Shanghai Solid Industry Co.,Ltd.

What Shanghai Solid Industry Co.,Ltd. does

Shanghai Solid Industry Co.,Ltd., doing business as Allsign (legally Shanghai Allsign International Technology Co., Ltd.), is a Shanghai-based B2B manufacturer and exporter of plastic sheet products, founded in 2014. Its operations center on R&D and production of two core product categories: acrylic sheets (PMMA) in cast, extruded, clear, color, mirror, pattern, bathtub, and furniture variants, and PVC foam boards spanning PVC Celuka, rigid PVC, decorative PVC, SPC, KT foam, and WPC lines. Manufacturing is supported by a 50,000 square meter production base and the company holds ISO 9001, CE, SGS, and RoHS certifications, with B1 and UL94 V-0 flame-rating performance specifications on key SKUs.

The company operates a factory-direct B2B model with MOQ-based wholesale pricing (typically 30-300 pieces depending on product line), custom OEM/ODM processing, and free sample offerings to qualified buyers. Its go-to-market relies on direct sales via its own multilingual websites (English, Arabic, French, Russian, Spanish, Portuguese), broad social media presence, and international trade exhibition participation rather than distributor or reseller networks. End customers include sign makers, advertising agencies, furniture manufacturers, construction firms, bathroom fixture producers, and premium retail display fabricators across 50+ countries in Europe, America, Southeast Asia, and the Middle East, with the company claiming a base of 1,000+ global clients. Pricing is quote-based and confidential, and the business is privately held with no disclosed institutional backing.

Revenue, headcount, ownership structure, and detailed financial metrics are not publicly disclosed, limiting external visibility into scale economics. The entity is registered as a private limited company in Shanghai with offices in Pudong and Baoshan districts, and the commercially claimed '15 years of industry experience' exceeds the 2014 legal founding date, suggesting the underlying factory carries a longer operating history than the current legal entity.

Name

Shanghai Solid Industry Co.,Ltd.

Legal name

Shanghai Allsign International Technology Co., Ltd.

Website

https://allsign-adv.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

1–10 employees

Short description

Allsign is a Shanghai-based B2B manufacturer and exporter of acrylic sheets and PVC foam boards, operating a 50,000 sqm production base and serving 1,000+ clients across 50+ countries in advertising, construction, furniture, and bathroom fixture applications.

Ownership category

akta.pro rank

Product category

Plastic Sheet Manufacturing

NAICS

Plastics Packaging Film and Sheet (including Laminated) Manufacturing (326112)

SIC

Plastics Foam Products (3086), Miscellaneous Plastics Products (3080)

akta.pro primary industry

Custom & Specialty Rigid Plastic Packaging (Decorated, Premium, Unique Shapes) (IMALAAAL)

Keywords

• Acrylic sheet manufacturing
• PVC foam boards
• Advertising materials supply
• Plastic sheet products
• Sign fabrication materials

Headquarters

HQ city

Shanghai

HQ country

China

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Acrylic and PVC Foam Board Sales: Direct product sales of acrylic sheets (PMMA) and PVC foam boards including cast acrylic, extruded acrylic, PVC celuka boards, rigid PVC boards, decorative PVC boards, SPC boards, WPC boards, and KT foam boards. Revenue generated from wholesale bulk orders, custom OEM/ODM processing, and factory direct pricing to global B2B customers.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Shanghai Solid Industry Co.,Ltd. (Allsign) is a B2B manufacturer and wholesale supplier of acrylic sheets (PMMA) and PVC foam boards produced at its 50,000 sqm Shanghai production base. The portfolio spans cast acrylic, extruded acrylic, clear/color/mirror/pattern/bathtub/furniture acrylic sheets, and PVC celuka, rigid PVC, decorative PVC, SPC, KT, and WPC foam boards. Products are sold factory-direct to global enterprise buyers in over 50 countries for advertising signage, construction, furniture, bathroom fixtures, and retail display applications, with OEM/ODM custom processing available.

