Caustic alkalis react with the paint coating and loosen it from the surface. Some people do not use caustic alkalis because caustic products can darken wood and raise the grain. Caustics can cause severe burns to skin and eyes even on short contact. Therefore, be very careful to keep caustic chemicals away from skin and eyes and wear protective clothing. If contact occurs, wash off immediately with cold water.
Caustics are also highly toxic if swallowed.
It is very important to avoid skin and eye contact when using caustic alkalis. Use gloves that fit properly and are appropriate for caustic alkalis. Wear appropriate protective clothing and goggles when using caustic alkalis. However, these paint strippers may be hazardous despite the smell and environmental claims. It is important to use appropriate protective clothing and fresh air for cross-ventilation when using these products.