FIELD: process engineering.
SUBSTANCE: invention relates to woodworking industry. Proposed water soluble powder composition comprises mineral salts and surfactants. Said mineral salts comprises crystal sodium tetraborate in amount of 15-50 wt % and natural halite with moisture content of 0.1-0.25 wt % and grain size less than or equal to 5 mm in amount of 50-85 wt %. Aforesaid surfactants represent sodium sulphonate in amount of 1-5 wt %.
EFFECT: composition provides for high fire resistance, low toxicity and reduced costs.
1 tbl, 3 ex
| Title | Year | Author | Number |
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