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。

Top-tier Weather Resistance · First Choice for Marine Engineering

PolysiloxaneTopcoat

Name: Polysiloxane Topcoat KF-CH100 | KeXin New Material
Brand: Kexin New Materials
Availability: InStock

KF-CH100 Polysiloxane Topcoat

KF-CH100 polysiloxane topcoat is based on inorganic polysiloxane resin. The coating achieves QUV >5000h with gloss retention >80%, far exceeding polyurethane (2000h) and fluorocarbon (3000h). It combines the ultra-weather resistance of inorganic materials with the flexibility of organic materials. Widely used as a top-tier weather-resistant topcoat for offshore platforms/cross-sea bridges/chemical equipment requiring over 25 years of protection.

Request a quote now View technical data

>5000h

QUV gloss retention >80%

>25 years

Design service life

聚硅氧烷

Inorganic-organic hybrid

>90GU

High Gloss

Flexural Flexibility

Resistant酸碱

Chemical resistance

25kg

Standard packaging

SourceFactory

Offshore Projects

SourceFactory

Factory-direct quality

Product Overview

ProductsOverview

Polysiloxane topcoat is a professional coating product developed by KeXin New Material for the automotive coating industry. It uses imported resins and high-durability pigments, with precise color matching and excellent application performance. Widely used in automotive OEM production lines and aftermarket repair spraying.

The products meet the standards of OEMs and the needs of the automotive aftermarket repair market, with a gloss level of over 95GU and no significant discoloration after 2000 hours of QUV weathering testing. A complete color matching system and technical support are provided.

Why choose polysiloxane topcoat?

✓

Accurate color matching · Original factory fitComputer color grading DeltaE<0.5

✓

Gloss > 95GU · Mirror finishHDI curing agent does not yellow, QUV2000h

✓

On-site engineer guidance——Free on-site service in the Pearl River Delta region, remote technical support elsewhere

✓

Fast dispatch within 48 hours——Standard products well stocked; custom orders in 3-7 working days

✓

Complete coating system solutions——Primer / midcoat / topcoat systems designed as a matched set, one-stop procurement

✓

RoHS / REACH environmental compliance——Tested by third-party laboratories SGS/CTI, exported to 50+ countries

Product highlights

CoreAdvantages

Inorganic-organic hybrid technology

The Si-O-Si bond in the polysiloxane backbone has the same bond energy of 452kJ/mol as quartz/glass. Organic side chains (-CH3/-C6H5) provide flexibility. It combines the ultra-weather resistance of inorganic materials (>5000h QUV) with the flexibility of organic materials (0T bending). It is a new generation of high-performance topcoat between inorganic ceramics and organic polymers.

Verified on offshore platforms and cross-sea bridges

Norwegian North Sea offshore platforms (Statfjord/Gullfaks) polysiloxane topcoat >25 years weathering verification. Application of polysiloxane topcoat on China's Hong Kong-Zhuhai-Macao Bridge/Hangzhou Bay Bridge. The top-tier topcoat system recognized by NORSOK M-501 Norwegian offshore standard.

Isocyanate-free · environmentally friendly and safe

The curing mechanism of polysiloxane is silane hydrolysis-condensation (moisture curing), without using isocyanates. Friendly to construction personnel and the environment. Low VOC (<250g/L)Complies最严格Environmental compliance法规。可在密闭空间和敏感Environment(Food厂/水厂)Safe application。

Professional coating technology support services

Kexin has an experienced coatings R&D and applications team that supports the whole process - substrate analysis, coating selection, optimisation of process parameters and on-site application guidance. Our engineers commission the coating parameters on your own production line so that finish quality and output are both optimised.

Eco-compliant green manufacturing system

All products are RoHS/REACH compliant and their VOC content meets national environmental standards. Waterborne and high-solids low-VOC formulations are continuously refined to keep pace with ever stricter environmental requirements. Environmental performance test reports issued by third-party authorities such as SGS and CTI are available on request.

