200-600℃

cat silikon tahan suhu tinggi Silicone Heat-Resistant

One-component silicone heat-resistant coating · Si-O bond 452kJ/mol · Long-term stable at 600℃

cat silikon tahan suhu tinggi（Silicone Heat-Resistant）ialah primer antipenghakisan dua komponen (2K) berprestasi tinggi, di mana resin epoksi yang mengeras dengan poliamida bertindak sebagai bahan pembentuk filem dan serbuk zink ultra halus (kandungan dalam filem kering ≥70%) sebagai pigmen antipenghakisan utama.salutan memberikan perlindungan hakisan aktif melalui mekanisme perlindungan katodik anod korban zink pada keluli; walaupun filem kering rosak setempat, serbuk zink di sekelilingnya terus memberikan perlindungan elektrokimia kepada keluli terdedah.CompliesHG/T 3668-2020《cat silikon tahan suhu tinggi》jenis 2; apabila digabung dengan salutan tengah epoksi MIO (oksida besi mika) dan salutan akhir poliuretana / fluorokarbon, sistem itu menahan kabus garam neutral ≥1000h, memenuhi keperluan kelas persekitaran hakisan tinggi C4-C5 ISO 12944.digunakan secara meluas sebagai primer antipenghakisan dalam projek besar seperti jambatan rentas laut, anjakan petroleum luar pesisir, tangki penyimpanan petrokimia, menara penghantaran elektrik, menara turbin angin, và bangunan struktur keluli bersaiz besar.

Get QuoteLihat butiran produk
≥70%
kandungan serbuk zink dalam filem kering
1000h+
Ketahanan sistem kepada kabus garam
≥6MPa
lekatan cara tarik
≥60%
J pepejal isipadu
HG/T3668
Standard pelaksanaan produk
Sa2.5
Gred rawatan substrat
5~40°C
Suhu persekitaran aplikasi
2K/Two-Component10:1
Nisbah pengadunan
ISO12944
C4-C5 corrosion level
Product Overview

ProductsGambaran keseluruhan

Gambaran keseluruhan produk: untuk siapa? masalah apa yang diselesaikan?

Silicone heat-resistant paint is a heavy-duty anti-corrosion primer designed for steel structures requiring long-term anti-corrosion protection of over 15 years in C4-C5 highly corrosive environments.The core problem it solves is: ordinary anti-rust paint fails within 3-5 years in harsh environments such as coastal areas, chemical atmospheres, and high humidity, while silicone heat-resistant paint, through the dual mechanism of "cathodic protection + barrier protection," can provide 15-25 years of long-term protection when combined with intermediate coat and topcoat—significantly reducing life-cycle maintenance costs.

Definisi produk

Silicone Heat-Resistant, Chinese standard number HG/T 3668-2020, is a two-component (2K) ambient-temperature crosslinking curing anti-corrosion primer using epoxy resin (bisphenol A type, CAS 25068-38-6) and polyamide curing agent (CAS 68410-23-1) as film-forming substances, ultrafine spherical zinc powder (CAS 7440-66-6, particle size 3-8μm, mass fraction in dry film ≥70%) as anti-rust pigment, and xylene/n-butanol as solvent system.

Mekanisme perlindungan kakisan:High-content zinc powder particles in the coating form continuous conductive pathways between themselves and with the steel substrate. Since the standard electrode potential of zinc (-0.76V vs SHE) is lower than that of iron (-0.44V), zinc acts as the anode in corrosion microcells and preferentially undergoes oxidation (Zn → Zn²⁺ + 2e⁻). The released electrons flow through the conductive network to the steel surface, cathodically polarizing the steel below its immune potential—this is known as "sacrificial anode cathodic protection." Meanwhile, the corrosion products of zinc (ZnO, Zn(OH)₂, basic zinc carbonate, etc.) gradually fill the coating pores, forming a dense secondary barrier layer—the "corrosion product self-healing effect."

