Polyurethane Grouting Chemicals

CYH-500 is a hydrophobic grout based on polyurethane.

Upon contact with water, CYH-500 reacts to closed cell rubber-like foam while expanding its volume up to 27 times. The cured material is of a constant volume. Since water is not a component of the foam structure, the cured material is essentially not affected by water or dryness. The reacted material does not shrink or swell. Depending on the pressure of injection, CYH-500 reacts to a very dense material or foam.

Areas of application include:

• Defective concrete (cracked or honeycombed)
• Concrete joints, Limestone, Brick construction
• Pipe intrusions, Waste water tanks
• Tunnels, Dams, Subway(Metro), Sewers, Manholes, Utility boxes, etc.
• Soil stabilization

Advantages:

• Negative side application possible
• Deep penetration into very small cracks
• Foam increases in volume to fill cavities and voids
• Excellent bond to surfaces
• Good adhesive strength, tolerant of movement
• Inert after curing, constant volume, no shrinkage
• Does not create new cracks

Gelacryl Superflex is a 2-part, acrylic-based resin designed for injections into pores, cracks, capillary cracks, voids and gravel nests.

Product Description:
Gelacryl Superflex is an acrylic based hydrophilic gel consisting of 2 components: a resin and an initiator which are pumped with a double piston pump with a 1/1 mix ratio. Hardened Gelacryl Superflex forms a self-healing elastic gel. Thanks to its exceptionally low viscosity and low surface tension, Gelacryl Superflex has a better penetration into the crack than water.

Uses:

• Repairing water leaks in structures with constant water pressure
• Preventive waterproofing of structures with constant water pressure
• Water control during tunnel drilling
• Screen injections
• Waterproofing underground structures in concrete or masonry (cellars, underground car parks)
• Waterproofing cracks in concrete or rock formations
• Waterproofing tunnel elements

Benefits:

• Gelacryl is injected with a 1/1 ratio twin piston pump.
• The exceptionally low viscosity allows Gelacryl Superflex to penetrate cracks of 0.1 mm width.
• Large post-swelling in contact with water: ± 150%
• Not corrosive or toxic
• Very good adhesion to concrete
• Good general chemical resistance to most acids, bases and micro-organisms (*)
• Non-toxic polyacrylate resin without acrylamides

Next generation, phthalate free, closed cell, 1-component, high performance, low viscosity, hydrophobic, HydroActive, rigid polyurethane injection grout for cutting off gushing water leaks with a high flow rate and/or high hydrostatic pressure.

Field of application:

• Designed for cutting off gushing water leaks with a high flow rate and/or high pressure.
• Used to block water leaks in diaphragm walls.
• Filling large voidssuch asrock fissures, crushed faults, gravel layers, joints, cracks and honeycombs in concrete structures that are not subject to settlement or movement.
• Injection of LDPE or HDPE membranes in tunnel construction.
• Pre-injections for waterproofing and consolidation in front of the TBM, with drill-and-blast and NATM under wet condition.
• In combination with cement and micro-fine cement for Combi-Grouting.
• For tie-back and screw rod anchoring in wet and dry conditions.
• For curtain injection into gravel for containing chemicals under wet or dry conditions.
• For soil stabilisation and anchoring in gravel.
• For screen injection behind porous structures when high velocity water streams are present.

Advantages:

• ADR free transport.
• Next generation resin with improved waterproofing performance.
• Improved cell structure of the cured compound resulting in better mechanical properties and durability.
• Phthalate free resins, REACH compliant.
• Improved performance at temperatures below 5°C, no crystallisation of HA Cut Cat AF.
• Fast, Extra-Fast and Super Extra-Fast catalysts available for applications where the standard catalyst reaction speed is insufficient due to low temperatures or very high water flow. (See respective Technical Data Sheet)
• HA Cut AF forms a rigid gasket with high strength in the joint or crack.
• Non-flammable, solvent free.
• User friendly: 1-component material.
• Controllable reaction times: by using catalyst curing times can be reduced.
• Cured compound is resistant to most organic solvents, mild acids, alkalis and microorganisms.(*)
• KTW Potable Water approved.

1-component, phthalate-free, closed-cell, hydrophobic, water-reactive, flexible, high performance polyurethane injection resin for waterproofing construction joints and cracks in concrete structures

Product Description
Unreacted, HA Flex LV AF is a yellow, non-flammable liquid without phthalate plasticizers. HA Flex LV AF are next generation 1-component injection resins with improved waterproofing properties. In contact with water, the resin will expand and quickly (depending on the temperature and amount of HA Flex Cat AF used) cure to a tough, flexible, closed-cell polyurethane foam that is generally inert to corrosive environments.

Uses:

• Waterproofing of wet and water-bearing cracks and joints in concrete according to EN 1504-5, Principle D
• Developed for injecting and sealing water leaks in concrete structures that are subject to settlement and movement
• For injecting a protective layer around the TBM and for repairing the waterproofing tape
• For sealing water leaks through the joints of tunnel segments
• For screen injections behind tunnel segments
• For the injection of LDPE or HDPE membranes in tunnels

Benefits:

• Meets the requirements of EN 1504-5, Principle D.
• ADR free transport
• Next generation resin with increased waterproofing performance
• Improved cell structure of the cured material gives higher mechanical properties and longer life.
• Phthalate-free resin, REACH compliant
• Improved performance at temperatures below 5 ° C, no crystallization of HA Flex Cat AF
• HA Flex LV AF forms a hard, high strength seal in the crack or joint.
• Not flammable, solvent free
• User-friendly: 1-component material
• Adjustable reaction rates: the reaction times can be reduced by using a catalyst.
• The cured material is resistant to most organic solvents, mild acids, bases and micro-organisms (*).

