Can this be used to seal the inside of concrete candle vessels?

Sodium silicate, when correctly applied to concrete dramatically reduces the porosity. I don’t know what a concrete candle vessel is but going back to basics, if reduced porosity and ultimately sealing the concrete is the required property then it can be achieved with sodium silicate. It was used in concrete fuel tanks in WW2 and also to manufacture disposable aircraft fuel tanks from silicate coated cardboard drums

Is this sodium silicate the same as used when working with pottery clay makingclay

Yes this is used to reduce the viscosity of the slip without reducing the overall solids content

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Liquid Sodium Silicate 40% – Water Glass, Liquid Glass for Bonding, Metal Repair & Adhesive – High-Temperature Sealer for Automotive & Industrial Use – Perfect for Concrete, Glass, 5 Litres

Product ID: 105497943

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Material
Sodium
Brand
Chemiphase
Style
Compact
Item weight
5 Kilograms
Compatible material
Aluminium

🔥Withstands up to 815°C

🏗️Multi-surface bonding (metal, concrete, glass)

🛠️Superior adhesive strength

Description

🔥 Seal it. Fix it. Forget it. The ultimate liquid glass solution.

HEATPROOF HERO - Seals leaks and joints that survive extreme temperatures up to 815°C—no meltdown, no mess.
INSTANT LEAK FIX - Stops radiator steam leaks within minutes by forming a glass-like, durable seal—perfect for emergency head gasket repairs.
LONG LASTING DURABILITY - Creates a hard-wearing, protective surface that stands the test of time and tough environments.
VERSATILE BONDING POWER - Bonds metal, concrete, glass, and porcelain with industrial-grade strength for automotive and construction pros.
PRO GRADE INDUSTRIAL SEALANT - Trusted by mechanics and builders alike for high-temp exhaust repairs and heavy-duty sealing jobs.

Liquid Sodium Silicate 40% is a high-performance, heat-resistant adhesive and sealant designed for automotive, industrial, and construction applications. It forms a durable, glass-like bond that withstands temperatures up to 815°C, making it ideal for metal repairs, concrete sealing, and emergency radiator leak fixes. Supplied in a 5-litre compact container, this versatile liquid glass ensures long-lasting protection and professional-grade results.

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Manufacturer	Chemiphase Ltd
Part number	SOD-005
Item Weight	5 kg
Item Weight	5 kg
Manufacturer reference	SOD-005
Colour	Red
Style	Compact
Material	Sodium Silicate
Volume	5 Litres

Liquid Sodium Silicate 40% – Water Glass, Liquid Glass for Bonding, Metal Repair & Adhesive – High-Temperature Sealer for Automotive & Industrial Use – Perfect for Concrete, Glass, 5 Litres

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