SEC Seaplex
- Company typePrivate
- Founded2021
- HeadquartersHakodate, Japan
- Headcount—
- GTM typeB2B
- OfferingHardware or Manufacturing
SEC Seaplex firmographics
Firmographics- Name
- SEC Seaplex
- Legal name
- 株式会社エスイーシー・シープレックス
- Website
- https://sec-seaprex.co.jp
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Ownership category
- akta.pro rank
SEC Seaplex industry classification
Industry- Product category
- Specialty Waterproofing Materials
- NAICS
- Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)
- SIC
- Adhesives & Sealants (2891), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)
- akta.pro primary industry
- Life-Saving Appliances & Safety Equipment (Davit Systems, Lifeboats, Firefighting) (IMAJAIAG)
Keywords
Where SEC Seaplex is headquartered
LocationHeadquarters
- HQ city
- Hakodate
- HQ country
- Japan
- HQ region
- Asia
Offices2 records
Markets served
SEC Seaplex business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure
Revenue model
- Jellafin Resin Manufacturing and Sales: Manufacture and wholesale distribution of pressure-resistant waterproof resin Jellafin, sold as main agent and curing agent kit. Revenue generated from product sales to marine, infrastructure, and aerospace customers, both directly and through authorized distributors.
- Contract Research and Application Product Manufacturing: Contract research, investigation, and manufacturing of application products related to Jellafin waterproof technology. Custom development and consulting services for specific customer use cases.
- Jellafin Consulting Services: Consulting services related to the use and application of Jellafin pressure-resistant waterproof resin.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels6 records
SEC Seaplex product offering
Product offeringCore offering
SEC Seaplex manufactures and sells Jellafin, a proprietary two-component urethane resin that delivers pressure-resistant waterproofing equivalent to 10,000m water depth while preserving electrical insulation and transparency to light, electromagnetic waves, and magnetism. The company also develops ocean observation instruments (Digital XBT, Digital XCTD, Deep Sea Monitor, RAS Buoy), offers contract research and custom application development around the Jellafin platform, and supplies infrastructure waterproofing solutions including a NETIS-registered bridge expansion joint repair method.
Product overview
SEC Seaplex is a manufacturing company established in April 2021 as a spin-off from SEC. The company offers the core product Jellafin, a pressure-resistant waterproof resin, and has developed ocean observation products including Digital XBT, Digital XCTD, Deep Sea Monitor, and RAS Buoy. Jellafin serves applications across marine, social infrastructure, and aerospace sectors, providing waterproofing, moisture protection, and electrical insulation for electronic components.
Differentiator
Problem solved
Functional benefit
Products and services
- Jellafin (ジェラフィン) Pressure-Resistant Waterproof Resin Two-component mixed urethane resin that remains transparent after solidification and provides pressure-resistant waterproofing while preserving electrical insulation and high permeability to light, electromagnetic waves, and magnetism; confirmed to protect electronic equipment at water depths equivalent to 10,000m. Sold as a main agent and curing agent kit for marine, infrastructure, and aerospace customers.
- Digital XBT (デジタルXBT) Probe Digital expendable bathythermograph probe that simultaneously measures water temperature and pressure; copper-wire and optical-communication variants; uses biodegradable materials such as scallop shells; measurement depth up to 1,000m.
- Digital XCTD (デジタルXCTD) Probe Digital expendable probe that adds a low-cost 4-pole AC conductivity sensor for salinity concentration measurement to the Digital XBT base design, targeted at high-frequency sonar adjustment equipment and deep-sea CTD profiling.
- Deep Sea Monitor (深海底モニタ) Copper-wire XBT with integrated CMOS camera capable of transmitting QVGA (200x320) images at 10fps, enabling deep seabed survey and biological resource investigations at 400-500m depth.
- RAS Buoy (定点海洋観測ブイ RAS) Fixed-point ocean observation buoy measuring water temperature at up to 4 depth levels every 10 minutes and transmitting data hourly via mobile email; deployed for scallop aquaculture monitoring in Uchiura Bay, Hokkaido with over 7 years of continuous operation.
- Bridge Expansion Joint Waterproof Repair Method Construction method that uses Jellafin pressure-resistant waterproof resin filling to repair leaks in bridge expansion joints, registered with NETIS (HK-210010-A) and targeted at public infrastructure maintenance contracts.
Quantifiable outcome
- Electronic components confirmed to operate normally at 10,000m depth equivalent water pressure
- +3 more outcomes
Companies that use SEC Seaplex
Customer profileNamed customers2 records
Segments3 records
Ideal customer profiles3 records
SEC Seaplex technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
SEC Seaplex partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Seaprex Corporation (シープレックス株式会社)coreSeaprex Corporation serves as the authorized general distributor (総代理店) of Jellafin products. While SEC Seaplex handles technical product inquiries and manufacturing, Seaprex manages actual product sales and distribution to end customers from its office in Yokosuka, Kanagawa.
