1. Short- and Long-Term Health Issues
Who wants to put their health at risk for the sake of household repairs? Short-term exposure to mending agent toxins like ethyl acetate and xylene can cause irritation to the eyes and throat, headache, and dizziness. These side effects stem from mere inhalation, which makes them especially dangerous in confined indoor spaces.
Methylene chloride and carbamates can cause skin irritation if you accidentally come into physical contact with a product. In the long-term, they can cause damage to your internal organs.
Other common chemical ingredients include formaldehyde and benzene. Exposure to formaldehyde might lead to long-term respiratory issues, while benzene might precipitate a decrease in red blood cell count, which in turn can lead to anemia. Benzene can also create immune deficiencies in the body that put you at a higher risk for infection.
2. Acute Toxicity for Kids or Pets
If accidentally ingested, toxins like formaldehyde and phenol can prove fatal. Phenol also has the capacity to be deadly on contact, because it can penetrate skin rapidly — and can even penetrate leather.
The presence of these chemicals in household mending agents presents an acute danger to small kids or pets, who might not know to stay away if left unattended, even for a moment.
Even after you've completed a wall fix, you're not out of the danger zone. In addition to long-term health risks, most standard mending agents contain chemicals (like ethyl acetate and xylene) that are highly flammable. House fires are always a worst case scenario, but it never hurts to avoid products that cannot withstand heat or might accelerate an already bad situation.