Data prestasi penting:

  • The dry film zinc powder content is ≥70% (compliant with HG/T 3668-2020 Category 2).
  • Volume solids content ≥60% (ISO 3233:1998)
  • Pull-off adhesion ≥6 MPa (ISO 4624:2016, test doll diameter 20mm)
  • Single coating resistance to neutral salt spray (NSS) ≥400h (ISO 9227:2022, rust width at the crisscrossing ≤2mm)
  • The complete system (epoxy zinc-rich 80μm + epoxy micaceous iron oxide intermediate coat 150μm + polyurethane topcoat 80μm) has an NSS resistance of ≥1000h.
  • Mixed application period: 4-8 hours (23°C, main agent: curing agent = 10:1 w/w)

Substrat sesuai dan had:Applicable to carbon steel, low-alloy steel, and cast iron substrates blasted to Sa2.5 (ISO 8501-1:2007). Not recommended for direct application on galvanized steel (the passivation film on the zinc surface will block the conductive path—sweep blasting pretreatment or an epoxy primer transition layer is advised), stainless steel (the surface passivation film must be removed first), or aluminum alloy (risk of galvanic corrosion—the potential difference between zinc and aluminum is too large). Application temperature limits: standard type 5–40°C (below 5°C, the epoxy-amine crosslinking reaction rate is extremely low, resulting in incomplete coating curing).

Kedudukan industri dan aplikasi:cat silikon tahan suhu tinggiis one of the most widely used primer types in global heavy-duty anticorrosive coating systems (ISO 12944-5:2019 systems A2.08/A3.08/A4.08, etc.), forming a classic triple-protection system with epoxy MIO intermediate coat and PU/fluorocarbon/polysiloxane topcoat. Typical applications include: Akashi Kaikyo Bridge Japan (opened 1998, 100-year design life), Hong Kong-Zhuhai-Macao Bridge (opened 2018, 500,000m² steel box girders), North Sea offshore oil platforms (NORSOK M-501 system certification), etc. According to Grand View Research, the global zinc-rich primer market was approximately USD 2.8 billion in 2023, with Asia-Pacific accounting for 48% share.

Features

ProductsFeatures

石化高温管道

1. Cathodic protection (sacrificial anode) mechanism

The dry film contains ≥70% zinc powder forming a continuous conductive network. The standard electrode potential of zinc (-0.76V) is lower than that of iron (-0.44V). When corrosion occurs, zinc preferentially oxidizes (Zn→Zn²⁺+2e⁻), releasing electrons to cathodically polarize the steel to its immunity potential—even if the coating has 3-5mm damage, the surrounding zinc powder can still provide continuous electrochemical protection for the exposed steel, which makes the anti-corrosion performance of silicone heat-resistant paint far exceed that of ordinary anti-rust primers that rely solely on physical barrier.

发电厂锅炉外壁

2. Superior corrosion resistance and durability

Single coating NSS≥400h (HG/T 3668 Type 2), system NSS≥1000h when combined with epoxy micaceous iron oxide intermediate coat + polyurethane topcoat. Designed service life of 15-25 years under ISO 12944-2 C5-M extremely high corrosion environment (marine splash zone). The Akashi Kaikyo Bridge in Japan adopted silicone heat-resistant paint system in 1998, and the coating remains intact after more than 25 years—actual service life far exceeds the design value.

汽车排气管涂装

3. Excellent compatibility

It has excellent inter-coat adhesion (pull-off method ≥5MPa) with epoxy micaceous iron oxide intermediate coat (MIO barrier layer), polyurethane topcoat (weather-resistant decorative layer), fluorocarbon topcoat (ultra-weather-resistant ≥25 years), and polysiloxane topcoat (high weather resistance + high chemical resistance). Silicone heat-resistant paint + epoxy micaceous iron oxide intermediate coat + topcoat is the most classic three-coat heavy-duty anti-corrosion system in ISO 12944-5—primer provides cathodic protection, intermediate coat provides thickness and physical barrier, topcoat provides weather resistance and decoration.

工业烘箱内壁

4. Wide adaptability to construction

Supports airless spray (nozzle 0.43–0.53 mm, 15–25 MPa), air spray, and brush/roller application (for small-area touch-ups). Single-pass dry film thickness: 60–80 μm. Mixing ratio: 10:1 (w/w). Pot life: 4–8 h (23°C). Wide temperature range for application (5–40°C); low-temperature formulation can be applied down to –5°C. Continuous stirring is required during spraying to prevent zinc powder sedimentation—use of a pressure pot with a pneumatic agitator is recommended to ensure coating uniformity.

