Silicate Paint

About

• Siliates uses brochure - [1]
• Silicate mineral paints - https://en.wikipedia.org/wiki/Silicate_mineral_paint
• German manufacturer discussses 3 generations of this paint - [2]
• Impregnate with silicate, and preferably also soluble borate - then treat with carbon dioxide - to make wood fireproof - [3]
• Silicate preservation patents - [4]

• Paint with sodium metasilicate, followed by magnsium sulphate (epsom salt)
• Paint with sodium metasilicate, followed by calcium chloride (deice salt, $20 for 50 lb - patent [5]. After applying the silicate and chloride, the product is calcium silicate, which is insoluble.

Designing the Paint

• How sodium silicate has been used in wood prervation from prior art of a recent patent - [6]
• Sodium silicate preserves wood - [7]. Open source this.

Sourcing

• $2/lb for 50 lb bag. [8]
• Potassium silicate - <$1/lb on ton scale - [9]
• Sodium silicate - $200/ton - [10]
• But wikipedia says that Minaral Silicate Paint uses potassium silicate. -[11]
• $5/lb in 50 lb bags - [12]
• $35 for a gallon of 40% solution on Amazon - [13]

Making

• You can make it from potash (KOH) reacted with silica desiccant beads - [14]

Buying

• https://www.keim.com/en-de/products/wood-coating/

Other Methods

• Acetylation makes wood last for ever - https://en.wikipedia.org/wiki/Wood_preservation.

• Acetic anhydride - autoclave treatment of wood - [15]. It is used to make heroin, so it may be restricted.
• Article on acetylated wood - [16]
• 55 gallons for $3k - [17]