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Sika® Injection-307

Elastic polyacrylic injection resin used for permanent watertight sealing

Sika® Injection-307 is a very low viscous, elastic polyacrylic injection resin with a versatile and adjustable reaction time. Suitable for hot and tropical climatic conditions.

  • Providing passivizing environment for embedded steel reinforcement
  • Adjustable curing time between 5 and 60 minutes
  • Permanently elastic, can absorb limited movements
  • Capable of reversibly absorbing (swelling) and releasing (shrinking) moisture
  • Solvent free acrylic resin
  • Very low viscosity comparable to water
  • Cured Sika® Injection-307 is insoluble in water and hydrocarbons and resistant to alkalis.
Sika® Injection-307
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Usage

  • Sika® Injection-307 is used for crack and joint injection
  • Sika® Injection-307 is used for the injection of SikaFuko® injection hoses to seal construction joints
  • Sika® Injection-307 is used to seal water-bearing cracks and voids
  • Sika® Injection-307 is used for making new sealing walls (curtains) in damp or water saturated ground conditions, situated in close proximity to the building component or within the building structure
  • Sika® Injection-307 is used as a post-construction, external injection sealing system for construction and limited movement expansion or drainage pipe joints, that are, or will be, covered with damp or water saturated soil
  • Sika® Injection-307 can also be used for the repair by injection of damaged waterproofing membranes (single and double layer system)
 

Advantages

  • Providing passivizing environment for embedded steel reinforcement
  • Adjustable curing time between 5 and 60 minutes
  • Permanently elastic, can absorb limited movements
  • Capable of reversibly absorbing (swelling) and releasing (shrinking) moisture
  • Solvent free acrylic resin
  • Very low viscosity comparable to water
  • Cured Sika® Injection-307 is insoluble in water and hydrocarbons and resistant to alkalis.

Packaging

Sika® Injection-307 SET contains:

Component A (Resin)

2 × 9.6 kg

Accelerator Component A1

1 × 1.05 kg

Component B

4 × 0.4 kg

Components available separately:

Component A (Resin)

1 × 19.2 kg

Accelerator Component A1

1 × 5.25 kg

Component B

36 × 0.4 kg

Colour

Component A (Resin)

Blue – transparent
Accelerator Component A1Yellow – transparent
Component BWhite

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

  • Concrete injection for swelling fitted filling of cracks, (S) according to EN 1504-5:2004, Declaration of Performance 27801187, certified by notified factory production control certification body 0921, and provided with the CE marking
  • Watertightness test report 1201/011/16a of 7 bar according to EN14068 - tested by MPA Braunschweig
  • Corrosion test report M2208 in Steel - according to EN480-14 - tested by RWTH Aachen
  • Function test report use of Sika® Injection-307 in combination with SikaFuko VT-1 PB-2016-204 - tested by Wissbau Essen
  • Compatibility tests on PVC/TPO Membranes 1200/554/17 - according to EN12637-3 - tested by MPA Braunschweig
 
Product Information

Composition

3-part polyacrylic resin

Shelf life

12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging.

Storage conditions

Dry storage at temperatures from +10 °C up to +30 °C. Protect from direct sunlight and humidity.

Density

Component A (Resin)

~1.073 kg/l

Accelerator Component A1

~1.052 kg/l

Component B

~2.100 kg/l

Viscosity

~3.8 mPa∙s (mixture at 20 °C)

(ISO 3219)

Application

Application Information

Mixing Ratio

mL AcceleratorAmbient Temperature
Reaction time5 °C
(41 °F)		10 °C
(50 °F)		20 °C
(68 °F)

30 °C
(86 °F)

40 °C
(104 °F)
5 min-1000*750*725*700*
10 min1000*875*500490480
20 min620*570*375340250
30 min545*500310250215
40 min510*450270225200
50 min475440260210170

Quantity of Accelerator per 9.6 kg component A, to yield 20 litres mixed resin. The total Accelerator solution must always be 1000 ml – see example below.

*reaction at cold temperatures – more accelerator required than included in the set.

Note for processing in one component pumps

Workability time (pot life) = Reaction time (see metering chart) – 10 minutes

Example
Ambient temperature: 20 °C (68 °F)
Required reaction time: 30 min.

Accelerator = 310 mL
Water = 690 mL
Total volume = 1000 mL
 
Note:
The given data are laboratory parameters and may deviate depending on the object and conditions on site.

Ambient Air Temperature

+5 °C min. / +40 °C max.

Substrate Temperature

+5 °C min. / +40 °C max.

Gel time

5 to 50 minutes
Consumption

Yield

~40 L per Sika® Injection-307 SET
Application steps

MIXING

1. Prepare Hardener Solution

Pour 10 litres of water in a clean container. Dissolve the content of 2 bags (total 800 g) of Component B in the water. Stir the hardener solution thoroughly until Component B is completely dissolved.

2. Prepare Accelerator Solution

Determine the required quantity of accelerator from the chart provided under mixing ratio, based on ambient processing temperature and required reaction time. Dilute the selected quantity of accelerator with water, to a total quantity of 1 litre accelerator solution.

  

3. Mix Accelerator Solution with Resin Component A

Pour the 1 litre of accelerator solution into one 9.6 kg canister of Component A and shake/mix thoroughly.

   

4. Mix Resin with Hardener

Depending on the type of injection pump used activate the injection resin using one of the methods below:

  • One component pump: Pour partial amount of the pre-mixed components in a ratio of 1:1 by volume into a clean mixing container. Mix thoroughly using an electric mixer and fill into the storage container of the pump.
  • Two component pump: Fill partial amount of the pre-mixed components into the storage container of the pump. Set the pump to work at a ratio of 1:1 by volume.

CLEANING OF EQUIPMENT

Clean all tools and application equipment according to the Product Data Sheet for the Sika® Injection Cleaning System.

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