烟囱外壁防腐

5. Shop Primer Solderability

Specialized formulation (dry film 15-25μm) can be used as a shop primer—after application in the steel structure prefabrication plant, the steel remains suitable for welding and cutting. Welding fumes comply with occupational exposure limits (GBZ 2.1-2019), and the pass rate of X-ray inspection of welds is not affected. Suitable for automated spray painting on steel structure production lines—parts can be handled and stacked within 3-5 minutes after spraying. Note: Only the specialized shop primer formulation is weldable—the standard type with a dry film thickness of 60-80μm is not suitable for welding.

炼油厂反应器

6. Environmental Compliance · Global Standards

Complies with HG/T 3668-2020 (China) Standard Class 2, ISO 12944-5:2019 system numbers A2.08/A3.08/A4.08, NORSOK M-501:2022 (Norwegian Petroleum Industry) System 1, SSPC Paint 20 (USA) Zinc-rich Primer Type II (≥77% zinc powder). VOCs<420g/L（GB 30981-2020），可通过ROHS 2011/65/EU和REACH (EC) 1907/2006ComplianceTesting。Products碳足迹约2.8kg CO₂e/kg（摇篮到大门，SimaPro 9.5kira)——低于Primers anorganik kaya zink（3.5kg CO₂e/kg）。

Technical Specifications

TeknikParameter

Parameter fizikokimia

Jenis produkSalutan epoksi poliamida/serbuk zink dua komponen (2K EP/Zn)
kandungan serbuk zink dalam filem kering≥70% (HG/T 3668-2020 Category 2)
J pepejal isipadu60±3%（ISO 3233:1998）
Kandungan pepejal mengikut jisim85±3%（GB/T 1725-2007）
Ketumpatan (selepas dicampur)2.10-2.30 g/cm³（20°C）
Nisbah campuran (berat)Main agent: curing agent = 10:1
Hayat bancuhan (pot life)4-8h（23°C）/ 2h（35°C）
Ketebalan filem kering (DFT) disyorkan60-80μm / channel
Kadar liputan teori0.17-0.22 kg/m²（75μm DFT）
Kandungan VOC<420 g/L（GB 30981-2020）
Packaging Specs30kg base agent + 3kg hardener kit

Pengeringan dan prestasi

Masa kering permukaan≤1h (23°C, GB/T 1728-2020 Method B)
Masa kering menyeluruh≤24h (23°C, GB/T 1728-2020 Method A)
Semburan penuh7 days (23°C, Tg stable by DSC method)
Selang masa salut semula minimum8h（23°C）
Selang masa salut semula maksimum7 days (23°C; sand removal is required if the expiration date is exceeded)
lekatan cara tarik≥6 MPa（ISO 4624:2016，dolly Ø20mm）
Lekatan kaedah potongan silang≤1 level (ISO 2409:2020, spacing 1mm)
Rintangan hentakan≥50 kg·cm（GB/T 1732-2020）
ketahanan kabus garam neutral (NSS)Single coating ≥400h / Complete system ≥1000h (ISO 9227:2022)
Suhu perkhidmatan selanjar-20°C ~ 150°C
Asas parameter teknikal
• March 2024, National Coatings Quality Inspection and Testing Center Test Report (No.: NTC-2024-0315-ZR)
· HG/T 3668-2020 "Silicone Heat-Resistant Paint" Type 2 specifications
The data in this table are typical values under standard laboratory conditions (23±2°C, 50±5%RH). Actual values may vary slightly depending on the substrate condition, construction process, and environmental conditions. Please contact technical support to obtain the batch COA (Certificate of Appointment).
Application Process

ApplicationProcess

1

Penyediaan permukaan

Sandblast to Sa2.5 (ISO 8501-1:2007), roughness Rz 40-75μm. Manual rust removal ≥ St3. Grease must be removed with SSPC-SP1 solvent. Primer application (RH) must be completed within 4 hours after sandblasting.<50%可延至8h）。禁忌：雨天/雾天/Suhu substrat低于露点3°C时禁止Application。

2

Pencampuran salutan

Stir the main agent for 3-5 minutes until the zinc powder is completely and evenly dispersed. Add the curing agent at a ratio of 10:1 (w/w) and continue stirring for 3-5 minutes. Let it stand for 15-30 minutes (23°C) to mature. Continuously stir during application to prevent zinc powder from settling—a pneumatic mixer is recommended. The mixed usable period is 4-8 hours (23°C). Do not dilute and use materials that have gelled beyond this period.

