What are the minimum order quantity and delivery cycle?

Standard products min 1kg, bulk 20kg. In-stock ships 48h, custom 3-7 days. Nationwide logistics.

How to get product samples and technical support?

Contact 400-901-0757 or +86-13531350189 for free selection guidance and sample delivery.

What quality certifications do products have?

产品按标准化的来料检验、配方变更、批次留样与出货检验流程管理生产。体系证书、第三方检测报告（耐候、耐温、盐雾、附着力、VOC 等）及 MSDS/SDS 可应客户所在市场的合规要求提供，也可在验厂时现场调阅。

膨胀型防火涂料施工前基材如何处理？

钢结构表面喷砂处理至Sa2.5级（ISO 8501-1），表面粗糙度Rz40-75μm；混凝土基材含水率<6%，pH<10；旧涂层需清除松脱部分并拉毛。处理后4小时内完成底漆涂装。具体请参考施工指南。

膨胀型防火涂料施工后多久可以使用/投入使用？

膨胀型防火涂料施工后的固化时间取决于产品类型和环境条件。通常：表干1-4小时（23°C），实干≤24小时（23°C），完全固化7天（23°C）。地坪类24小时后可行人，72小时可轻度使用。防火涂料需完全干燥后达到设计耐火极限。低温或高湿环境会延长固化时间。

膨胀型防火涂料出现质量问题（如起泡、脱落、变色）怎么办？

施工质量问题通常由以下原因导致：①基材处理不当（油污/锈蚀/含水率高）②施工环境不达标（低温/高湿/露点）③涂料混合比例错误或超使用期④涂层厚度不达标⑤覆涂间隔不当。如遇质量问题，请拍照记录缺陷部位并联系客信新材料技术部0757-88793275进行现场分析。

Intumescent fire retardant coating | KF-FR100 | Kexin New Materials

Name: Intumescent fire retardant coating | KF-FR100 | Kexin New Materials | KeXin New Material
Brand: Kexin New Materials
Availability: InStock

Fire-resistive / intumescent coatings series · Complete application process flow

Product No.: KF-FR100 Standard: GB 14907 | GB 28375 | GB 12441 | GA 98 Version: V2.0 Date: 2026-06-21

📥 Download construction guide PDF

I. Pre-application preparation — Substrate inspection and treatment

1Substrate inspection and preparation standard

Preparation standard:Abrasive-blast steel to grade Sa2.0–2.5 (ISO 8501-1)

Roughness requirement:per product requirements

Cleanliness requirement:Oil-free、No corrosion

Primer application:必须先Coating Application相容的Rust-ProofPrimer

2Paint preparation and mixing

Mixing method:Stir thoroughly with a power agitator until uniform and free of sediment.

Pot life:2K/Two-Component需在规定Time内用完

Thinning：Add a small amount of clean water (waterborne) or the dedicated thinner (solventborne) as required.

3Environmental condition check

Application temperature:5-35°C

Relative humidity:Relative humidity ≤85%

drying：Apply the next coat only after each coat has dried through.

II. Application procedure — Selection of coating method

Application method	Process parameters	Applicable scenarios
trowel application	—	厚涂型Steel structure fire-retardant coating
Spraying	Funnel-feed (hopper) spray gun, pressure 0.4–0.6 MPa	Large-area application
Roller Coating	—	薄涂型/Decorative-type fire protection涂料

Film ThicknessControl:Apply in multiple coats, each coat built up to the thickness required by the product. Thick-film type: ≤ 8 mm per coat; thin-film type: ≤ 0.5 mm per coat. Build up to the design thickness.

4. Safety and environmental requirements

⚠ PPE required: dust mask + safety goggles + gloves + safety shoes

⚠ 高空作业系Safety带

⚠ Water-BasedProductsSecurity较好，Solvent type需Ventilation

5. Quality inspection and acceptance criteria

Inspection items	Inspection method	Acceptance criteria
Dry film thickness	Coating thickness gauge	Complies with design values，no negative tolerance
Bond strength	Pull-off test	≥0.15MPa
Appearance	Visual	No cracking, hollowing or delamination
FireproofPerformance	Fire-resistance ratingtest	CompliesDesignFire-resistance rating(h)

Prepared on the basis of:GB 14907 | GB 28375 | GB 12441 | GA 98 and relevant industry standards.
Important statement:This construction guide is a recommended reference document. Actual construction parameters should be adjusted based on site conditions, environmental circumstances, and coating system requirements. For special working conditions or construction difficulties, please contact the Kexin New Materials Technical Department for professional support.
Technical support:0757-88793275 | www.psste.com | Shunde District, Foshan City, Guangdong Province

Intumescent fire retardant coating | KF-FR100 | Kexin New Materials

1Substrate inspection and preparation standard

2Paint preparation and mixing

3Environmental condition check

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