Scale indicators5 records
Recent moves7 records
Expansion highlights6 records
SEC Seaplex competitors and assessment
Company assessmentBroad incumbents
- 3M: Global diversified materials company producing specialty adhesives, sealants, encapsulants, and protective coatings for electronics and industrial applications. Comparable because 3M's electronic materials division competes broadly with Jellafin's waterproofing and electrical-insulation use cases across marine, infrastructure, and aerospace.
- Dow: Global chemical company producing polyurethane resins, specialty polymers, and electronics encapsulants under multiple brands. Comparable because Dow's polyurethane chemistry and electronics protection materials overlap directly with Jellafin's chemistry platform and marine/industrial sealing use cases.
- Wacker Chemie: Specialty silicone and polymer manufacturer producing encapsulants, sealants, and potting compounds for electronics and industrial applications. Comparable for its specialty polymer focus and overlap with Jellafin in transparent/translucent waterproof sealing of electronic components.
- Momentive Performance Materials: Specialty silicones and materials manufacturer producing encapsulants, potting compounds, and protective materials for electronics and aerospace. Comparable for its specialty protective materials serving aerospace electronics and harsh-environment electronics applications.
- Henkel: Manufacturer of Loctite-brand adhesives, potting compounds, and encapsulants widely used in electronics and industrial assembly. Comparable because Henkel's potting and sealing products address similar waterproofing of electronic components in harsh environments, though it does not specialize in extreme-pressure underwater applications.
- Sika: Global manufacturer of specialty sealants, adhesives, and waterproofing systems with strong presence in infrastructure and construction. Comparable for its dominance in bridge and infrastructure joint waterproofing — the same NETIS-registered application SEC Seaplex targets in Japan.
- Shin-Etsu Chemical: Major Japanese chemical manufacturer of silicone encapsulants, potting compounds, and specialty polymer materials used in electronics protection. Comparable as a fellow Japanese specialty chemical supplier serving electronics encapsulation markets that overlap with Jellafin's waterproofing applications.
Direct peers
- Trelleborg: Polymer engineering company with a marine and offshore division producing sealing solutions, cable management, and underwater protection systems. Comparable because Trelleborg serves the same marine/offshore customer base needing high-performance sealing of electronics and equipment in harsh underwater environments.
- Hempel: Marine coatings specialist producing protective coatings and sealants for ships, offshore structures, and marine infrastructure. Comparable for its focus on protecting marine assets from water ingress and corrosion, an adjacent but related use case to Jellafin's electronic-component waterproofing.
- Parker Hannifin: Motion and control technologies company with sealing solutions and engineered materials for marine, aerospace, and offshore applications. Comparable because Parker's sealing products protect marine and offshore electronics from water intrusion, similar to Jellafin's value proposition.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
SEC Seaplex compliance and trust
Trust signalCompliance6 records
SEC Seaplex financial estimates
Financial estimateRevenue estimate
Valuation estimate
SEC Seaplex leadership team
Management profileNumber of profiles
Profiles1 record
SEC Seaplex funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SEC Seaplex M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SEC Seaplex
What does SEC Seaplex do?
SEC Seaplex manufactures and sells Jellafin, a proprietary two-component urethane resin that delivers pressure-resistant waterproofing equivalent to 10,000m water depth while preserving electrical insulation and transparency to light, electromagnetic waves, and magnetism. The company also develops ocean observation instruments (Digital XBT, Digital XCTD, Deep Sea Monitor, RAS Buoy), offers contract research and custom application development around the Jellafin platform, and supplies infrastructure waterproofing solutions including a NETIS-registered bridge expansion joint repair method.
Is SEC Seaplex a public or private company?
SEC Seaplex is a private company. It is classified as management employee owned and is currently operating.
When was SEC Seaplex founded?
SEC Seaplex was founded in 2021.
Where is SEC Seaplex based?
SEC Seaplex is headquartered in Hakodate, Japan, in the Asia region.
How does SEC Seaplex make money?
Three revenue lines are on record. Jellafin Resin Manufacturing and Sales are the primary driver. The others are contract Research and Application Product Manufacturing and jellafin Consulting Services.
Who are SEC Seaplex's main competitors?
Broad incumbents on record are 3M, Dow, Wacker Chemie, Momentive Performance Materials, Henkel, Sika and Shin-Etsu Chemical. Direct peers are Trelleborg, Hempel and Parker Hannifin.
Does SEC Seaplex have an API?
No public API is recorded for SEC Seaplex.
What industry is SEC Seaplex in?
SEC Seaplex's product category is Specialty Waterproofing Materials. Its primary akta.pro industry code is IMAJAIAG, Life-Saving Appliances & Safety Equipment (Davit Systems, Lifeboats, Firefighting). Its NAICS code is 334511 and its SIC code is 2891.