The main reasons for the substandard two-component spraying marking line include:

Reason A: Uneven closure or single component at both ends of the reticle

Solution: Attach adhesive tape or use a baffle at the beginning of the marking line and at the break

Reason B: Inaccurate lay-off dots

Solution: Carefully check the construction drawings or according to relevant standards, and carefully arrange the ruler and stake

Reason C: Blocking the gun, causing a single component, and the line type is damaged after opening to traffic

Solution: Clean the spray gun, check whether the filter screen is damaged and replace it, and filter the impurities in the paint

Reason D: The gun is not aligned, resulting in a single component, the wheel is crushed after opening, and the line is damaged

Solution: Carefully adjust the gun before construction to ensure that the spray width of A and B guns is the same

Reason E: The maintenance kit is worn, the pressure is unstable, the gun is retracted, and the line type is not up to standard

Solution: Replace the repair kit

Reason F: The construction speed is too fast or uneven, and the required thickness or thickness is uneven

Solution: Move the cart at a constant speed, or add a booster

Reason G: Insufficient material, insufficient mixing of AB material

Solution: During the construction process, always pay attention to the paint in the barrel and add materials in time

Reason H: The belt is loose, the engine is not powered, and the belt cannot be moved

Solution: Tighten or replace the belt with a new one

Reason I: The cleaning liquid in the pipe is not drained, resulting in a single component, and the markings are damaged after opening to traffic

Solution: Carefully drain all pipelines before construction to avoid air and cleaning agent residues (drain the cleaning agent first, drain the return pipe like a paint bucket after draining the normal paint color)

Reason J: The return is not complete, the air is not exhausted, and the markings sprayed to the ground are damaged

Solution: Thoroughly return the air before construction (drain the cleaning agent first, drain the normal paint color and then put the return pipe like a confluence in the paint bucket)

Cause K: The thinner is unevenly agitated, resulting in uneven atomization

Solution: Re-stir well

Reason L: The viscosity of the paint is too high, the atomization is not good, and the thickness of the marking surface is uneven

Workaround: Add diluent adjustment

Reason M: Unstable pump pressure and uneven thickness

Solution: Check whether the belt of the car is loose and check whether the engine is working properly

Reason N: The equipment pressure is too low, the reticle is thin

Solution: Increase the pressure on the equipment

Reason O: The nozzle flow size is not appropriate

Solution: Choose the appropriate nozzle for different line widths (nozzle selection table)

Reason P: The nozzle is seriously worn, the spray line shape is not good, and the round is drawn

Solution: Replace the appropriate nozzle

Reason Q: Walking too fast and thin lines

Solution: Apply at a uniform speed or add a booster according to the required thickness

Reason R: The cart rider is inexperienced, the cart is not straight or the speed is uneven

Solution: Practice more and change to a skilled trolley