Product Brief：
Two, silicon PU material construction
Here, a basic surface cleaning:
1, clean and with water wet surface, and then coated with dilute hydrochloric acid is about 5% and scrub;
2, clean the dust high pressure field.
Here, two base expansion joints and cracks:
1, the expansion joint and the crack mouth construction into V type (an inverted horn shape);
2, thoroughly clean the inside and remove the slot wall sediments, dirt, grease etc..
Here, three basic waterproof primer Construction: more than 0.2KG/m2
Waterproof primer for single component materials, with a roll coating method directly based on the dry cement penetration after construction; theory of material dosage of 0.2kg/m2, according to the rough degree of cement base surface, the amount of material will change. Shall be fully covered (including expansion joints and cracks in the wall), adhesive curing shall be 24 hours, 24 hours after the next process of construction.
Here, four foundation joints, cracks and low-lying water repair:
1, after strictly regulate the treatment based on expansion joints, cracks qualified, using silicon elastomer buffer material PU course according to the weight ratio of adding 5% purified water directly after high speed stirring to fill a flat.
2, repair the site water, can use D68 emulsion product scraping and coating repair level.
Here, five principal elastic construction: more than or equal to 6KG/m2, three layer construction
The construction of the elastic layer: before construction according to the weight ratio of 1-3% (according to the construction of environmental temperature and humidity adjustment) add water purifying high speed stirring and instant fast construction; the construction of a smooth toothed trowel.
Construction: six, wear resistant finish surface layer: more than 0.2KG/m2, the construction of roller coating or coating layer not less than two
Silicon PU water-based paint is a two-component materials, must be in the correct proportion of provisions in the construction (topcoat: crosslinking agent =14:1, and the ratio of no uneven stirring performance will reduce the use of surface layer and the bottom adhesion) two components are fully and quickly use the instant high speed stirring. The construction method is limited to the way of rolling and coating or spraying, and the roller is used to change the direction of roller. Finish the construction temperature is lower than 5 DEG C is not suitable for construction, 10 hours after the construction of anhydrous immersion.
Case seven and site 72 hours after the completion of cleaning, maintenance can be put into use.
This guide only for the use of silicon PU materials to provide guidance in the nature of the site construction of some of the details of the site should be properly handled according to the situation.