Decorative tunnel fireproof coating is an expansive water-based fireproof coating that can be applied to the surface of combustible substrates. It not only has a decorative effect due to its flat coating, but also provides fire protection and prevents flame spread to the combustible substrates during a fire. The coating on the surface of the substrate expands and foams in case of fire to form a foam layer. The foam layer not only insulates oxygen, but also has good thermal insulation performance because of its loose texture, which can delay the rate of heat transfer to the coated substrate; The process of coating expansion and foaming to produce foam layer presents endothermic reaction due to volume expansion, and also consumes a lot of heat, which is conducive to reducing the temperature of the fire scene. Due to its significant fire prevention and decorative effects, this product can be widely used in combustible substrates such as wood and its products, fiberboard and its products, cardboard and its products, as well as other indoor decoration materials with a combustion performance level design requirement of B1 in industrial and civil buildings. The phenomenon of detachment of tunnel fireproof coating after construction and painting is caused by both the problem of tunnel fireproof coating and the unprofessional construction personnel. Generally, it is not a problem to purchase construction coating from formal channels, but mainly due to inadequate construction by construction personnel. What are the construction requirements for tunnel fireproof coating construction technology? The editor has provided some explanations in the following text. 

(1) The certificate of conformity for tunnel fireproof coating construction products is complete, and the products have passed the performance testing of the National Fireproof Building Materials Quality Supervision and Inspection Center. The variety, specifications, and performance of the materials should comply with the current relevant national standards and design requirements.

(2) After the construction of tunnel fireproof coating enters the site, it should be sampled and retested according to the current national standards or the provisions of this construction organization plan, and a test report should be submitted. Unqualified materials shall not be used.

(3) The construction of tunnel fireproof coating should be carried out after the detailed construction is completed and accepted as qualified.

(4) The base layer of tunnel fireproof coating should be flat, sturdy, clean, free from peeling, sanding, and looseness. 

(5) Tunnel fireproof coating should be stored in a dry, ventilated, and cool place, and the storage time should not exceed 6 months. 

(6) Tunnel fireproof coating should be carried out by a qualified coating or coating professional team that has passed the qualification review.

(7) Before the construction of tunnel coating, the construction manager should provide technical briefing to the team, including the construction site, construction sequence, construction process, engineering quality standards, technical measures to ensure quality, finished product protection measures, and safety precautions.

(8) The construction unit of tunnel fireproof coating should have a dedicated person for construction management and quality control.

(9) The construction of tunnel fireproof coating should establish a "three inspection" system of self inspection, handover inspection, and full-time personnel inspection for each process, and complete inspection records should be kept. Without inspection and acceptance by the supervisor (or owner representative), the next construction process shall not be carried out.

 (10) The construction of tunnel fireproof coating finish should be carried out after the fireproof coating is completely dry.

(11) After the completion of tunnel coating construction, quality inspection should be carried out in accordance with the relevant national standards or the provisions of this construction organization plan.

(12) Tunnel fireproof coating should be applied under ambient temperature conditions of 5-35 ℃.

Tunnel fireproof coatings can play a role in fire prevention. Generally, tunnel fireproof coatings with high construction technology will not peel off, so strict requirements must be met during construction to ensure the quality of construction. Jiangsu Tunnel Fireproof Coating