SLAVYANKA two-component liquid rubber — sprayed seamless membrane

SLAVYANKA two-component liquid rubber is applied only by spraying with a two-channel unit: the bitumen-latex emulsion is fed together with an aqueous solution of a calcium chloride-based hardener. It becomes tack-free in 5…20 s, after 10 min the coating is rainproof, it can be walked on after 3 h, and up to 1,000 m² can be treated per shift. The membrane elongates by 1,500 % before break, is UV resistant and works from −65 to +110 °C. It is used on foundations and car parks, in tunnels and pedestrian underpasses, in pools and tanks, on pipelines and roofs.

Specifications

Manufacturer	Rastro (LAKHTA, SLAVYANKA, Izhora) — ZAO “Rastro”, Bolshaya Izhora
Type	mastics and liquid membranes
Use	foundations and basements, tunnels and metro, tanks and pools, interiors, roofs
Base	two-component water-based cold-applied bitumen-polymer compound: component A — bitumen-latex emulsion, component B — hardener (calcium chloride 90…99 %)
Colour	component A dark brown; membrane black
Packaging	component A — plastic drums of 60 and 220 kg, 1,000 kg plastic IBCs; component B — 2.5 kg polyethylene bags
Application method	mechanised spraying only, with two-channel equipment (SLAVIANKA Rubber Spray or equivalent, preferably with diaphragm pumps); component B is dissolved in water at 5 % (3…10 % depending on conditions); spraying ratio of component A / solution B 8/1 (up to 10/1); substrate sound, even, dry (moisture not more than 8 %), fillets with sides of at least 30 mm in internal corners; concrete with hardening accelerators and porous concrete — prime with component A (0.2…0.3 kg/m²); strips 1.0…1.5 m with an overlap of at least 10 cm, from low areas to high ones; reinforcement with spunbond up to 160 g/m², polyester or glass fabric; do not apply in rain
Application temperature	air and surface not lower than +5 °C; component A not lower than +5 °C; application temperature +5…+50 °C
Curing	tack-free 5…20 s; 75 % polymerisation 5 s after mixing; rain resistance after 10 min; foot traffic not earlier than after 3 h; full polymerisation of a 2 mm coat not more than 24 h (+20±2 °C, relative humidity not more than 60 %); final bond strength up to 14 days
Key properties	nominal tensile strength 1.0 MPa; elongation at break 1,500 %; bond strength to concrete 1.0 MPa, to metal 1.0 MPa; shear strength of the adhesive bond 2.6 kN/m; water absorption over 24 h 0.5 %; flexibility on a R5 mm bar −25 °C; Fraass breaking point −65 °C; heat resistance (5 h) +110 °C; water-tightness at 0.01 MPa for 24 h — no wet spot; vapour permeation resistance 1.5 m²·h·Pa/mg; solids content (comp. A) 62 %; density of comp. A 1.05 kg/dm3; service −65…+110 °C; UV resistance; application rate up to 1,000 m² per shift; not for contact with petrol, oils, petroleum products, organic solvents
Layer thickness	recommended 2…3 mm dry film; minimum 1 mm; maximum unlimited
Consumption	1.61 kg/m² of component A per 1 mm dry film; on concrete: standard method 3.5…5.5 kg/m², with priming or “dry-on-wet” 1.8…3.5 kg/m²; repair of roll roofing on average 3.0…5.5 kg/m² (seams 5…7 kg/m²)
Shelf life	12 months from the date of manufacture; store at +5…+35 °C; do not freeze component A
Standards	TU 5775-014-11149403-2010; compliance with GOST 30693-2000 and EN 1504-2:2004

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