What are the common applications for this product?

It is widely used in insulators, electrical base, shell, motor, switch baseplate, circuit board manufacturing, relays, switches, and communication systems.

What is the material composition of the FR-4 laminate?

It is created from alkali-free glass cloth impregnated with epoxy resin by hot processing.

High Quality Unclad Laminate Fr4 with Flame Retardant

Name: High Quality Unclad Laminate Fr4 with Flame Retardant
Brand: Haikou Haojinghui Industrial Co., Ltd.
SKU: 1976264292

Hainan, ChinaHaikou Haojinghui Industrial Co., Ltd.

US$3.30-4.60

500 kg

Product profile

Application

Insulators, Electrical Base, Shell, Motor, Switch Baseplate

Color

Green

Material

Fiberglass

Model NO.

FR4

Maximum Voltage

20KV~100KV

Thermal Rating

B 130

Type

Insulation Sheet

Chemistry

Inorganic Insulation

Classification

Inorganic Insulation Material

Certification

ISO9001

Brand

Hjh

Transport Package

Pallet

Specification

Metric Ton

Trademark

HJH

Origin

China

HS Code

3920999090

Production Capacity

50ton/Month

Key features

Flame Retardant V-0: High resistance to flame with UL94 V-0 rating for safety.

High Dielectric Strength: Excellent electrical insulation with up to 35 KV breakdown voltage.

Low Water Absorption: Minimal water absorption of 18 mg in 24 hours for humidity resistance.

Wide Size Options: Available in 1020x1220mm, 1220x2040mm, and 1230x2470mm.

ISO9001 Certified: Manufactured under ISO9001 certification for quality assurance.

Cold Workable: Can be worked while cold up to 3mm thickness.

Company profile

Haikou Haojinghui Industrial Co., Ltd.

Hainan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2013-07-01Nearest Port: shekou, guangzhouAverage Response Time: ≤4.62hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DDP, FCA, EXW

AI-Powered supplier vetting

SummaryHaikou Haojinghui Industrial Co., Ltd. is identified as a China-based limited company operating as both a trading company and manufacturer/factory, with offices in Hainan and stated factory operations in Suzhou, Jiangsu. It focuses on electrical insulating materials, including polyimide film, adhesive tape, insulation paper, pressboard, laminate sheets, FR4/G10 materials, and related products. The supplier reports ISO 9001 certification, six production lines, 6–10 years of R&D engineer experience, and fewer than five quality-control staff. It has exported since 2013, with exports representing 71%–90% of total sales. The available records show limited transaction evidence involving one buyer in Mexico during 2025. Evidence is insufficient to establish after-sales service, financial credibility, or customization capability. Production capability is supported by stated facilities and product output information, although some reported production figures appear inconsistent and should be verified.

Supplier typeThe supplier is explicitly described as both a trading company and manufacturer/factory, with a stated focus on manufacturing and exporting electrical insulating materials. Its company description also reports multiple production departments and offices in several Chinese locations.

CertificationsThe supplier explicitly reports holding ISO 9001 certification for its management systems. No additional certifications, scope, issuing body, or validity period is provided.

Production capacityProduction capability is supported by six reported production lines, stated production departments, electrical insulating-material product coverage, and annual productivity information for polyimide film, tape, and adhesive tape. However, the reported output quantities are unusually large and should be verified before relying on them for capacity planning.

Client casesThe supplier reports that exports account for 71%–90% of total sales and that it began exporting in 2013. Trade records identify one buyer in Mexico and four recorded transactions across two 2025 entries, but the evidence is limited and does not establish a broad or independently verified customer portfolio.