3

Penyapuan primer

Airless spraying (recommended): Nozzle 0.43-0.53mm/0.017-0.021", pressure 15-25MPa. Air spraying: Nozzle 1.5-2.0mm, pressure 0.3-0.5MPa. Brush/roller coating is only suitable for small-area pre-coating and repair. Single-coat DFT 60-80μm. Pre-coat welds, free edges, etc.

4

Pengeringan dan salutan semula

Surface dry ≤ 1h (23°C), hard dry ≤ 24h. Minimum recoating interval 8h (23°C). Maximum recoating interval 7d—exceeding this interval requires sandblasting (low pressure 0.2-0.3MPa, non-metallic abrasive) to remove surface zinc salts (basic zinc carbonate). Matching: Epoxy micaceous iron oxide intermediate coat 100-150μm → Polyurethane/fluorocarbon topcoat 50-80μm × 2.

5

Inspection and Acceptance

DFT measurement (ISO 2808:2019, SSPC-PA2): 80% of measuring points ≥ specified value, no measuring points<80%规定值。PelekatanTesting（Ujian tarik keluar ISO 4624或ISO 2409Kaedah potongan silang）。pengesanan liang jarum（Kaedah span basah，67.5V/90V）。pemeriksaan visual：无Melendut/漏涂/起泡/kawah/Serbuk zink不seragam。

Applications

AplikasiField/Area

高温漆喷涂施工

Petrochemical high-temperature pipelines

Silver aluminum powder heat-resistant coating, thermal insulation and anti-corrosion for pipeline equipment

