weber.tec Superflex OS 5b

Name: weber.tec Superflex OS 5b
Brand: Weber

Surface protection system OS 5b

weber.tec Superflex OS 5b is highly flexible, 2-component, reactive quick-setting surface protection coating (OS-5b) and flexible polymer-modified thick-layer waterproofing coating (FPD)

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Features and benefits

Product uses

as protection system coating OS-5b
as waterproofing coating on socket areas
as waterproofing of earth-contacting building parts

Product benefits

cold-flexible up to -20°C
resistant to thawing salts
quick-setting and resistant to water pressure

As a cold-flexible OS-5b surface protection coating according to EN 1504-2.
Also as chloride and carbonation protection of concrete building parts in building construction and civil engineering.
For new constructions and renovation works of non-trafficable areas, e.g. underground garages, parking decks and other interior and exterior building components exposed to splash water and thawing salts.
Furthermore, for the flexible waterproofing of socket areas and earth-contacting building parts (basement walls, foundations etc.) on concrete, cement render, brickwork and blockwork, according to DIN 18533. It is dedicated to the case of ground damp and non-pressure water (class of water load W1-E) and the cases of splash water and horizontal barrier against capillary water in and under walls of socket areas (class of water load W4-E).

Main features

EMICODE EC 1 PLUS: very low emission of volatile organic compounds (VOC)
combines the advantages of FPD with those of a surface protection system OS-5b
fulfills the test principles for FPD (flexible polymer-modified thick-layer waterproofing coatings) with crack-bridging class R2-E
fulfills the test principles for surface protection system OS-5b according to EN 1504-2
crack-bridging up to 0.5 mm
weather-independent drying through a reactive setting within 24 hours
can be overworked on walls after 120 minutes at +23°C and 50% rel. humidity rate
can be covered with render or paint
can be applied by spraying machine (with peristaltic pump technology or screw pump technology)
high percentage of dry residue of approx. 95%
high pull-off strength
high brake effect against CO₂
open to the diffusion of water vapour
as waterproofing of mineral substrates
for use indoors and outdoors

Technical values

Application temperature (air and substrate)	+5°C - +30°C
Pot life	50 minutes
Mixing ratio	approx. 1 : 1 part by weight
Drying time at +20°	10 hours
Drying time at +5°C	< 24 hours
Rain resistant	after 2 hours
Fresh mortar bulk density	approx. 1.1 kg/dm3
Dry residue	95%
Class of crack-bridging	class B2 (at -20°C)
Pull-off strength on concrete	> 0.8 N/mm2
CO₂ permeability	Sd >200 meters
Water vapour permeability	Sd < 5 meters
Watertightness	< 1.5 bar after 1 hour
Class of reaction to fire	E (EN 13501-1)
Clean-up	water (fresh product); mechanical means (dry product)
Application tools	electric drill + basket mixer, spraying device, block brush, flat trowel, notched trowel, roller
Colour	grey
Consistency after mixing	brush-grade, roll-grade, trowel-grade, spray-grade

Storability

Storage	The product can be stored for at least 12 months in its original unopened packaging if kept dry and frost-free. Frost will destroy the product. After thawing it is not allowed to use it.