured components (for mixing control)
  • High initial and ultimate mechanical resistance
  • High abrasion and shock resistance
  • Impermeable to liquids and water vapour

Colour

Part A+B mixedLight grey

Part A

White

Part B

Black

Product Details

Chemical base

Epoxy resin

 

Shelf life

12 months from date of production

 

Storage conditions

The Product must be stored properly in original unopened, sealed and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

 

Density

~1.8 kg/L (Part A+B mixed, +27 °C)

System structure

Reference must be made to the Sika Method Statements:

 

  • Method Statement: Sika® CarboDur® Externally Bonded Reinforcement – Ref 850 41 05
  • Method Statement: Sika® CarboDur® Near Surface Mounted Reinforcement – Ref 850 41 07

Compressive strength

Curing time

Compressive strength +25 °C

Compressive strength +55 °C

12 hours

–

~60 N/mm2

1 day

~75 N/mm2

~80 N/mm2

3 days~85 N/mm2~90 N/mm2
7 days~85 N/mm2~90 N/mm2

 

Modulus of elasticity in compression

~10 000 N/mm2 (at +25 °C)

(ASTM D695)

 

Flexural strength

Curing timeFlexural strength +25 °CFlexural strength +55 °C

1 day

~12 N/mm2

~20 N/mm2

3 days

~20 N/mm2~25 N/mm2
7 days

~25 N/mm2

~27 N/mm2

 

Tensile strength

Curing time

Tensile strength +25 °C

Tensile strength +55 °C
1 day–~23 N/mm2

3 days

~12 N/mm2

~25 N/mm2

7 days

~15 N/mm2

~25 N/mm2

 

Shear strength

Curing time

Shear strength 

+25 °C

Shear strength +40 °C to +55 °C

Shear strength 

+80 °C

> 1 hr

–

–

~17 N/mm2

7 days

~10 N/mm2

~10 N/mm2

–

 

Tensile adhesion strength

Curing time and substrate

Tensile adhesion strength +25 °C

Tensile adhesion strength +55 °C

1 day, concrete

> 2.5 N/mm2 (concrete failure)

> 2.5 N/mm2 (concrete failure)

1 day, steel

≥ 15 N/mm2

≥ 18 N/mm2

3 days, steel≥ 18 N/mm2≥ 20 N/mm2

 

Shrinkage

0.04 %

(FIP 5.7)

 

Coefficient of thermal expansion

2.5 × 10-5 per °C (Temperature range -20 °C to +40 °C)

 

Service temperature

+0 °C to +45 °C (when cured at > +23 °C)

 

Heat deflection temperature

+55 °C (7 days at +30 °C)

(ASTM D648)

Application

Mixing ratio

Part A : Part B = 3 : 1 (by weight)

 

Layer thickness

30 mm max.

 

Sag flow

On vertical surfaces it is non-sag up to 3−5 mm thickness at +55 °C

(FIP 5.3)

 

Squeezability

~5 400 mm2 at +25 °C with 15 kg weight

(FIP 5.4)

 

Product temperature

Sikadur®-30 LP IN must be applied at temperatures between +20 °C and +40 °C.

 

Ambient air temperature

+25 °C min. / +55 °C max.

 

Dew point

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

 

Substrate temperature

+25 °C min. / +55 °C max.

 

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

+25 °C

~60 minutes (100 g mass)

+55 °C

~30 minutes (100 g mass)

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

 

Open time

Temperature

Open time

+25 °C

~80 minutes (100 g mass)

+55 °C

~50 minutes (100 g mass)

Consumption

Consumption will depend on the roughness of the substrate and the type of reinforcement to be bonded. See respective Sika® CarboDur® Product Data Sheet and also refer to:

 

  • Method Statement: Sika® CarboDur® Externally Bonded Reinforcement – Ref 850 41 05
  • Method Statement: Sika® CarboDur® Near Surface Mounted Reinforcement – Ref 850 41 07

SUBSTRATE QUALITY

Substrates must be structurally sound and of sufficient tensile strength to provide a minimum pull off strength of 1.5 N/mm2 or as required in the design specification.

Reference must be made to the Sika Method Statements:

  • Method Statement: Sika® CarboDur® Externally Bonded Reinforcement – Ref 850 41 05
  • Method Statement: Sika® CarboDur® Near Surface Mounted Reinforcement – Ref 850 41 07

 

SUBSTRATE PREPARATION

Reference must be made to the Sika Method Statements:

  • Method Statement: Sika® CarboDur® Externally Bonded Reinforcement – Ref 850 41 05
  • Method Statement: Sika® CarboDur® Near Surface Mounted Reinforcement – Ref 850 41 07

 

MIXING

IMPORTANT

Mix full units only.

IMPORTANT

Over mixing must be avoided to minimise air entrainment.

Note: Always use a mixing spindle attached to a slow speed electric drill (< 300 rpm).

  

  1. Add Part B (hardener) to Part A (resin).
  2. Mix Parts A+B continuously for ~3 minutes until a uniformly coloured mix is achieved.
  3. To ensure thorough mixing, pour materials into a clean container and mix again for approximately 1 minute.

 

APPLICATION

Reference must be made to the Sika Method Statements:

  • Method Statement: Sika® CarboDur® Externally Bonded Reinforcement – Ref 850 41 05
  • Method Statement: Sika® CarboDur® Near Surface Mounted Reinforcement – Ref 850 41 07
 

CLEANING OF TOOLS

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

Document

  • Product Data Sheet (PDS)