管道法兰和阀门

Power plant boiler outer walls

Large boiler equipment, black heat-resistant coating

焚烧炉外壁

Automotive Exhaust Pipe Coating

Silver heat-resistant coating, automotive exhaust system parts

船舶发动机排气管

Industrial Oven Interior Walls

Silver coating protection for the interior of high-temperature equipment

高温漆生产线

Chimney Exterior Anti-Corrosion

Tall chimney structures, silver heat-resistant anti-corrosion coating

集中供热管道

Refinery Reactors

Large chemical equipment, silver high-temperature protective coating

风电塔筒

High-Temperature Paint Spraying Application

Spray gun applying silver coating, worker protective equipment

船舶与海洋工程

Pipe Flanges and Valves

Heat-resistant coating protection for high-temperature pipe connectors

管道防腐

Incinerator outer wall

Industrial incineration equipment, silver high-temperature resistant protection

矿山与工程机械

Marine engine exhaust pipe

Heat-resistant coating for high-temperature equipment in ship engine rooms

化工装置

High-temperature paint production line

Paint bucket filling and packaging, factory production quality inspection

水处理设施

Central heating pipeline

Urban heating network, silver high-temperature resistant coating

FAQ

Sering DitanyaSoalan lazim

The anti-corrosion mechanism of silicone high-temperature resistant paint is based on the electrochemical cathodic protection principle: the high content (≥70%) of zinc powder particles in the coating forms conductive pathways among themselves and conducts with the steel substrate. Since the standard electrode potential of zinc (-0.76V) is more negative than that of iron (-0.44V), zinc oxidizes preferentially when corrosion occurs: Zn→Zn²⁺+2e⁻. The released electrons flow through the conductive network to the steel surface, causing cathodic polarization—effective protection is achieved when the potential drops below -0.85V (vs Cu/CuSO₄). If the zinc powder content is insufficient (<60%），Serbuk zink颗粒被resin epoksi绝缘包裹无法形成连续导电通路——perlindungan katod失效——Coating仅剩物理屏蔽功能，Anticorrosive寿命大幅缩短。这就是HG/T 3668standard严格KeperluanKandungan zinc debu的Punca：第1类≥80%（高Anticorrosive），第2类≥70%（standardAnti-Kakisan Tugas Berat），Kelas 3≥60%（一般Anticorrosive）。
Tidak boleh digunakan bersendirian.Three reasons: (1) A single layer of silicone high-temperature resistant paint exposed to acidic (acid rain pH<5.6）或碱性（Konkrit渗出碱液）Environment中，Serbuk zink会被Quick化学消耗（反应速率较中性Environment快3-10倍），丧失perlindungan katod能力。Salut antara epoksi MIO（MIOBahan pengisi lamelar层叠排列形成"Kesan labirin (laluan berliku)"）Provides物理屏蔽层——PerlindunganSerbuk zink不过早消耗。(2)resin epoksi含芳香醚键——紫外光（290-400nm）照射下3-6bulan即开始光氧化降解——粉化/变色/失光。Polyurethane/fluorocarbon topcoat（含UV吸收剂和HALS光稳定剂）ProvidesPerlindungan cuaca。(3)Sistem salingan serasi总DFT更厚（≥280μm）——Anticorrosive等级更高。ISO 12944-5disyorkan的Anti-Kakisan Tugas Beratserasi：cat silikon tahan suhu tinggi60-80μm + Salut antara epoksi MIO100-150μm + Salap atas poliuretana50-80μm×2。
According to HG/T 3668-2020, three types of zinc content are selected: Type 1 (≥80%) — suitable for C5/CX extremely corrosive environments (offshore splash zones, tidal zones, chemical plant acid mist areas) or major projects with a design life >25 years. It offers the highest cathodic protection efficiency, but excessive zinc powder increases internal stress and reduces flexibility (flexibility ≥3mm vs. Type 2's ≥2mm), and has the highest unit price. Type 2 (≥70%) — a general heavy-duty anti-corrosion primer suitable for C4-C5 environments (coastal industrial areas, sea-crossing bridges, petrochemical storage tanks), offering the best cost-performance ratio — an optimal balance between anti-corrosion performance and mechanical properties. Recommended for most industrial projects. Type 3 (≥60%) — suitable for C3-C4 environments (urban atmosphere, ordinary industrial plants) with general anti-corrosion requirements. Can be selected if the budget is limited and the environmental corrosion level is low. Selection suggestion: When in doubt, choose Type 2 (70%) — the safest universal option.
Zinc powder has a high density (7.14 g/cm³) and tends to settle easily in low-viscosity epoxy resin solutions. Solutions: (1) After opening the container, thoroughly stir with an electric/pneumatic stirrer for ≥5 minutes—completely lift the zinc powder from the bottom until no sediment remains. (2) After adding the hardener, continue stirring for 3-5 minutes until the mixture has a uniform color. (3) Maintain continuous low-speed stirring throughout the application process—a pressure tank with a pneumatic stirrer (rotation speed 30-60 rpm) is recommended to prevent zinc powder from re-settling during spraying, which could cause inconsistent zinc content between the initial and final spray. (4) Paint that has settled and hardened into lumps—do not forcibly stir for use (the zinc powder has separated from the resin and may form lumps, leading to pinholes, uneven zinc distribution, and reduced adhesion after spraying). Paint that has exceeded its mixed pot life and shows gelation—must be discarded. It is recommended to prepare the paint as needed (estimate usage within 2 hours), in small, multiple batches.
cat silikon tahan suhu tinggiWhen exposed to air, surface zinc powder reacts with CO₂ and H₂O to form basic zinc carbonate ("white rust"). After 7 days (23°C, 50%RH), the following treatment is required: (1) Visual inspection — white powdery zinc salts must be removed by sweep blasting using low pressure (0.2-0.3MPa) non-metallic abrasive (garnet/alumina) to remove the zinc salt layer and create 20-30μm roughness. (2) For coatings within 6 months without visible zinc salts — light sanding (180-240 grit hand sanding) is sufficient. (3) If the coating shows extensive chalking/rusting/peeling — complete blast removal and reapplication is required. Prevention: Complete intermediate coat application within the minimum recoat interval (8-24h) when the primer surface still has active amine groups (incompletely crosslinked), achieving optimal intercoat adhesion without sanding.
Perbezaan teras: bahan pembentuk filem berbeza.Epoxy zinc-rich — organic epoxy resin + polyamide curing agent; inorganic zinc-rich — inorganic ethyl silicate/lithium silicate hydrolysis condensation. Selection comparison: (1) Anti-corrosion performance: Inorganic zinc-rich primer (zinc content ≥85%) offers higher cathodic protection efficiency, certified under NORSOK M-501 and SSPC Paint 20 Type I (inorganic) — Type II (organic). Both can achieve equivalent anti-corrosion grades, but inorganic is slightly superior. (2) Application tolerance: Epoxy zinc-rich >> inorganic zinc-rich. Epoxy can be applied at 5–40°C/RH<85%宽KeadaanApplication；无机对RHKeperluan苛刻——RH需50-90%（Etil silikat水解需要水分），Low temperature (<5°C）和低湿（<40%）均无法NormalPengerasan——Tetingkap aplikasi窄。(3)Inter-coat Adhesion：Epoksi kaya zink+Salut antara epoksi MIO的层间结合力（>5 MPa) is superior to inorganic zinc-rich + epoxy intermediate paint (possibly due to the porous nature of the inorganic coating increasing the contact area, but also potentially leading to insufficient adhesion due to surface chalking—requiring sweep blasting). (4) Cost: Epoxy zinc-rich is approximately 0.7–0.8 times the cost of inorganic zinc-rich. Selection recommendations: For conventional heavy-duty anti-corrosion projects, choose epoxy zinc-rich (easy application + high cost-effectiveness); for extreme marine environments (splash zone/tidal zone) or top-tier projects with a design life of ≥30 years—choose inorganic zinc-rich + sealer + epoxy intermediate coat + polysiloxane topcoat.
Downloads

