CarbonWrap Putty S is used to prepare the surface for the external reinforcement system: to repair small defects and cracks, level the substrate and install carbon rods. The components are mixed at a ratio of 100:15 by weight to a uniform grey colour and applied with a spatula without a separate primer, and work can continue after 24 h at +23 °C. This is the summer version for air temperatures from +10 °C; the bond to concrete is more than 2.5 MPa, and the kit weighs 31 kg.
| Manufacturer | CarbonWrap — OOO “Nanotekhnologicheskiy tsentr kompozitov”, Moscow |
|---|---|
| Type | composite strengthening |
| Base | two-component epoxy putty paste: component A — thixotropic blend of epoxy resins, reactive diluents, fillers, pigments and functional additives; component B — polyamine hardener with filler and special additives; solvent-free |
| Colour | component A — grey; component B — white; mix — grey |
| Packaging | kit of 31 kg: component A — 27 kg pails, component B — 4 kg pails |
| Application method | surface preparation for the external reinforcement system, repair of small defects and levelling before installing CarbonWrap, crack repair, installation of carbon rods (composite rebar); no separate primer required; A:B = 100:15 by weight; mixing with a low-speed mixer at 300–400 rpm with a paddle for 3 min, especially at the bottom and walls, until uniformly grey, then 1 min at low speed to reduce air entrainment; applied with a spatula |
| Application temperature | from +10 °C; air +10…+35 °C; relative humidity no more than 80 % |
| Curing | further work — 24 h after application at +23 °C |
| Key properties | dynamic viscosity, Brookfield RVT at 25 °C, 2 rpm: A (N=7) 1500–3000, B (N=7) 125–300 Pa·s; mix density at 20 °C no more than 2.3 g/cm3; pot life at 20 °C at least 60 min; bond strength (adhesion) > 2.5 MPa (failure in the concrete); shear strength (7 days at 23 °C) at least 12 MPa |
| Shelf life | 36 months from the date of manufacture; in intact factory packaging in warehouses at +5…+30 °C; do not stack pallets with components on top of each other |
| Standards | TU 20.30.22-069-38276489-2017 (identical to 2312-069-38276489-2017); certificate of conformity to the TU, certificate of conformity to the technical regulation on fire safety requirements, sanitary and epidemiological conclusion, SGR |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Unidirectional carbon tape for the CarbonWrap external reinforcement system, in rolls 150, 300 and 600 mm wide; fibre strength over 4.9 GPa.
CFRP laminate with an epoxy matrix for strengthening beams, bridges and industrial buildings; width 50 or 100 mm, strength above 3500 MPa.
Epoxy saturating resin for impregnating and bonding carbon and other reinforcing fabrics and tapes by the “wet” method; bond to concrete above 2.5 MPa.
Epoxy saturating resin for high-density carbon materials, for hand and machine impregnation; the “winter” version works from +10 °C.
Unidirectional carbon tape 300 mm wide for external reinforcement of columns, beams and other structures with CarbonWrap Resin saturating resin.
Carbon grid on 24K yarn for external and internal reinforcement of bridges, tunnels, tanks and columns in mineral repair mortar.
