Fire Retardant Coatings Tester – Tunnel Method

The fire retardant coating flame propagation tester is suitable for testing the flame propagation characteristics of the fire retardant coating on the surface of the substrate under laboratory conditions, and evaluating the protection effect of the fire retardant coating on the substrate and its flame propagation performance.

Application

This method is suitable for testing the flame spread characteristics of fire-retardant coatings applied to substrate surfaces under laboratory conditions, and for evaluating the protective effect of the fire-retardant coating on the substrate and the quality of its flame spread performance.

Standards

GB/T12441-2005: Finishing fire retardant paint

GB12441-2018: Finishing fire resistant coating

Feature

Small Chamber Method:

1. The test device is made of bent stainless steel plates, featuring a beautiful design, smooth lines, and resistance to smoke, corrosion, and aging, ensuring durability.

2. The burner in this test device has undergone standard testing and meets national standards.

3. The specimen installation position is strictly manufactured according to the structure specified in the standard, making installation convenient and easy to adjust.

Large Panel Method:

1. The electrical box of the test device is made of bent stainless steel plates, featuring a beautiful design, smooth lines, and resistance to smoke, corrosion, and aging, ensuring durability.

2. The burner in this test device has undergone rigorous standard testing and meets national standards.

3. The specimen installation position is strictly manufactured according to the structure specified in the standard, making installation convenient and easy to adjust.

4. Touch-sensitive button design, capable of automatically recording temperature, and automatically starting and ending the test.

5. Control system: The control core adopts an imported Omron PLC and integrated temperature expansion module design, which effectively reduces interference and improves equipment stability.

Tunnel Method:

1. The electrical box of the test device is made of bent stainless steel plates, featuring a beautiful design, smooth lines, and resistance to smoke, corrosion, and aging, ensuring durability. The tunnel furnace is welded from a metal steel frame, resulting in a sturdy structure and convenient use.

2. The burner in this test device has undergone standard testing and meets national standards.

3. The specimen installation position is strictly manufactured according to the structure specified in the standard, making installation convenient and easy to adjust.

4. Touch-sensitive button design, capable of automatic temperature control and automatic cyclic timing alarm.

5. There is an observation window with scale markings made of quartz glass or high-silica glass on the lower side of the test plate support, allowing for real-time observation of the experiment progress.

Working conditions

Ambient temperature: 5——35℃

Relative humidity: not more than 85%

Working environment: indoor without forced ventilation

Power supply :AC200——240V, 50HZ

Technical parameters

Test Procedures

Equipment Composition: The tunnel method tester consists of a main control box and a combustion chamber. The combustion chamber is a tunnel furnace welded from a metal steel frame, equipped with natural ventilation ports, gas supply ports, and a graduated observation window. The control box is equipped with a digital display temperature control system, a gas flow rate adjustment device, and a combustion temperature recorder.

Test Conditions: The test uses a standard flame of 900±20℃. Temperature monitoring is achieved through thermocouples and an electronic potentiometer. Environmental conditions must meet the requirements of a temperature of 5–35℃ and a relative humidity of ≤85%.

Test Procedure: Under laboratory conditions, the flame propagation characteristics are tested using the tunnel method tester to evaluate the protective effect of the fire-retardant coating on the substrate and the quality of its flame propagation performance.

Results Analysis: Through quantitative analysis, the performance of the fire-retardant coating is evaluated, providing an objective basis for the use and selection of fire-retardant coatings.

The tunnel method test provides objective experimental evidence for the performance evaluation of fire-retardant coatings and is suitable for quantitatively testing the flame retardant performance of fire-retardant coatings applied to the surface of substrates under laboratory conditions.

Conclusion

The Tunnel Method Fire Retardant Coating Tester offers precise and standardized evaluation of flame propagation and protective performance for coatings. It supports laboratory testing, quality control, and regulatory compliance, providing objective data for material safety assessment.

FAQ

1. What is this product?
It is a tester for evaluating the flame propagation characteristics and protective effect of fire-retardant coatings on substrates.

2. What is this product used for?
To measure flame spread and assess the protective performance of coatings in laboratory conditions.

3. What is the working principle of this product?
A controlled flame is applied to the coated substrate in a tunnel furnace, while sensors monitor temperature and flame propagation. Results are recorded and analyzed to evaluate coating performance.

4. Why is this product important?
It ensures that fire-retardant coatings provide reliable protection for substrates, meeting safety and regulatory standards.

5. What industries is this product suitable for?
Construction, decorative coatings, material research, fire safety laboratories, and quality control departments.