Phthalate-free, flexible, hydrophilic, low-viscous polyurethane resin for sealing moving, non-structural cracks

Uses:

• For sealing damp, moving, non-structural cracks below groundwater level
• For sealing water leaks through the joints of concrete tunnel elements
• For screen injections behind tunnel segments
• For sealing moving, leaking cracks
• For filling gravel nests below groundwater level
• For waterproofing man-accessible and non-man-accessible sewers
• For expansion joints or round joints in combination with oil-free hemp cord or open-cell foam

Product Description
HA Safefoam NF is a phthalate-free, 1-component low-viscosity, hydrophilic polyurethane resin. After curing, HA Safefoam NF forms an inert, flexible foam with closed cell structure and very good tensile strength and adhesion. HA Safefoam NF can be used as a 2-component system with a ratio with water of 1/1 for the injection of dry cracks.

Benefits:

• ADR free transport
• Phthalate-free resin, REACH compliant
• Solvent-free
• TDI free
• Not flammable
• Very good adhesion and tensile strength
• Withstands thermal movements, wet / dry cycles, freeze / thaw cycles and joint movements without degradation of the material.
• Good general chemical resistance. (*)

Low viscous, Single Component, hydrophobic, MDI-based, polyurethane injection resin without catalyst. It only reacts with water and forms a Flexible Polyurethane Foam. This product can be injected pure directly into a leaking crack, fracture or joint. After injection has taken place, the will foam to expand and fill the void, forming a tight, impermeable elastomeric seal, stopping the water flow.

RPU 500 reacts with water forming a Flexible Polyurethane Foam

• Due to its flexibility, the foam absorbs somewhat the movements of the crack.
• Penetrates deep in fine cracks.
• Reacts with water with the formation of carbondioxyde gas. This gas produces a swelling pressure and the resin expands to a foam sealing all water penetration
• Free expansion: 2700 %
• Chemically resistant against water, weak acids and alkali, most organic solvents
• Excellent adhesion to mineral construction materials (such as concrete, cement, brick), metal and certain plastics,

TAMPUR 116T is a two-component, silicate modified, solventfree, semi-flexible polyurethane injection resin. It is specifically designed for rapid stabilisation of coal, concrete and soft ground geologies, providing structural integrity, strength and flexibility. Its superior performance allows TamPur 116T to be used as a Chemical “Rock Bolt Resin” and on-site tests have demonstrated pull-out strengths in excess of 31 tonnes.

KEY BENEFITS:

• Non-foaming even in contact with water and will not absorb water
• Penetrates cracks wider than 0.25 mm
• Shows good adhesion to wet substrates
• Fast reaction even underwater
• Fire resistant
• No agitation of components required beforehand
• Low odour
• Environmentally friendly
• User friendly

TYPICAL APPLICATIONS:

• Stabilising of coal and soft rock strata
• Consolidation of fractured rock, sands, gravels and coal faces
• Rock bolting applications
• Repair of underwater construction
• Repair of concrete cracks

Tampur 125 is based on a polyol component (part A) and a polymeric MDI (part B). When mixed, a hydrophobic polyurethane foam is formed which is tough, rigid and resistant to a wide range of chemicals. TamPur 125 reacts rapidly enabling the product to cut off large water leaks.

TamPur 130 / TamKat 130 is a single-shot hydrophobic polyurethane based on MDI in combination with polyether polyols and an amine based catalyst. The system only reacts when it comes into contact with water, producing a semi-flexible polyurethane foam.

KEY BENEFITS:

• Potable water approved & PUB Singapore approved
• Can withstand high hydrostatic pressures
• Variable reaction times
• Semi-flexible Reacts with saline and mineral water
• Medium viscosity Solvent free,
• Environmentally safe

TYPICAL APPLICATIONS:

• Sealing against water ingress
• Sealing against leaking cracks and joints
• Sealing against water in masonry and brickwork
• Back grouting

Tampur 136 is a single component hydrophobic polyurethane based on MDI in combination with polyether polyols. The system incorporates an active accelerator and only reacts when it comes into contact with water, producing a non-toxic, semi-flexible polyurethane foam.

KEY BENEFITS:

• Environmentally safe,
• non-toxic
• In built accelerator
• Semi-flexible Reacts with saline and mineral water
• Low viscosity

TYPICAL APPLICATIONS:

• Sealing against water ingress
• Sealing against leaking cracks and joints
• Sealing against water in masonry and brickwork
• Back grouting

X-Inject WS100 is a two part Base (Part A) and Catalyst (Part B) solvent-free, low viscosity, foaming polyurethane resin system. When in contact with water it reacts to form a rapidly expanding stable foam that stops water leaks. X-Inject WS100 is formulated to temporarily seal water leaks in concrete structures to allow injection of a secondary permanent seal using X-Inject PU211 or PU221.

Advantages:

• Variable mixing ratios to control degree of foaming
• Formulated for hot and cold climates
• Can be supplied as a pre-catalysed single component product
• Good adhesion to substrate
• Withstands high hydrostatic pressures
• Stable foam when cured
• Application with electric or pneumatic injection pumps
• Cured resin is non toxic
• Suitable for use in contact with potable and brackish