Muat turunpusat

PDF

TDS Product Technical Specifications

Technical Data Sheet
Compliant with HG/T 3668-2020 standard

Download document ➔
PDF

MSDS (Material Safety Data Sheet)

Material Safety Data Sheet
16 Chapters · GB/T 16483-2008

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PDF

Color Card (Product Color Card)

Color Card
Warna standard kelabu keluli / merah besi

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PDF

Panduan aplikasi

Application Guide
Complete construction guidance + defect countermeasures

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Case Studies

projekKes

中石化镇海炼化高温管道有机硅涂料
Sinopec · 2017

Sinopec Zhenhai Refining & Chemical high-temperature pipeline silicone coating

ClientSinopec Zhenhai Refining & Chemical Branch
SubstratCarbon steel high-temperature pipeline Sa2.5 grade operating temperature 350°C
SystemSilicone heat-resistant primer + topcoat silver pink each 50μm
PensijilanHG/T 4564-2013 Silicone heat-resistant coatings standard
AreaApproximately 92,000 m² (catalytic cracking/hydrotreating unit pipelines)
jangka hayat reka bentuk10 years（350°C连续+kitaran terma）
华能玉环电厂锅炉外壁有机硅耐高温涂装
Huaneng · 2019

Huaneng Yuhuan Power Plant boiler outer wall silicone heat-resistant coating

ClientHuaneng Power International, Inc. Yuhuan Power Plant
SubstratBoiler steel structure/outer wall, blast cleaning to Sa2.5 grade
SystemSilicone high-temperature resistant primer + topcoat, black, 40μm each
PensijilanPassed 400°C high-temperature resistance test + GB/T 1735
AreaApproximately 65,000 m² (4×1000MW ultra-supercritical units)
jangka hayat reka bentuk10 years（400°C连续运行+SO₂酸性气氛）
上汽集团排气管耐高温漆涂装线
SAIC · 2020

SAIC Motor exhaust pipe high-temperature coating line

ClientSAIC Motor Corporation Limited
SubstratAutomotive exhaust pipe/muffler, 409/439 stainless steel
SystemSilicone high-temperature resistant silver paint, single coat 20-30μm
PensijilanLulus kitaran terma 600°C + ujian kabus garam lulus
AreaApproximately 500,000 pieces/year (exhaust pipes/mufflers/three-way catalytic converter shells)
jangka hayat reka bentukSame lifespan as the vehicle (500-800°C exhaust temperature)
中海油惠州石化延迟焦化装置耐高温防腐
CNOOC · 2018

CNOOC Huizhou Petrochemical Delayed Coking Unit High-Temperature Corrosion Protection

ClientCNOOC Huizhou Petrochemical Co., Ltd.
SubstratCoke drum/heating furnace outer wall Sa2.5 grade
SystemSilicone high-temperature aluminum powder paint primer + topcoat each 50μm
PensijilanResistant to 500°C + NACE TM-0404 high-temperature cycling
AreaApproximately 38,000 m² (coking unit + heating furnace + piping)
jangka hayat reka bentuk8 years (480°C + sulfur-containing and coke particle erosion)

Silicone high-temperature resistant paint·Terus dari kilang

Free sample testing · Customized technical solutions · On-site construction guidance · ISO 9001 certified factory · 48-hour rapid response

Ujian sampel percuma
Penyelesaian teknikal tersuai
Penghantaran pantas dalam 48 jam
ISO 9001 certification
Pertanyaan Sekarang · Dapatkan Sebut HargaMuat turun data teknikal

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