Water glass | Glass varnish | Kiesol | Sodium metasilicate
€ 23,50
Water glass (sodium metasilicate — also Kiesol or Glass Varnish) is a highly concentric silicate solution that, as an additive in mortar and concrete, closes capillary pores and thus significantly reduces water absorption. Undiluted or diluted, it can be injected or applied to mineral surfaces to permanently block rising damp in walls and floors.
Description
Want to buy a water glass?
Waterglass solution specially formulated for construction and industrial applications where a durable, water-repellent and fast-hardening matrix is required. Due to its high concentration it reacts directly with free calcium in cementitious materials, creating a dense CSH network.
CAS/EC | 1344-09-8 / 215-687-4
Delivery | Fast shipping, directly from stock
Application | Mortar & concrete, moisture injection, surface impregnation
Why choose Water Glass 37%?
Waterproofing additive – fills capillary pores and reduces water absorption in mortar and concrete.
Faster early strength – accelerates the first hydration phase, ideal for precast elements.
Versatile in use – can be used as an injection fluid against rising damp and as a surface impregnation.
Applications of Water Glass
- Mortar and concrete – add 2–5% of cement weight via the mixing water; improves density and shortens formwork removal time.
- Injection against rising damp – diluted 1:1 with demineralised water, Ø 12 mm drill holes at 10–12 cm centre-to-centre; forms an insoluble silicate gel in-situ.
- Surface impregnation – 5–10% solution wet-on-wet rolling or spraying; allow to dry for at least 8 h before further finishing.
Health and Safety
Danger
Hazard statements (H phrases)
- H318: Causes serious eye damage.
- H315: Causes skin irritation.
Precautionary measures (P-phrases)
- P264: Wash thoroughly after handling this product.
- P280: Wear protective gloves/protective clothing/eye protection/protective footwear.
- P302+P352: IF ON SKIN: Wash with plenty of water.
- P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. remove contact lenses, if possible; keep rinsing.
- P310: Immediately call a POISON CENTER/doctor.
- P321: Specific treatment (consult a physician with the Safety Data Sheet of this product).
- P332+P313: If skin irritation occurs: Get medical advice/attention.
- P362+P364: Remove contaminated clothing and wash before reuse.
FREQUENTLY ASKED QUESTIONS – FAQ
Is water glass the same as Kiesol or Glass Varnish?
Yes. It is the same sodium metasilicate solution; only the trade name is different.
How do I add water glass to mortar?
First dissolve the desired quantity in the mixing water, then add dry components. Take into account a slightly higher viscosity and process within ± 60 min.
Can water glass make concrete floors waterproof?
Addition to the concrete mix reduces capillary uptake; for existing floors, wet-on-wet impregnation or injection works better.
Is water glass flammable?
No. The solution is water based and non-flammable.
Is water glass safe for metal reinforcement?
Yes, no significant corrosion has been observed for structural steel and stainless steel; avoid direct contact with zinc or tin.
Reviews
There are no reviews yet