1
Check the product and temperature
Confirm that the aerosol is suitable for the job and is within the product’s recommended application temperature range.
Paint Spluttering
Spluttering usually means the coating is not atomising consistently. Temperature, shaking, nozzle condition, spray technique and can pressure can all contribute.
Quick answer
Before changing the paint system, check the basics: shake thoroughly, confirm the correct temperature, inspect the actuator, and make sure you are using the correct spraying distance and orientation.
What to do
2
Shake the aerosol thoroughly
Shake vigorously for the time specified by the manufacturer. Continue shaking periodically during a long spraying session.
3
Inspect the spray actuator
Look for dried coating, damage or a loose actuator. Replace a removable actuator where the product instructions allow it.
4
Test your spray distance
Hold the can at the distance specified by the product. Too close can overload the surface; too far can cause dry spray and uneven deposition.
5
Use controlled overlapping passes
Move the can smoothly and keep the spray motion consistent. Avoid stopping directly over the panel.
6
Allow the can to recover
During prolonged use, pressure and temperature can change. Follow the product instructions and allow the can to stabilise where required.
7
Check the substrate and previous coat
A contaminated, wet or incompatible substrate can make a normal spray appear defective by causing uneven wetting or rapid rejection.
8
Stop if spluttering continues
If the can continues to spit after the basic checks, stop using it and contact AerosolsRus rather than trying to modify the valve.
Important
Follow the product label and current Technical and Safety Data Sheets. Do not modify, puncture or misuse aerosol containers.
Common mistakes to avoid
Applying the aerosol too close to the surface
Review this point before continuing with your coating system.
Failing to shake the can properly
Review this point before continuing with your coating system.
Spraying with a partially blocked actuator
Review this point before continuing with your coating system.
Trying to solve spluttering by spraying faster
Review this point before continuing with your coating system.
Painting a damp or contaminated surface
Review this point before continuing with your coating system.
Continuing to use a can that may have a mechanical fault
Review this point before continuing with your coating system.
Frequently asked questions
Why is my aerosol paint spitting?
Common causes include a partially blocked actuator, insufficient shaking, unsuitable temperature, poor can orientation or a mechanical issue.
Does shaking really make a difference?
Yes. Paint components can settle during storage and need to be re-dispersed so the aerosol can atomise correctly.
Can cold paint cause spluttering?
Yes. Low temperature can affect viscosity and pressure, so follow the product label for the recommended application conditions.
Could the surface preparation cause spluttering?
Poor preparation usually affects wetting and adhesion rather than the aerosol valve itself, but it can make the finish appear uneven.
When should I contact AerosolsRus?
Contact us when sensible application checks do not resolve the problem or when you suspect a faulty can.
Still need help?
Tell us about the project, substrate and coating issue and our paint experts can help you choose the next step.
Contact a Paint Expert