Product overview

Allsign (Shanghai Allsign International Technology Co., Ltd.) is a professional manufacturer and supplier of advertising materials specializing in R&D and production of Acrylic Sheets (PMMA) and PVC Foam Boards. The product portfolio consists of two core product categories: (1) Acrylic Sheets including Cast Acrylic Sheet, Extruded Acrylic Sheet, Clear Acrylic Sheet, Color Acrylic Sheet, Mirror Acrylic Sheet, Pattern Acrylic Sheet, Bathtub Acrylic Sheet, Furniture Acrylic Sheet, and High-Clarity Acrylic Sheet; and (2) PVC Foam Boards including PVC Celuka Board, Rigid PVC Board, Decorative PVC Board, SPC Board, KT Foam Board, and WPC Board. These products serve advertising signage, construction, furniture manufacturing, bathroom fixtures, retail displays, and exhibition applications. The company operates a 50,000㎡ production base and exports to over 50 countries.

Differentiator

Problem solved

Functional benefit

Products and services

• Acrylic Sheet (PMMA) Acrylic sheets (PMMA) engineered for commercial, industrial, and residential applications, offering durability, clarity, and performance. Includes cast, extruded, clear, color, mirror, pattern, bathtub, and furniture variants for B2B buyers.
• PVC Foam Board Lightweight rigid plastic panel made from PVC resin through foaming and extrusion molding technology, featuring uniform closed-cell foam structure, machinability, waterproof properties, and weather resistance. Available in thicknesses from 1mm to 30mm for B2B buyers.
• Cast Acrylic Sheet Premium acrylic sheet produced by cell cast process (liquid resin poured into glass molds), featuring high molecular weight, superior optical clarity, excellent machining properties, and resistance to chemical crazing. Suitable for luxury retail displays, thick structural components, and complex fabrication.
• Extruded Acrylic Sheet Acrylic sheet produced through continuous extrusion process with consistent thickness tolerance (±0.1mm), cost-effective pricing (15-20% lower than cast), weather resistance, UV resistance, and acid-alkali resistance. Suitable for mass production and standardized applications.
• Clear Acrylic Sheet High-clarity acrylic sheet offering up to 92% light transmission, 10-20 times the impact resistance of glass at half the weight. Ideal for transparent signage, edge-lit displays, and applications requiring pristine optical clarity.
• Color Acrylic Sheet Acrylic sheets available in tinted, vibrant, opaque, translucent, and fluorescent color options for decorative applications where visual impact is key.
• Mirror Acrylic Sheet High-reflect acrylic mirror sheet with over 95% mirror reflectivity, lightweight at half the weight of glass, shatter-resistant construction, corrosion and UV resistance. Easily cut, bent, thermoformed, and carved into custom shapes.
• Pattern Acrylic Sheet Patterned acrylic sheets with hundreds of original designs including marble patterns, wood grains, and geometric lines. Patterns integrated through integral molding process for no fading or wear; light transmittance exceeds 85%.
• Bathtub Acrylic Sheet Acrylic sheet specifically designed for bathroom fixture manufacturing with waterproof properties, resistance to water damage, mold, and chemical corrosion from soaps and cleaning agents. Density 1.17-1.20 g/cm³, high transparency, and high impact resistance.
• Furniture Acrylic Sheet Acrylic sheets designed for interior design and furniture industry with customizable options and 3D-patterned variants. Adds aesthetic appeal to tables, cabinets, and decorative pieces with high light transmission and impact resistance.
• PVC Celuka Board High-density PVC foam board with density 0.35-1.0 g/cm³, excellent impact resistance, waterproof and moisture-proof properties, B1-grade flame retardant standard, and SGS/RoHS certifications. Suitable for signage, furniture, and architectural decoration.
• Rigid PVC Board High-density rigid PVC board with density 1.3-1.4 g/cm³ and Shore D80 hardness. Features impact resistance, complete waterproof and moisture-proof properties (no swelling after 24-hour immersion), UL94 V-0 flame retardant rating, and acid/alkali resistance.
• Decorative PVC Board Decorative PVC board featuring aesthetic finishes achieved through embossing and film coating processes. Available in dozens of finishes including imitation wood grain, stone grain, and metal wire drawing textures.
• SPC Board Stone Powder Composite board made of stone powder and PVC resin pressed at high temperature. Density 1.8-2.0 g/cm³, compressive strength ≥20MPa, 8K high-definition UV printing, B1 fire rating, 4H pencil hardness. Suitable for flooring and wall applications.
• KT Foam Board Lightweight foam board designed for advertising and display applications. Easy to cut, engrave, and process. Suitable for signage, presentations, display stands, and photo mounting.
• WPC Board (Wood Plastic Composite) Wood plastic composite board combining wood fiber and PVC for enhanced durability and moisture resistance. Suitable for outdoor applications including decking, fencing, and exterior decoration.
• High-Clarity Acrylic Sheet Optical-grade acrylic sheet delivering up to 92% light transmission with low haze index and minimal color distortion. Designed for retail displays, museum vitrines, lighting applications, and scientific/medical enclosures requiring absolute transparency.
• High-Reflect Acrylic Sheet for Vanities Premium mirror acrylic sheet with over 95% mirror reflectivity, density 1.17-1.20 g/cm³, and impact resistance 10 times that of glass. Features 92.7% optical transparency, UV resistance, and corrosion resistance. Designed for bathroom vanities, dressing tables, and retail display mirrors.
• OEM/ODM Custom Manufacturing Services Custom OEM and ODM processing services for bulk orders of acrylic sheets and PVC foam boards, including custom size processing, bulk cutting, UV coating, and one-stop services for global buyers. Supports thickness range 1mm to 30mm.

