Sika® Injection-307

Polyacrylic elastic injection resin for permanent watertight sealing

Sika® Injection-307 is a polyacrylic, 3-part acrylate based injection resin with a very low viscosity and adjustable reaction time

Provides a passivating environment for embedded steel reinforcement
Adjustable curing time between 10 and 50 minutes
Permanently elastic
Capable of reversibly absorbing (swelling) and releasing (shrinking) moisture
Very low viscosity comparable to water
After curing the Product is insoluble in water and hydrocarbons and resistant to alkalis

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Product Data Sheet Show all documents

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

CE marking and declaration of performance based on EN 1504-5:2004 Products and systems for the protection and repair of concrete structures — Concrete injection
Water Tightness Building Regulations List A, SikaFuko® VT-1, WISSBAU, Test repor

Product Information

Chemical Base

3-part polyacrylic resin

Shelf Life

12 months from date of production

Storage Conditions

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +30 °C. Protect Part B from frost. Always refer to packaging.

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

Density

Part A (Resin)	1.073 kg/l
Part A1 (Accelerator)	1.040 kg/l
Part B (Hardener)	2.100 kg/l

Viscosity

3.8 mPa∙s (complete mixture +20 °C)

(EN ISO 3219)

Application

Application Information

Mixing Ratio

Accelerator metering chart by ambient temperature per 9.6 kg of Part A resin.

Reaction time	+5 °C (+41 °F)	+15 °C (+59 °F)	+22 °C (+72 °F)	+30 °C (+86 °F)	+40 °C (+104 °F)
10 min	1170 ml	650 ml	440 ml	360 ml	250 ml
20 min	750 ml	440 ml	340 ml	290 ml	200 ml
30 min	590 ml	390 ml	290 ml	250 ml	170 ml
40 min	550 ml	350 ml	260 ml	230 ml	160 ml
50 min	520 ml	330 ml	230 ml	210 ml	140 ml

The Accelerator is diluted in water so that the total Accelerator solution is 1000 ml.

Example of a mix calculation for ~ 20 litres of mixed resin.

Ambient temperature	+22 °C (+72 °F)
Required reaction time	30 min
Part A	9.6 kg
Accelerator solution (Part A1 + water)	290 ml Accelerator 710 ml water
Part B solution	0.8 kg dissolved in 10 L of water

Product Temperature

Maximum	+40 °C
Minimum	+5 °C

Ambient Air Temperature

Maximum	+40 °C
Minimum	+5 °C

Substrate Temperature

Maximum	+40 °C
Minimum	+5 °C

Pot Life

When using one component pumps pot life or workability is 0.8 × Reaction time. Refer to Table 1 Accelerator metering chart in the Mixing Ratio section.

Cure Time

60 minutes

Gel time

10-50 minutes

Consumption

Coverage

~ 40 litres per kit

Application steps

MIXING

PREPARE PART B SOLUTION

Pour 10 litres of water in a clean container.
Add1 bag (800 g) of Part B to the water and mix thoroughly with a low speed mixer until Part B is completely dissolved.

PREPARE ACCELERATOR SOLUTION

Determine the required quantity of accelerator (Part A1). Refer to the Accelerator metering chart in the Mixing Ratio section.
Dilute the selected quantity of accelerator with water to a total quantity of 1 litre accelerator solution.

MIX ACCELERATOR SOLUTION INTO PART A RESIN

Pour the 1 litre of accelerator solution into 1 × 9.6 kg container of Part A and shake to mix thoroughly.

MIX RESIN SOLUTION AND HARDENER SOLUTION

One component pump:

At a ratio of 1:1 by volume, pour the resin solution and hardener solution into a clean mixing container.
Mix thoroughly with a mixer and pour into the hopper of the pump.

Two component pump:

Pour the resin solution into the hopper of the pump`s ‘A’ side.
Pour the hardener solution into the hopper of the pump`s ‘B’ side.
Pump the Product at a ratio of 1:1 by volume.

APPLICATION

IMPORTANT

Environmental considerations

Failure to properly assess the jobsite and the scope of the application can lead to a loss of Product performance.

Survey the jobsite to assess foundations and ground conditions before carrying out curtain injection in close proximity to or within existing structures.
Check to make sure there are no open pipes or drainage systems close to injection areas.
Prior to use check the Product's gel time within the local site ambient conditions.
Contact Sika technical services for specific information on resistance to hydrocarbons or chemicals.

Reference must be made to further documentation where applicable, such as relevant method statements, application manuals and installation or working instructions.

Sika® Injection-307 can be used with standard one or two component injection pumps.