Complete quality control and batch traceability

A quality-control system covering the whole process, from incoming raw materials to finished-goods dispatch. Every batch undergoes rigorous physico-chemical testing and simulated application trials. Batch numbers are traceable end to end, so raw-material sources and production data can be retrieved. Each shipment is released with a batch test report and a product warranty, so customers can use it with confidence.

Technical Parameters

TechnicalSpecifications

Basic parameters

Product typeTwo-component polysiloxane topcoat

Curing mechanismMoisture curing (silane hydrolysis-condensation)

VOC content<250g/L

Recommended DFT100-150μm(2道)

Theoretical spreading rate5-7m²/kg

Tack-free / hard-dry2h/12h

Suitable substratesEpoxy intermediate coat/inorganic zinc primer

Packaging Specs25kg/set

Performance

QUV aging (5000h)Gloss retention >80%

Salt Spray Resistance(5000h)No blistering or rusting

Adhesion (pull-off method)>5MPa

Bending (0T)No cracks

Resistant to 10% HCl (30 days)No change

Resistant to 10% NaOH (30 days)No change

Resistant to Skydrol(30d)No softening

VOC content<250g/L

The technical parameters above are taken from test data of the Kexin New Materials laboratory (ISO 17025 accredited); actual values may differ slightly depending on application conditions and substrate. Please contact technical support to obtain a current COA test report.

FAQ

Frequently AskedFAQ

Which substrates and scenarios does it suit?+

Suitable for many common substrates, including steel, concrete, wood and plastics. Widely used in industrial manufacturing, architectural decoration, automotive and transport, furniture and home furnishings. For professional selection advice, call 400-901-0757.

What is the application method?+

Apply by conventional spray, brush or roller. Substrate must be clean, dry and grease-free. Ambient temperature 5-35°C, relative humidity <85% 为BestApplicationConditions。SpecificParameters — see Products TDS Technical Data Sheet。

Which primer or topcoat completes the system?+

We recommend using a matching primer and topcoat from the same Kexin series to secure system compatibility and best performance. A Kexin engineer can design a complete primer-midcoat-topcoat system for your specific service conditions, free of charge.

How to get samples and a quote?+

Free samples of standard products are provided (freight at the customer's cost), supplied with TDS and MSDS documentation. For bulk purchases please contact 400-901-0757 or 13531350189. Sample quantity from 1 kg; bulk orders from 20 kg.

How do I pick the right grade for my operating conditions?+

Choosing a coating product requires considering the substrate type, the service environment (temperature / humidity / chemical media), the required corrosion protection class (ISO 12944 C1-C5M), the application conditions and the budget. We recommend contacting our technical engineer on 400-901-0757 for professional selection advice; free trial spraying and test verification are supported.

What is the MOQ and lead time?+

Samples from 1 kg; regular products from 20 kg per batch. Stock items ship within 48 hours, made-to-order products in 3-7 working days. Door delivery can be arranged within the Pearl River Delta region.

Application guide

ApplicationProcess

Surface preparation

Substrate must be thoroughly cleaned of oil and rust. Blast steel to Sa2.5. Prepare the surface per the product requirements. Ambient 5-40°C relative humidity<85%。

Primer / pre-treatment

Select a compatible primer or pretreatment according to the substrate and coating system. Mix strictly in the specified ratio and control the film thickness. Proceed to the next step after the primer dries.

Main-coat application

Apply the main coat per the process requirements. Strictly control parameters such as film thickness and temperature/humidity. Ensure a uniform coating free of sagging and pinholes.

Curing process

Oven-cure per the product requirements, or air-dry at room temperature. Keep the oven temperature uniform and ramp it up gradually. For room-temperature-cure grades, ensure ventilation and humidity control.

Inspection & acceptance

Test all parameters including film thickness, adhesion and gloss. Once everything passes, issue the test report and quality certificate, then pack and ship in a clean room.

Application Scenarios