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The water sand construction, cannot ignore is a use of the gun

by:Opal     2021-01-18
As the mainstream product of exterior wall decoration, construction of water bag sand stones coating has been the focus of attention. Although some water sand bag products do a good job of it, but the construction effect is still unsatisfactory, the use of the spray gun can be ignored.


1。 Mobile 'gun' approach


the water sand blasting method is horizontal movement and vertical movement or cycle injection, not overlapping in the horizontal and vertical direction, or mixed. Spray gun head must be slow, level and directly against the wall, to ensure that the particle diffusion.


2. 'Gun' movement rhythm


the water color of sand stone paint what adornment effect? Construction process is the most critical part, gun movement speed is the key.


( 1) Water pack sand spraying process, if gun moves too fast, water bag of sand surface coating will become thinner, thinner coating effects, not full, inferior, is invalid.


( 2) If the spray gun movement speed too slow, coating is too thick, lead to sagging.


( 3) Water pack sand gun movement speed should make full spray coating, uniform, moist, this requires construction personnel have certain experience.


3. 'Gun' and the Angle between the wall


in the process of spraying, the spray gun and metope should maintain vertical or vertical as far as possible, because if the spray gun, spraying with deflection, the sand in the water color stone coating will flow to the side, the other half will be lack of paint, dry, thin, appear even stripe coating. Spray particles may be thin, or may not form point, very ugly.


4. 'Gun' and the construction of metope distance


generally for pack sand water gun, best working distance between 40 cm to 90 cm. If the gun to get too close to the walls, could lead to paint flow, irregular surface particles. If the distance is more than 90 cm, the pressure of the spray gun will be too high, particle breaking point will be formed in the walls too much, easy to produce ultra small particles or stains, make the flatness and poor flowing property of the coating. For the distance of the gun, also want to careful analysis shows that the degree of particles, determine the spraying distance.


5. Control 'gun' trigger handle


the trigger is used to control the flow of injection lance. Pull the trigger, the greater the flow velocity of the water sand colored stone paint. When spraying equipment moving, the trigger must be closed, not half closed. To avoid accumulated at the end of the spray coating, construction personnel should be slightly loosen the trigger, to reduce the material supply.
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