Wet Chemical Extinguisher ID Sign | Polished Gold Finish, Landscape | 150mm x 100mm, RRFSO Compliant

FAQs

Why are wet chemical extinguishers essential for commercial kitchens?

Wet chemical extinguishers are the only type specifically designed and approved for Class F fires involving cooking oils and fats, which reach extremely high temperatures (up to 340°C) and can re-ignite if not properly extinguished. The Wet Chemical ID sign helps kitchen staff quickly identify this essential equipment. The wet chemical agent creates a foam-like layer over burning oil, rapidly cooling it below its auto-ignition temperature whilst forming a seal that prevents oxygen from re-igniting the fire. This makes wet chemical extinguishers mandatory equipment for any commercial kitchen with deep fat fryers, griddles or other high-temperature cooking equipment, and proper identification signage ensures staff can locate and deploy them effectively during emergencies.

What information does the Wet Chemical ID sign display?

The Wet Chemical ID sign displays the internationally recognised fire extinguisher symbol at the top, clearly indicating this is wet chemical extinguisher signage. It provides essential safety information showing that wet chemical extinguishers are specifically suitable for Class F fires involving cooking oils and fats, as well as Class A fires involving ordinary combustible materials like wood, paper and textiles. Critically, it also clearly indicates that wet chemical extinguishers must not be used on Class B flammable liquid fires (petrol, oils, solvents) or live electrical equipment, where the conductive wet chemical agent could create additional hazards or prove ineffective.

Where should wet chemical extinguisher ID signs be positioned in commercial kitchens?

Wet chemical extinguisher ID signs should be installed directly above or immediately adjacent to the wet chemical extinguisher, positioned at eye level where possible for maximum visibility. The sign should be clearly visible from typical approach routes within the kitchen so staff can identify the extinguisher type before reaching it. In commercial kitchens, wet chemical extinguishers are typically positioned near exit routes from the cooking area but not so close to cooking equipment that they become inaccessible during a fire. The 150 x 100mm landscape format provides good visibility even in busy kitchen environments whilst maintaining proportions appropriate for wall mounting above extinguisher locations.

Can wet chemical extinguishers be used on electrical fires in kitchens?

No, wet chemical extinguishers are not recommended for electrical fires as the wet chemical agent is conductive and could pose an electric shock risk. The Wet Chemical ID sign clearly indicates this limitation. For electrical equipment in commercial kitchens such as electrical ovens, microwaves, extraction systems or other appliances, a CO2 extinguisher should be provided in addition to the wet chemical extinguisher. Many commercial kitchens maintain both types to ensure comprehensive fire protection covering all potential fire classes likely to occur in the environment, with clear ID signage helping staff distinguish between them during emergencies.

What fire rating do wet chemical extinguishers typically have?

Wet chemical extinguishers typically carry ratings such as 8A 75F or 13A 75F, indicating their capability against both Class A combustible materials and Class F cooking oil fires. The “F” rating indicates the litres of burning cooking oil the extinguisher can tackle – for example, 75F means it can extinguish 75 litres of burning oil, making it suitable for protecting multiple deep fat fryers and other commercial cooking equipment. The dual A and F rating makes wet chemical extinguishers versatile for kitchen environments where both ordinary combustibles and cooking oil fires may occur, though the ID sign reminds users this versatility doesn’t extend to all fire classes.

Are wet chemical ID signs available in premium finishes?

While the standard photoluminescent wet chemical ID signs (codes 105P for portrait, 115P for landscape) provide excellent visibility and regulatory compliance, premium Contempo finishes may be available on request to coordinate with designer kitchen fire safety installations. For commercial kitchens with high-end aesthetics, particularly those with open-plan designs visible to customers, coordinating fire safety signage can maintain the premium appearance whilst meeting essential safety requirements. Contact CheckFire to discuss availability of premium finish options for wet chemical ID signs to complement designer kitchen installations.