Sealcoating can be dangerous if not done correctly. It is essential to use the correct type of sealer for the specific asphalt surface and follow all safety precautions when applying it. Ventilation is necessary when utilizing a solvent-based sealer to avoid breathing in toxic fumes or contact with skin that can cause burning and discomfort. Additionally, any chemicals used during application should always be handled carefully and stored safely away from children and pets. Lastly, extreme caution should also be taken while working around traffic, as it can create hazardous conditions for workers and motorists.