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To determine the quality of integrated insulation and decoration panels, a systematic evaluation should be conducted from four dimensions: material body, process structure, performance verification, and on-site testing. Especially in Linyi, Shandong, it is necessary to strictly adhere to the mandatory standard JG/T 287-2025 implemented from June 1, 2025, to ensure A-level fire prevention and system safety.

1、 Material Body: Authenticity Identification of Core Material and Finish

The insulation core material of high-quality integrated board should be rock wool, inorganic modified board or TPA genuine gold board, with uniform density and no debris falling off. Poor quality products often use slag wool as a substitute for rock wool, with a grayish yellow cross-section, coarse and short fibers, and easy powdering when exposed to water; And real rock wool is dark brown in color, with fine and tough fibers. If the decorative layer is fluorocarbon metal paint, it should have a high fluorine content (≥ 20%), stable surface gloss, and no sagging; True stone paint requires consistent color sand batches and no significant color difference after spraying. You can use your nails to lightly scratch the finish, high-quality coatings have no scratches, and inferior paints are prone to leaving white marks.

2、 Process Structure: The Intrinsic Logic of Composite and Anchoring

The high-pressure composite process in the factory is the core of quality, and high-quality boards have no delamination, no bubbles, and no delamination. Sampling and sectional observation: The bonding layer should be uniform and dense, without glue accumulation or dry cracking marks. The anchor must be made of 316 stainless steel with a diameter of ≥ 6mm. If it is ordinary carbon steel, it will corrode and fail within six months. During installation, the single point anchoring force should be ≥ 0.6kN, with no less than 4 anchors per square meter, and must penetrate the insulation layer into the base layer by ≥ 25mm.

3、 Performance Verification: Authoritative Verification of Test Reports

All products must provide a type inspection report, which must meet the following requirements:

The issuing institution has CMA qualification and the report is stamped with CMA seal;

The testing basis is JG/T 287-2025 or GB/T 30595-2014;

Clearly label the combustion performance as Class A, bond strength ≥ 0.15MPa, and resistance to freeze-thaw cycles ≥ 30 times without cracking;

The validity period of the report shall not exceed 2 years, and it shall be invalid upon expiration.

Can be accessed through the National Engineering Quality and Safety Supervision Information Platform（ https://zlaq.mohurd.gov.cn ）Query the qualifications of the enterprise and the registration information of the testing institution, and verify the authenticity of the report.

4、 On site testing: rapid judgment method using non professional tools

Tap and listen for sound: Use a hollow drum hammer to lightly tap the four corners and center of the board surface. A crisp "click" sound indicates solid adhesion, while a hollow "dong dong" sound indicates the presence of hollowing or layering. The area of hollowing on a single board should not exceed 5%.

Simple combustion test: Use a lighter to burn the corner of the board for 10 seconds, and the A-grade material will only slightly yellow, without open flames or molten droplets; B1 level will self extinguish but produce black smoke, while B2 level will continue to burn and drip molten material.

Hot water drop test: Drop a drop of 100 ℃ hot water onto the surface of the insulation layer, and the high-quality polyurethane or rock wool core material should not soften or deform; Poor quality EPS/XPS will quickly sink.

Sealing glue inspection: The board joint sealing glue should be silicone building sealing glue (GB/T 14683), with good elasticity and no cracks. Poor quality glue is prone to brittleness, yellowing, and peeling.

Warning: Products priced below 150 yuan/square meter are 99% inferior; Reject the routine of 'qualified samples, different batches'; All projects must retain concealed engineering image records, with a focus on capturing anchor installation, node closure, and board seam treatment.

Shandong Huaneng Insulation Materials is a pipeline insulation manufacturer in Linyi. As an integrated insulation and decoration manufacturer in Shandong, our main products include integrated insulation and decoration, pipeline insulation, exterior wall insulation materials, extruded polystyrene board, thermosetting polystyrene board, and rubber insulation. If you need it, you can contact us by phone.