Supply across Uzbekistan and to Kyrgyzstan, Tajikistan and Turkmenistan +998 93 815 00 53 Telegram sale@coatix.uz
Khimtrast PU Injection Resin 2K — elastic injection of joints and cracks
KHIMTRAST

Khimtrast PU Injection Resin 2K — elastic injection of joints and cracks

Injection waterproofing

The two-component polyurethane resin is pumped through injectors into joints, cracks or deep into the structure, where it forms an impermeable elastic membrane resistant to aggressive media. The compound is intended for expansion and construction joints and for eliminating leaks in underground structures; on water-bearing cracks, the elastic PU foam is used first and the resin is injected 12 h later. Elongation at break is 60–70%, water absorption in 24 h max 0.01%, and watertightness at a pressure of 0.3 MPa is maintained for at least 30 days.

Specifications

ManufacturerKhimtrast — AO “Khimtrast”, Nizhnekamsk
Typeinjection waterproofing
Usejoints and abutments, leak repair, foundations and basements
Basetwo-component polyurethane injection resin: component A (polyol) — a mixture of polyesters and special additives (viscosity at 25 °C 185–250 mPa·s, density 1.03–1.08 g/cm³), component B — isocyanate-based prepolymer (450–600 mPa·s, 1.05–1.1 g/cm³)
Colourcomponent A — yellow to dark brown; component B — light yellow to yellow
Packagingcomponent A — 5 kg metal bucket; component B — 5 kg metal bucket
Application methodwaterproofing of expansion and construction joints, elimination of leaks in underground structures, creation of an impermeable elastic membrane in the structure; condition the components at ambient temperature, stir each separately for 2 min, mix A:B = 100:100 by weight with a mixer at max 500 rpm for 2–3 min; holes 1–2 mm larger than the injector diameter; into a joint or crack — at 40–50° crossing it, spacing ½ the substrate thickness, staggered; deep into the structure — at 90° to a depth of up to 2/3 of the thickness; water-bearing cracks — 50–60 mm from the edge at 40–50°, spacing ½ the thickness, max 200 mm; one-component resin pump (piston type such as EK-200: hose pressure up to 225 atm, injection pressure 35–40 atm, 0.5–1 l/min); re-injection after 0.5–1.5 h, control injection into the previous injector; vertical cracks from bottom to top; for water-bearing cracks first Khimtrast PU Elastic Injection Foam, then the resin after 12 h; remove the packers, fill the holes with a repair compound
Application temperature+5…+30 °C (air and structure surface)
Curingpot life after mixing at least 30 min; curing at +20 °C 5–7 h
Key propertiestensile strength at least 1.0 MPa; relative elongation at break 60–70%; Shore A hardness after 7 days at least 30; water absorption in 24 h max 0.01 wt. %; watertightness limit at a pressure of 0.3 MPa at least 30 days; service temperature from −40 to +80 °C; forms a watertight elastic membrane resistant to aggressive media and water
Shelf life6 months from the date of production; storage and transport at +10…+30 °C
StandardsTU 20.16.56-112-27903090-2023; voluntary certificate of conformity ROSS RU.32001.04IBF1.OSP28.36255, 13.07.2023–12.07.2026

Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.

Other materials by KHIMTRAST