Quantifiable outcome

• 92% light transmission achievable with clear acrylic sheets
• +3 more outcomes

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Spartech: US-based custom manufacturer of engineered thermoplastic sheet and roll products for packaging, industrial, and graphics applications. Comparable in custom plastic sheet manufacturing, OEM/ODM capabilities, and B2B sales to industrial and commercial buyers.
• Brett Martin: UK-based manufacturer of plastic sheets including acrylic (Perspex-equivalent), polycarbonate, and PVC foam boards serving signage, construction, and fabrication markets. Comparable in product range (rigid plastic sheets/boards), international B2B distribution, and target customer base.
• Plaskolite: One of the largest North American manufacturers of acrylic (PMMA) sheets, including cast and extruded variants, serving signage, lighting, and display applications. Directly comparable to Allsign in product category (acrylic sheets), customer segments (sign makers, fabricators), and B2B distribution model.
• Aristech Surfaces: US-based manufacturer of acrylic sheet products (Acrycast, Avonite) for bathtub, spa, signage, and architectural applications. Highly comparable in cast acrylic manufacturing for bathroom fixtures and signage, overlapping directly with Allsign's Bathtub Acrylic and Cast Acrylic product lines.
• Jiangxi Oulida New Material: Chinese PVC foam board manufacturer based in Jiangxi province, producing PVC Celuka, rigid PVC, and WPC boards for furniture, construction, and signage applications. Directly comparable to Allsign in product portfolio, Chinese manufacturing base, export-oriented B2B model, and customer segments.
• 3A Composites (Sintra): Manufacturer of Sintra PVC foam boards and Dibond aluminum composite panels for signage, display, and construction markets. Direct competitor in PVC foam board category with strong North American and European presence; comparable in product specs, certifications, and target use cases.
• Palram Industries: Global Israeli-headquartered manufacturer of polycarbonate and acrylic sheets, PVC foam boards, and rigid thermoplastic panels for construction, signage, and DIY applications. Comparable product portfolio (rigid plastic sheets/boards), similar multi-region distribution, and overlap in advertising/signage customer segments.

Broad incumbents

• Evonik (Plexiglas): German-headquartered specialty chemicals company producing Plexiglas brand PMMA resins and sheets as part of a broader materials portfolio. A major upstream PMMA supplier and downstream sheet producer whose branded acrylic competes with Allsign's cast and clear acrylic products across premium applications.
• Lucite International (Mitsubishi Chemical): Global PMMA manufacturer owned by Mitsubishi Chemical, producing acrylic resins and branded acrylic sheets for construction, automotive, and signage applications. A major industry incumbent whose branded acrylic sheets overlap with Allsign's clear/cast acrylic products in signage and architectural markets.

Regional players

• Asia Poly Holdings: Malaysian manufacturer of cast acrylic sheets serving Asia-Pacific markets including Southeast Asia, where Allsign also has export presence. Comparable in cast acrylic sheet manufacturing and Asian B2B distribution, but with regional rather than global geographic focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/shanghai-solid

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Shanghai Solid Industry Co.,Ltd.