The invention relates to a construction paint, particularly a 
lithium-base permeable 
crystallization cement sealing and solidifying agent. The 
cement sealing and solidifying agent is composed of 15-20 parts of 
sodium silicate, 8-15 parts of 
lithium metasilicate, 3-5 parts of 
magnesium fluosilicate, 2-4 parts of 
sodium dihydrogen 
phosphate, 0-6 parts of water-based color paste for paint and 50-70 parts of water. The construction technique comprises the following steps: new ground: troweling the new ground, carrying out primary hardening, 
coating the solidifying agent, completely 
drying and curing, flushing the ground with clear water, naturally 
drying, and sanding and 
polishing with a 
sander; and old ground: sanding and cleaning the old ground, 
coating the solidifying agent, naturally 
drying, cleaning the ground, naturally drying, and sanding and 
polishing (or additionally 
coating solidifying agent, cleaning the ground, naturally drying, and sanding and 
polishing). By using the solidifying agent and construction technique, the strength, 
hardness and compactness of the concrete are greatly enhanced, and the durability and 
weathering resistance of the concrete are effectively improved.