Sika - polyurethane injection resin Sika Injection-203

Sika Injection-203 is a polyurethane, flexible, solvent-free, low-viscosity injection resin for permanent sealing. Cures in both dry and wet conditions; creates a flexible watertight filling and sealing.

Features

• permanently elastic, can carry slight movements
• thanks to its very low viscosity, it can penetrate narrow cracks> 0.2 mm wide
• no shrinkage occurs in dry conditions (reversal of the swelling process)
• solvent-free, environmentally friendly product, can be used in underground protection zones
• Cured Sika Injection-203 is chemically inert
• at low temperatures (<+10 C) can be accelerated by Sika Injection-AC20
• can be injected as one-component products (if we do not use an accelerating additive)

Application

Sika Injection-203 is intended for the permanent, flexible sealing of dry, damp cracks in concrete, brick and natural stone. It can carry slight movements. Sika Injection-203 can be used as a caulking injection in the Sika Injectoflex System (this material cannot be re-injected). Seals cracks from which water leaks under pressure (pre-injection with Sika Injection-101-RC must be carried out).

Technical data

• color: component A yellowish; component B brownish
• chemical base, solvent-free, two-component, water-reactive polyurethane resin
• density at +20 C: component A approx. 0.97 kg / dm ³ , component B approx. 1.10 kg / dm ³
• viscosity approx. 180 mPa s (mixture at 20 C)
• Shore A hardness approx. 22 (according to PN-EN ISO 868)
• ambient and substrate temperature when applying from +5 C to +35 C
• storage time: product stored in original, unopened and undamaged packaging, in appropriate conditions, it is best to use within 24 months from the date of production
• storage conditions: store the product in original, unopened and undamaged packaging, in dry conditions, at a temperature of +5 C to +35 C; protect against direct sunlight and moisture
• 15.5 kg kit: component A 10 kg, component B 5.5 kg