TRADECC PC Leakinject 2K Flex 6811 LV - Flexible Sealing Polyurethane Injection Resin


  • Deep sealing of wet or dry joints and fine cracks.
  • Stage 2 sealing to complete the water sealing operation after Stage 1 has been carried out by products such as TRADECC PC Leakinject UNI 6816 E.
  • Post-construction sealing of construction joints within reinforced concrete structures via the Newton 302 Injection Hose system.


A two-part, low viscosity injection resin with excellent adhesion, that can be used either to seal fine cracks and joints in reinforced concrete structures or injected into an injection hose system to seal construction joints and provide a maintainable Type B waterproofing system.

The cured resin has excellent adhesion to concrete and metal, will not dry out or shrink, will not swell when in contact with water, and is non-corrosive to metal. Its low viscosity also means the product can be used in conjunction with the high-foaming TRADECC PC Leakinject UNI 6816 E, moving around the cured foam that has been used as a Stage 1 product to stem the flow of water, and fully sealing the fine cracks, joints and voids in order to complete the sealing system.

Features and benefits:

  • Penetrates deep into fine cracks.
  • Slow reaction times and long working life.
  • Exhibits high levels of chemical resistance.
  • Very good adhesion to concrete and steel.
  • Suitable for use within injection hose systems such as Newton 302 Injection Hose.
  • Low viscosity and so able to seal very fine cracks.
  • When in contact with water the resin will foam slightly to form a closed-cell polyurethane foam.
  • In dry substrate, TRADECC PC Leakinject 2K Flex 6811 LV penetrates deeply to form a flexible, polyurethane seal.
  • Stable with no further shrinkage or expansion.
  • Flexible with low strength.

Newton ReSeal System:

The Newton ReSeal System consists of a range of Newton’s advanced concrete repair mortars and injection resins to seal structural and non-structural cracks and defects, whether they are dry or leaking large volumes of water.

The products in the Newton ReSeal System can be used to repair a number of defects, including spalled and broken concrete to walls and pillars, road repairs, and cracks and honeycombing to concrete basement wall, soffits and floors.

Suitable substrates:

  • Concrete;
  • Masonry;
  • Steel.

General information


Part A: Colourless liquid, Part B: Dark brown liquid.


Flexible, closed cell foam or resin


Flexible sealing injection resin


Polyurethane liquid


25.2 kg in two parts - 12kg Part A (Resin) and 13.2kg Part B (Resin)


When specified, installed and protected in accordance with the data sheet, fully and permanently isolated from UV light and physical damage or wearing, and only to those substrates confirmed within, TRADECC PC Leakinject 2K Flex 6811 LV has a service life that can be equal to the design life of the structure

Uniclass 2015

Pr_30_31_76_65 Polyurethane (PUR) construction joint sealantsPrimary


C42/340 Crack/ void sealing grouts

Specification data - Polyurethane (PUR) construction joint sealants Enhanced data


Two-part, low viscosity injection resin.

Product Reference

322-SP Injection Resin


Yes - with water.


Yes - no water.

Viscosity at 20°C

103 mPa/s.

118 mPas.

Viscosity Category


Water source

Within substrate.

Controlled reaction


Final performance






Working time

60 minutes.

Reaction time

6 hours to 5 days.

Rate of expansion




Suitable substrates

Concrete, masonry and steel.


Part A = 1.005, Part B = 1.105.


72 (Shore A).

Watertightness under pressure at 2 x 105 Pa

Waterproof EN 14068.

Compatibility with concrete

Pass (Compatible) EN 12637-1.

Modulus of elasticity (5 days at 25°C)

6.6 MPa EN ISO 527.

Tensile strength (5 days at 25°C)

> 3 N/mm² EN ISO 527.

Elongation at break (5 days at 25°C)

128% EN ISO 527.

Injectability into a dry sand column (0.1 mm - 0.3 mm)

Easy to inject EN 1771.

Injectability into a wet sand column (0.1 mm - 0.3 mm)

Easy to inject EN 1771.

Adhesion to dry concrete at 3°C

1.30 N/mm² EN 12618-1.

Adhesion to wet concrete at 3°C

0.63 N/mm² EN 12618-1.

Adhesion to a sandblasted metal plate at 3°C"

3.59 N/mm² EN 12618-1.

Elongation at 3°C

117% EN 12618-1.

Glass transition temperature

-35.2°C EN 12614.

Similar products from Newton Waterproofing Systems

TRADECC PC Leakinject Hydrogel 6880 - Flexible Foaming Polyurethane Injection Resin

TRADECC PC Leakinject Hydrogel 6880 - Flexible Foaming Polyurethane Injection Resin

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