SPETEC SEAL F400 T.D.S

DESCRIPTION

One component, closed cell, hydrophobic, water reactive, phthalate free, low viscosity polyurethane injection resin for stabilisation and water cut-off of large water leaks.

In contact with water the SPETEC^®SEAL F400 will expand and set as a permanent flexible water seal inside the crack or joint.

ADVANTAGES

One component
Different reaction times are possible by adjusting the percentage of SPETEC^® Gen Acc. To get an even faster reaction, there is also a SPETEC^® Gen Acc Fast accelerator available.
Cured polyurethane is flexible, shrink-free and exhibits good chemical resistance (contact our Technical Service for more information)
Cured polyurethane is harmless for the environment and resistant to biological attacks.

FIELD OF APPLICATION

Shut off water leaks in concrete, brickwork and sewers where movement and settlement may occur
Injecting very fine joints, cracks and microcracks < 0.5 mm
Water cut-off of water leaks in foundations such as diaphragm walls, piling sheets and secant piles
Sealing water-carrying cracks and joints in tunnel segments
Curtain grouting behind tunnel, concrete, brickwork and sewer walls
Injection of water cut-off membranes and liners in tunnels
Injection of preventively placed injection tubes

APPLICATION

Note : the following is a typical application description. In case of other jobsite parameters, please contact our technical department.

PRELIMINARY ANALYSES

For leaking joints, check how the joint runs into the construction.

Injection holes have to be drilled into the joint.

For leaking cracks, drill the injection holes in a zig-zag pattern around the crack to make sure that the injection hole intersects with the crack.

REQUIRED TOOLS

Drill and drill bits of appropriate diameter and length Packers of appropriate diameter and length Injection pump; manual, pneumatic or electric.

PREPARATION OF THE SUBSTRATE

Drill under an angle of 45° into the crack or joint. Ideally the injection hole should intersect the joint or crack about half way the thickness of the wall or slab.

Blow the dust out of the injection hole.

Fix a packer of the right diameter into the injection hole.

PREPARATION OF THE PRODUCT

Read the technical and safety data sheets prior to commencement of the injection works.

Vigorously shake the SPETEC^® Gen Acc or the SPETEC^® Gen Acc Fast before use. Pour the required amount (2-10%) into the SPETEC^® SEAL F400 resin.

Mix the accelerator homogeneously into the resin and protect against moisture and rain to prevent premature reaction. Only prepare that amount of product that can be processed in one day.

PREPARATION OF THE EQUIPMENT

Depending on the application, injection can be carried out using a hand pump, pneumatic pump or electric pump.

Always use a separate pump for injection of water and PUR resin.

Check that the pump is working properly.

Prior to injection, the pump must be flushed with SPETEC^® PUMP CLEANER and be completely free of water to prevent pump blockage.

INJECTION

Start the injection at the first packer; for vertical joints or cracks this is usually the lowest packer.

Do not over pressurise while injecting; the correct injection pressure is the pressure that allows to resin to flow into the crack or joint.

Avoid injecting at pressures of more than 100 bars. If unreacted resin comes out of the joint or crack, stop the injection and move on to the next packer.

After the last injection of resin into the packer, shoot a little bit of water into the packer in order to make sure that the last injected resin will react as well.

FINISHING

After injection, remove the packers from the concrete and fill the holes with a fast setting cement or any other appropriate filler material.

APPLICATION CONDITIONS

Avoid injecting by temperatures below -20°C. In extreme cold conditions it is recommended to warm the resin and catalyst.

CLEANING AND MAINTENANCE

After the injection, clean the pump with SPETEC^® PUMP CLEANER. If the pump will not be used for several days, put oil into the pump and leave it there until the next usage. Never rinse the pump with water.

COMPLIMENTARY PRODUCTS

SPETEC^® PUMP CLEANER

SPETEC^® PACKERS & ACCESSORIES CERMIPLUG

ADVICE / FOCAL POINTS

Water must always be present during the injection of SPETEC^® SEAL F400 as it is a water-reactive resin.

TECHNICAL DATA

APPEARANCE

SPETEC® SEAL F400, uncured (Appearance: white liquid)

Viscosity at 25°C

Brookfield SP4 – 200 rpm

+ 350 mPa.s

Density

EN ISO 2811-1

+ 1,06 kg/dm3

SPETEC® Gen Acc, Accelerator for SPETEC® SEAL F400 (Appearance: yellow – orange liquid)

Viscosity at 25°C

Brookfield SP3 / 200 rpm

± 75 mPa.s

Flash point

156°C.

Density

EN ISO 2811-1

± 1,05 kg/dm3

SPETEC® Gen Acc Fast, Accelerator voor SPETEC®SEAL F400 (Appearance: yellow – orange liquid)

Viscosity at 25°C

Brookfield SP3 / 200 rpm

± 70 mPa.s

Flash point

156°C.

Density

EN ISO 2811-1

± 1,05 kg/dm3

REACTION TIMES

SPETEC® Gen Acc	5°C			15°C			25°C
%	Start	End			End			End
2	110”	265”	8V	70”	215”	8V	45”	145”	8V
6	45”	115”	10V	31”	81”	10V	25”	58”	10V
10	35”	80”	11V	21”	60”	11V	15”	40”	11V

SPETEC® Gen Acc Fast	5°C			15°C			25°C
%	Start	End		Start	End		Start	End
2	70”	180”	9V	40”	120”	9V	30”	95”	9V
6	30”	75”	10V	20”	55”	10V	15”	45”	10V
10	17”	50”	11V	15”	40”	11V	10”	30”	11V

CONSUMPTION

Consumption has to be assessed on site and is influenced by the amount of water leaking, thickness of the concrete slab or wall, presence of voids in and around the concrete etc.

CHEMICAL RESISTANCES

Cured polyurethane exhibits good chemical resistance, is harmless for the environment and resistant to biological attack. (contact our Technical Service for more information)

REFERENCE DOCUMENTS

PACKAGING

SPETEC^® SEAL F400	5 kg	Metal cans	92 cans/pallet
	20 kg	Pails	24 pails/pallet
	200 kg	Steel drums	4 drums/pallet
SPETEC^® Gen Acc	0,5 kg	Plastic Bottles	12 bottles/box 40 boxes/pallet
	2 kg	Plastic Bottles	4 bottles/box 44 boxes/pallet
	20 kg	Pails	24 pails/pallet
SPETEC^® Gen Acc Fast	2 kg	Plastic Bottles	4 bottles/box 44 boxes/pallet

STORAGE AND SHELF LIFE

SPETEC® SEAL F400 is moisture sensitive and should be stored in a dry area between +5°C and +30°C. Shelf life of the resin: 24 months in original packaging. Shelf life of the accelerator: 24 months in original packaging Once opened, containers should be used as soon as possible.

SAFETY PRECAUTIONS

Avoid contact with eyes and skin, always use personal protective equipment in compliance with local regulations. Read the relevant Material Safety Data Sheet before use. Material Safety Data Sheets are available on www.spetec.com When in doubt contact SPETEC® Technical Service.