Although I understand your concerns about asbestos, it is highly unlikely that the plaster contains any. Even if it did, the crack would not necessarily be realising the fibres into the air. Asbestos is pretty safe until you start to snap or sand it.
Just get some filler and fill the crack. Red Devil OneTime will fill it in one hit without slumping, but will take a while to dry to the point of being able to sand it.
Typically, in domestic homes, asbestos would be found in fireproofing/insulation products and not all asbestos is mega evil. You can buy testing kits if ever you are worried.
Just get some filler and fill the crack. Red Devil OneTime will fill it in one hit without slumping, but will take a while to dry to the point of being able to sand it.
Typically, in domestic homes, asbestos would be found in fireproofing/insulation products and not all asbestos is mega evil. You can buy testing kits if ever you are worried.