Is resorcinol an allergen?
Resorcinol monobenzoate is an ultraviolet light absorber used in cellulose plastics and is known to cause allergic contact dermatitis reactions. It is the most important allergen in spectacle frames but can be a potential allergen in shoes as well.
What is resorcinol formaldehyde?
Resorcinol glue, also known as resorcinol-formaldehyde, is an adhesive combination of resin and hardener that withstands long-term water immersion and has high resistance to ultraviolet light. The adhesive, introduced in 1943, has been popular in aircraft and boat construction.
Can someone be allergic to formaldehyde?
Exposure may cause wheezing, asthma attacks and other respiratory symptoms. Individuals vary in how they respond to formaldehyde. Some people have a natural allergic sensitivity to airborne formaldehyde and others may develop an allergy as a result of skin contact with liquid formaldehyde.
What does a formaldehyde allergy look like?
Exposure to formaldehyde gas may cause burning sensations in the eye, nose and throat, skin rashes, tightness of the chest and wheezing, fatigue and headaches. These symptoms may be a result of a primary irritant effect or an allergic sensitisation to formaldehyde.
What is resorcinol formaldehyde used for?
Resorcinol reacts with Formaldehyde to form polymers. Resorcinol formaldehyde resins cure at room temperature. They form a very strong bond that is resistant to moisture, acids and weathering. Resorcinol resins are used as adhesives for wood veneers, plywoods, and for rubber-textile laminates.
What does formaldehyde do to a living person?
Still, doctors know that formaldehyde can cause a number of harmful effects in living people. If injected into a person, formaldehyde can cause red blood cells to rupture, and it can also lead to a condition called acidosis, in which a person has too much acid in their blood, Hoyte said.
What percentage of people are allergic to formaldehyde?
The prevalence of contact allergy to formaldehyde 1% was 1.5%, and ranged between 0.97% and 2.3%, with a decreasing trend in this 10-year period. Contact allergy to formaldehyde 2% was found in 2.4%, and no significant trend was observed.